Ubuntu-fr

Bonjour,
Il m'est impossible de configurer correctement le second écran connecté au port VGA de pc portable.
Voici le détail de mon analyse. Désolé pour le contenu c'est du texte brut.

Ma configuration :
Portable Dell D430
Dual boot: Windows 7 et Ubuntu 12.04
second écran : DGM L-2266WD (1920 X 1080 H:30-80Hz V:56-75Hz) - http://www.digimate.com/france/productD … p?prod=506

Après plusieurs années de satisfaction avec Ubuntu 10.04 entre noël et le jour de l'an j'ai offert à mon D430 une migration vers la nouvelle LTS 12.04. Tout c'est bien passé sur le portable seul.

Le 3 janvier j'utilise mon portable au bureau en le connectant avec le second écran sur la prise VGA. La galère commence, impossible de régler la résolution. je ne parle pas des rotations d'écran avec impossibilité de revenir à une position normale.
Avec ubuntu 10.04 tout était normal, je n'ai jamais rencontré de problème d'affichage avec les doubles écrans.

Je part à la recherche sur le net. Visiblement je ne suis pas le seul à avoir de déboir avec les résolutions non reconnues.

Voici les informations sur mon système avec les commandes utilisées pour obtenir les infos :

sudo lshw

RESULTAT PARTIEL DE LA COMMANDE

description: Ordinateur Transportable
    produit: Latitude D430 ()
    fabriquant: Winbond Electronics
    numéro de série: 0000000
    bits: 32 bits
    fonctionnalités: smbios-2.4 dmi-2.4
    configuration: boot=normal chassis=portable uuid=44454C4C-3000-1030-8030-B0C04F303030
  *-core
       description: Carte mère
       fabriquant: Winbond Electronics
       identifiant matériel: 0
       numéro de série: .0000000.              .
     *-firmware
          description: BIOS
          fabriquant: Winbond Electronics
          identifiant matériel: 0
          version: A09
          date: 01/04/2010
          taille: 64KiB
          capacité: 512KiB
          fonctionnalités: isa pci pcmcia pnp upgrade shadowing cdboot bootselect int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb agp smartbattery biosbootspecification netboot
     *-cpu
          description: CPU
          produit: Intel(R) Core(TM)2 Duo CPU     U7600  @ 1.20GHz
          fabriquant: Intel Corp.
          identifiant matériel: 400
          information bus: cpu@0
          version: 6.15.13
          numéro de série: 0000-06FD-0000-0000-0000-0000
          emplacement: Microprocessor
          taille: 1200MHz
          capacité: 1200MHz
          bits: 64 bits
          horloge: 133MHz
....         
        *-display:0
             description: VGA compatible controller
             produit: Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller
             fabriquant: Intel Corporation
             identifiant matériel: 2
             information bus: pci@0000:00:02.0
             version: 03
             bits: 32 bits
             horloge: 33MHz
             fonctionnalités: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             ressources: irq:16 mémoire:eff00000-eff7ffff portE/S:eff8(taille=8) mémoire:d0000000-dfffffff mémoire:efec0000-efefffff
        *-display:1 NON-RÉCLAMÉ
             description: Display controller
             produit: Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller
             fabriquant: Intel Corporation
             identifiant matériel: 2.1
             information bus: pci@0000:00:02.1
             version: 03
             bits: 32 bits
             horloge: 33MHz
             fonctionnalités: pm bus_master cap_list
             configuration: latency=0
             ressources: mémoire:eff80000-effff

lspci | grep VGA

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

xrandr

Screen 0: minimum 320 x 200, current 2048 x 768, maximum 4096 x 4096
LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
   1280x800       60.0 +
   1024x768       60.0*
   800x600        60.3     56.2 
   640x480        59.9 
VGA1 connected 1024x768+1024+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*
   800x600        60.3     56.2 
   848xrandr --output VGA1 --mode 1920x1080_60.00x480        60.0 
   640x480        59.9 

A CE STADE JE PENSE QUE LA CARTE GRAPHIQUE EST BIEN RECONNUE PAR CONTRE L'ECRAN SUR LE PORT VGA N'EST PAS BIEN IDENTIFIÉ ET LORSQUE LES 2 ECRANS SONT EN FONCTION. l'OS MET PAR DÉFAUT LA PLUS HAUTE RESOLUTION COMMUNE SOIT (1024 x 768) SUR LES 2 ECRANS.

L'écran LVDS seul permet bien l'affichage en 1280X800, mais impossible de l'utiliser si le second écran est branché sur le port VGA.

Si je tente de modifier la résolution de l'écran LVDS par le menu affichage voici les messages d'erreurs

Premier message d'erreur
La taille souhaitée (2304, 800) dépasse la limite matérielle 3D (2048, 2048).
Vous devez redisposer les écrans pour qu'ils soient contenus dans un rectangle (2048, 2048)
ou choisir une session Ubuntu 2D lors de la connexion.

Second message d'erreur
GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._gnome_2drr_2derror_2dquark.Code3: La taille souhaitée (2304, 800) dépasse la limite matérielle 3D (2048, 2048).
Vous devez redisposer les écrans pour qu'ils soient contenus dans un rectangle (2048, 2048)
ou choisir une session Ubuntu 2D lors de la connexion.

Ma machine est bien compatible avec Unity 3D
/usr/lib/nux/unity_support_test -p
OpenGL vendor string:   Tungsten Graphics, Inc
OpenGL renderer string: Mesa DRI Intel(R) 945GM x86/MMX/SSE2
OpenGL version string:  1.4 Mesa 8.0.4

Not software rendered:    yes
Not blacklisted:          yes
GLX fbconfig:             yes
GLX texture from pixmap:  yes
GL npot or rect textures: yes
GL vertex program:        yes
GL fragment program:      yes
GL vertex buffer object:  yes
GL framebuffer object:    yes
GL version is 1.4+:       yes

Unity 3D supported:       yes

recherche des méthodes pour ajouter un nouvelle résolution sur les écrans :
http://doc.ubuntu-fr.org/resolution_ecran_avance
http://doc.ubuntu-fr.org/xrandr
https://wiki.ubuntu.com/X/Config/Resolution

Apllication des commandes suivantes :
cvt 1920 1080
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync

xrandr --newmode "1920x1080_60.00" 173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync
xrandr --addmode VGA1 1920x1080_60.00
xrandr --output VGA1 --mode 1920x1080_60.00

Le résultat est bizarre, la résolution a bien changée mais la dalle de l'écran  est partiellement rempli et le PC est impossible à utiliser car le temps rafraisisement de l'écran est abominablement long. J'ai rebooté le PC pour revenir à ma confuguration initiale.

Voici le Xorg.0.log (un peu epuré) - des Bug liés à l'affichage sont bien identifiés
[    30.355]
X.Org X Server 1.11.3
Release Date: 2011-12-16
[    30.355] X Protocol Version 11, Revision 0
[    30.355] Build Operating System: Linux 2.6.42-26-generic i686 Ubuntu
[    30.355] Current Operating System: Linux francois-D430 3.2.0-35-generic-pae #55-Ubuntu SMP Wed Dec 5 18:04:39 UTC 2012 i686
[    30.355] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-35-generic-pae root=UUID=1660fdd4-86a8-4183-8ca2-db0e66d75070 ro quiet splash vt.handoff=7
[    30.355] Build Date: 29 August 2012  12:10:05AM
[    30.355] xorg-server 2:1.11.4-0ubuntu10.8 (For technical support please see http://www.ubuntu.com/support)
[    30.355] Current version of pixman: 0.24.4
[    30.355]     Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
[    30.355] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    30.355] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jan  4 08:43:27 2013
[    30.367] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    30.367] (==) No Layout section.  Using the first Screen section.
[    30.367] (==) No screen section available. Using defaults.
[    30.367] (**) |-->Screen "Default Screen Section" (0)
[    30.367] (**) |   |-->Monitor "<default monitor>"
[    30.367] (==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
[    30.367] (==) Automatically adding devices
[    30.367] (==) Automatically enabling devices
[    30.368] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    30.368]     Entry deleted from font path.
[    30.368] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[    30.368]     Entry deleted from font path.
[    30.368] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[    30.368]     Entry deleted from font path.
[    30.368] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[    30.368]     Entry deleted from font path.
[    30.368] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[    30.368]     Entry deleted from font path.
[    30.368] (WW) The directory "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" does not exist.
[    30.368]     Entry deleted from font path.
[    30.368] (==) FontPath set to:
    /usr/share/fonts/X11/misc,
    /usr/share/fonts/X11/Type1,
    built-ins
[    30.368] (==) ModulePath set to "/usr/lib/i386-linux-gnu/xorg/extra-modules,/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[    30.368] (II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
[    30.368] (II) Loader magic: 0xb77a95a0
[    30.368] (II) Module ABI versions:
[    30.368]     X.Org ANSI C Emulation: 0.4
[    30.368]     X.Org Video Driver: 11.0
[    30.368]     X.Org XInput driver : 16.0
[    30.368]     X.Org Server Extension : 6.0
[    30.403] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[    30.403] (II) Module extmod: vendor="X.Org Foundation"
[    30.403]     compiled for 1.11.3, module version = 1.0.0
[    30.403]     Module class: X.Org Server Extension
[    30.403]     ABI class: X.Org Server Extension, version 6.0
[    30.403] (II) Loading extension MIT-SCREEN-SAVER
[    30.403] (II) Loading extension XFree86-VidModeExtension
[    30.403] (II) Loading extension XFree86-DGA
[    30.403] (II) Loading extension DPMS
[    30.403] (II) Loading extension XVideo
[    30.403] (II) Loading extension XVideo-MotionCompensation
[    30.403] (II) Loading extension X-Resource
[    30.403] (II) LoadModule: "dbe"
[    30.404] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[    30.404] (II) Module dbe: vendor="X.Org Foundation"
[    30.404]     compiled for 1.11.3, module version = 1.0.0
[    30.404]     Module class: X.Org Server Extension
[    30.404]     ABI class: X.Org Server Extension, version 6.0
[    30.404] (II) Loading extension DOUBLE-BUFFER
[    30.404] (II) LoadModule: "glx"
[    30.404] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    30.405] (II) Module glx: vendor="X.Org Foundation"
[    30.405]     compiled for 1.11.3, module version = 1.0.0
[    30.405]     ABI class: X.Org Server Extension, version 6.0
[    30.405] (==) AIGLX enabled
[    30.405] (II) Loading extension GLX
[    30.405] (II) LoadModule: "record"
[    30.405] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[    30.405] (II) Module record: vendor="X.Org Foundation"
[    30.405]     compiled for 1.11.3, module version = 1.13.0
[    30.405]     Module class: X.Org Server Extension
[    30.405]     ABI class: X.Org Server Extension, version 6.0
[    30.405] (II) Loading extension RECORD
[    30.405] (II) LoadModule: "dri"
[    30.406] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[    30.406] (II) Module dri: vendor="X.Org Foundation"
[    30.406]     compiled for 1.11.3, module version = 1.0.0
[    30.406]     ABI class: X.Org Server Extension, version 6.0
[    30.406] (II) Loading extension XFree86-DRI
[    30.406] (II) LoadModule: "dri2"
[    30.406] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[    30.406] (II) Module dri2: vendor="X.Org Foundation"
[    30.406]     compiled for 1.11.3, module version = 1.2.0
[    30.406]     ABI class: X.Org Server Extension, version 6.0
[    30.406] (II) Loading extension DRI2
[    30.406] (==) Matched intel as autoconfigured driver 0
[    30.407] (==) Matched vesa as autoconfigured driver 1
[    30.407] (==) Matched fbdev as autoconfigured driver 2
[    30.407] (==) Assigned the driver to the xf86ConfigLayout
[    30.407] (II) LoadModule: "intel"
[    30.407] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[    30.407] (II) Module intel: vendor="X.Org Foundation"
[    30.407]     compiled for 1.11.3, module version = 2.17.0
[    30.407]     Module class: X.Org Video Driver
[    30.407]     ABI class: X.Org Video Driver, version 11.0
[    30.407] (II) LoadModule: "vesa"
[    30.408] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    30.408] (II) Module vesa: vendor="X.Org Foundation"
[    30.408]     compiled for 1.11.3, module version = 2.3.0
[    30.408]     Module class: X.Org Video Driver
[    30.408]     ABI class: X.Org Video Driver, version 11.0
[    30.408] (II) LoadModule: "fbdev"
[    30.409] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    30.409] (II) Module fbdev: vendor="X.Org Foundation"
[    30.409]     compiled for 1.11.3, module version = 0.4.2
[    30.409]     ABI class: X.Org Video Driver, version 11.0
[    30.409] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
    i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G,
    E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G,
    965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45,
    4 Series, G45/G43, Q45/Q43, G41, B43, B43, Clarkdale, Arrandale,
    Sandybridge Desktop (GT1), Sandybridge Desktop (GT2),
    Sandybridge Desktop (GT2+), Sandybridge Mobile (GT1),
    Sandybridge Mobile (GT2), Sandybridge Mobile (GT2+),
    Sandybridge Server, Ivybridge Mobile (GT1), Ivybridge Mobile (GT2),
    Ivybridge Desktop (GT1), Ivybridge Desktop (GT2), Ivybridge Server

[    30.414] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[    30.414] (WW) Falling back to old probe method for vesa
[    30.414] (WW) Falling back to old probe method for fbdev
[    30.414] (II) Loading sub module "fbdevhw"
[    30.414] (II) LoadModule: "fbdevhw"
[    30.459] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[    30.459] (II) Module fbdevhw: vendor="X.Org Foundation"
[    30.459]     compiled for 1.11.3, module version = 0.0.2
[    30.459]     ABI class: X.Org Video Driver, version 11.0
[    30.460] drmOpenDevice: node name is /dev/dri/card0
[    30.460] drmOpenDevice: open result is 9, (OK)
[    30.460] drmOpenByBusid: Searching for BusID pci:0000:00:02.0
[    30.460] drmOpenDevice: node name is /dev/dri/card0
[    30.460] drmOpenDevice: open result is 9, (OK)
[    30.460] drmOpenByBusid: drmOpenMinor returns 9
[    30.460] drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
[    30.460] (II) intel(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
[    30.460] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[    30.460] (==) intel(0): RGB weight 888
[    30.460] (==) intel(0): Default visual is TrueColor
[    30.460] (II) intel(0): Integrated Graphics Chipset: Intel(R) 945GM
[    30.460] (--) intel(0): Chipset: "945GM"
[    30.460] (**) intel(0): Relaxed fencing disabled
[    30.460] (**) intel(0): Wait on SwapBuffers? enabled
[    30.460] (**) intel(0): Triple buffering? enabled
[    30.460] (**) intel(0): Framebuffer tiled
[    30.460] (**) intel(0): Pixmaps tiled
[    30.460] (**) intel(0): 3D buffers tiled
[    30.460] (**) intel(0): SwapBuffers wait enabled
[    30.460] (==) intel(0): video overlay key set to 0x101fe
[    30.460] (II) intel(0): Output LVDS1 has no monitor section
[    30.461] (II) intel(0): found backlight control interface /sys/class/backlight/intel_backlight
[    30.492] (II) intel(0): Output VGA1 has no monitor section
[    30.508] (II) intel(0): Output DVI1 has no monitor section
[    30.882] (II) intel(0): Output TV1 has no monitor section
[    30.882] (II) intel(0): EDID for output LVDS1
[    30.882] (II) intel(0): Manufacturer: LCD  Model: 3706  Serial#: 808858678
[    30.882] (II) intel(0): Year: 2007  Week: 42
[    30.882] (II) intel(0): EDID Version: 1.3
[    30.882] (II) intel(0): Digital Display Input
[    30.882] (II) intel(0): Max Image Size [cm]: horiz.: 26  vert.: 16
[    30.882] (II) intel(0): Gamma: 2.20
[    30.882] (II) intel(0): No DPMS capabilities specified
[    30.882] (II) intel(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4
[    30.882] (II) intel(0): First detailed timing is preferred mode
[    30.882] (II) intel(0): redX: 0.600 redY: 0.340   greenX: 0.310 greenY: 0.550
[    30.883] (II) intel(0): blueX: 0.150 blueY: 0.135   whiteX: 0.315 whiteY: 0.330
[    30.883] (II) intel(0): Manufacturer's mask: 0
[    30.883] (II) intel(0): Supported detailed timing:
[    30.883] (II) intel(0): clock: 68.5 MHz   Image Size:  261 x 163 mm
[    30.883] (II) intel(0): h_active: 1280  h_sync: 1296  h_sync_end 1344 h_blank_end 1410 h_border: 0
[    30.883] (II) intel(0): v_active: 800  v_sync: 802  v_sync_end 804 v_blanking: 810 v_border: 0
[    30.883] (II) intel(0):  TM111\A1121EW3D
[    30.883] (II) intel(0):  *9EPp\90\B0\FF
[    30.883] (II) intel(0): EDID (in hex):
[    30.883] (II) intel(0):     00ffffffffffff003064063736343630
[    30.883] (II) intel(0):     2a110103801a10780a87ae99574f8c26
[    30.883] (II) intel(0):     22505400000001010101010101010101
[    30.883] (II) intel(0):     010101010101c21a008250200a301030
[    30.883] (II) intel(0):     220005a3100000180000000000000000
[    30.883] (II) intel(0):     00000000000000000000000000fe0054
[    30.883] (II) intel(0):     4d313131a131323145573344000000fe
[    30.883] (II) intel(0):     002a3945507090b0ff01010a20200059
[    30.883] (II) intel(0): EDID vendor "LCD", prod id 14086
[    30.883] (II) intel(0): Printing DDC gathered Modelines:
[    30.883] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    30.883] (II) intel(0): Not using default mode "320x240" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "512x384" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "640x480" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "640x512" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "800x600" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "896x672" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "928x696" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "960x720" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "576x432" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "700x525" (doublescan mode not supported)
[    30.883] (II) intel(0): Not using default mode "720x450" (doublescan mode not supported)
[    30.884] (II) intel(0): Not using default mode "800x512" (doublescan mode not supported)
[    30.884] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported)
[    30.884] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported)
[    30.884] (II) intel(0): Not using default mode "960x540" (doublescan mode not supported)
[    30.884] (II) intel(0): Not using default mode "960x600" (doublescan mode not supported)
[    30.884] (II) intel(0): Not using default mode "1024x768" (doublescan mode not supported)
[    30.884] (II) intel(0): Printing probed modes for output LVDS1
[    30.884] (II) intel(0): Modeline "1280x800"x60.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    30.884] (II) intel(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
[    30.884] (II) intel(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[    30.884] (II) intel(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz)
[    30.884] (II) intel(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[    30.916] (II) intel(0): EDID for output VGA1
[    30.932] (II) intel(0): EDID for output DVI1
[    31.309] (II) intel(0): EDID for output TV1
[    31.309] (II) intel(0): Output LVDS1 connected
[    31.309] (II) intel(0): Output VGA1 disconnected
[    31.309] (II) intel(0): Output DVI1 disconnected
[    31.309] (II) intel(0): Output TV1 disconnected
[    31.309] (II) intel(0): Using exact sizes for initial modes
[    31.309] (II) intel(0): Output LVDS1 using initial mode 1280x800
[    31.309] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[    31.309] (II) intel(0): Kernel page flipping support detected, enabling
[    31.309] (**) intel(0): Display dimensions: (260, 160) mm
[    31.309] (**) intel(0): DPI set to (125, 126)
[    31.309] (II) Loading sub module "fb"
[    31.309] (II) LoadModule: "fb"
[    31.310] (II) Loading /usr/lib/xorg/modules/libfb.so
[    31.310] (II) Module fb: vendor="X.Org Foundation"
[    31.310]     compiled for 1.11.3, module version = 1.0.0
[    31.310]     ABI class: X.Org ANSI C Emulation, version 0.4
[    31.310] (II) Loading sub module "dri2"
[    31.310] (II) LoadModule: "dri2"
[    31.310] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[    31.310] (II) Module dri2: vendor="X.Org Foundation"
[    31.310]     compiled for 1.11.3, module version = 1.2.0
[    31.310]     ABI class: X.Org Server Extension, version 6.0
[    31.310] (II) UnloadModule: "vesa"
[    31.310] (II) Unloading vesa
[    31.310] (II) UnloadModule: "fbdev"
[    31.310] (II) Unloading fbdev
[    31.311] (II) UnloadModule: "fbdevhw"
[    31.311] (II) Unloading fbdevhw
[    31.311] (==) Depth 24 pixmap format is 32 bpp
[    31.311] (II) intel(0): [DRI2] Setup complete
[    31.311] (II) intel(0): [DRI2]   DRI driver: i915
[    31.311] (II) intel(0): Allocated new frame buffer 1280x800 stride 8192, tiled
[    31.311] (II) UXA(0): Driver registered support for the following operations:
[    31.311] (II)         solid
[    31.311] (II)         copy
[    31.311] (II)         composite (RENDER acceleration)
[    31.311] (II)         put_image
[    31.311] (II)         get_image
[    31.311] (==) intel(0): Backing store disabled
[    31.311] (==) intel(0): Silken mouse enabled
[    31.311] (II) intel(0): Initializing HW Cursor
[    31.340] (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[    31.340] (==) intel(0): DPMS enabled
[    31.340] (==) intel(0): Intel XvMC decoder disabled
[    31.340] (II) intel(0): Set up textured video
[    31.340] (II) intel(0): Set up overlay video
[    31.340] (II) intel(0): direct rendering: DRI2 Enabled
[    31.340] (==) intel(0): hotplug detection: "enabled"
[    31.341] (--) RandR disabled
[    31.341] (II) Initializing built-in extension Generic Event Extension
[    31.341] (II) Initializing built-in extension SHAPE
[    31.341] (II) Initializing built-in extension MIT-SHM
[    31.341] (II) Initializing built-in extension XInputExtension
[    31.341] (II) Initializing built-in extension XTEST
[    31.341] (II) Initializing built-in extension BIG-REQUESTS
[    31.341] (II) Initializing built-in extension SYNC
[    31.341] (II) Initializing built-in extension XKEYBOARD
[    31.341] (II) Initializing built-in extension XC-MISC
[    31.341] (II) Initializing built-in extension SECURITY
[    31.341] (II) Initializing built-in extension XINERAMA
[    31.341] (II) Initializing built-in extension XFIXES
[    31.341] (II) Initializing built-in extension RENDER
[    31.341] (II) Initializing built-in extension RANDR
[    31.341] (II) Initializing built-in extension COMPOSITE
[    31.341] (II) Initializing built-in extension DAMAGE
[    31.364] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer
[    31.364] (II) AIGLX: enabled GLX_INTEL_swap_event
[    31.364] (II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control
[    31.364] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
[    31.364] (II) AIGLX: Loaded and initialized i915
[    31.364] (II) GLX: Initialized DRI2 GL provider for screen 0
[    31.365] (II) intel(0): Setting screen physical size to 338 x 211
[    31.381] (II) XKB: reuse xkmfile /var/lib/xkb/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm
[    31.389] (II) config/udev: Adding input device Video Bus (/dev/input/event7)
[    31.389] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
[    31.389] (II) LoadModule: "evdev"
[    31.389] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    31.389] (II) Module evdev: vendor="X.Org Foundation"
[    31.389]     compiled for 1.11.3, module version = 2.7.0
[    31.389]     Module class: X.Org XInput Driver
[    31.389]     ABI class: X.Org XInput driver, version 16.0
[    31.389] (II) Using input driver 'evdev' for 'Video Bus'
[    31.390] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    31.390] (**) Video Bus: always reports core events
[    31.390] (**) evdev: Video Bus: Device: "/dev/input/event7"
[    31.390] (--) evdev: Video Bus: Vendor 0 Product 0x6
[    31.390] (--) evdev: Video Bus: Found keys
[    31.390] (II) evdev: Video Bus: Configuring as keyboard
[    31.390] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/device:00/PNP0A03:00/LNXVIDEO:00/input/input7/event7"
[    31.390] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 6)
[    31.390] (**) Option "xkb_rules" "evdev"
[    31.390] (**) Option "xkb_model" "pc105"
[    31.390] (**) Option "xkb_layout" "fr"
[    31.390] (**) Option "xkb_variant" "latin9"
[    31.394] (II) XKB: reuse xkmfile /var/lib/xkb/server-816A055A5FF7D63897839A4BDEDC3908551E49DA.xkm

[    33.775] (II) intel(0): EDID vendor "LCD", prod id 14086
[    33.775] (II) intel(0): Printing DDC gathered Modelines:
[    33.776] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    35.435] (II) intel(0): EDID vendor "LCD", prod id 14086
[    35.435] (II) intel(0): Printing DDC gathered Modelines:
[    35.435] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    36.900] (II) intel(0): EDID vendor "LCD", prod id 14086
[    36.900] (II) intel(0): Printing DDC gathered Modelines:
[    36.900] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    41.517] (II) XKB: reuse xkmfile /var/lib/xkb/server-03AF3717FF3AB439A4BAABA686CCB40771CDF520.xkm
[    57.396] (II) intel(0): EDID vendor "LCD", prod id 14086
[    57.396] (II) intel(0): Printing DDC gathered Modelines:
[    57.396] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    65.089] (II) intel(0): EDID vendor "LCD", prod id 14086
[    65.089] (II) intel(0): Printing DDC gathered Modelines:
[    65.089] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)
[    66.362] (II) intel(0): Allocated new frame buffer 2048x768 stride 8192, tiled
[    66.692] BUG: triggered 'if (!dev->valuator || dev->valuator->numAxes < 2)'
BUG: ../../dix/getevents.c:850 in scale_to_desktop()
[    66.692]
Backtrace:
[    66.719] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb773c647]
[    66.719] 1: /usr/bin/X (0xb75b4000+0x4c5af) [0xb76005af]
[    66.720] 2: /usr/bin/X (0xb75b4000+0x4d1a8) [0xb76011a8]
[    66.720] 3: /usr/bin/X (GetPointerEvents+0x10e) [0xb76025fe]
[    66.720] 4: /usr/bin/X (0xb75b4000+0x171aba) [0xb7725aba]
[    66.720] 5: /usr/bin/X (miPointerWarpCursor+0xd5) [0xb7725ef5]
[    66.720] 6: /usr/bin/X (0xb75b4000+0x743e5) [0xb76283e5]
[    66.720] 7: /usr/bin/X (0xb75b4000+0x172415) [0xb7726415]
[    66.720] 8: /usr/bin/X (0xb75b4000+0x108a50) [0xb76bca50]
[    66.720] 9: /usr/bin/X (0xb75b4000+0xf2042) [0xb76a6042]
[    66.720] 10: /usr/bin/X (RRPointerScreenConfigured+0x88) [0xb76a6268]
[    66.720] 11: /usr/bin/X (RRTellChanged+0xef) [0xb769f35f]
[    66.720] 12: /usr/bin/X (RRCrtcSet+0x39f) [0xb76a058f]
[    66.720] 13: /usr/bin/X (ProcRRSetCrtcConfig+0x43c) [0xb76a162c]
[    66.720] 14: /usr/bin/X (0xb75b4000+0xea8d0) [0xb769e8d0]
[    66.721] 15: /usr/bin/X (0xb75b4000+0x3791d) [0xb75eb91d]
[    66.721] 16: /usr/bin/X (0xb75b4000+0x2535a) [0xb75d935a]
[    66.721] 17: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xb72154d3]
[    66.721] 18: /usr/bin/X (0xb75b4000+0x25699) [0xb75d9699]
[    66.721] BUG: triggered 'if (!dev->valuator || dev->valuator->numAxes < 2)'
BUG: ../../dix/getevents.c:850 in scale_to_desktop()
[    66.721]
Backtrace:
[    66.791] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb773c647]
[    66.791] 1: /usr/bin/X (0xb75b4000+0x4c5af) [0xb76005af]
[    66.791] 2: /usr/bin/X (0xb75b4000+0x4d1a8) [0xb76011a8]
[    66.791] 3: /usr/bin/X (GetPointerEvents+0x3d8) [0xb76028c8]
[    66.791] 4: /usr/bin/X (0xb75b4000+0x171aba) [0xb7725aba]
[    66.791] 5: /usr/bin/X (miPointerWarpCursor+0xd5) [0xb7725ef5]
[    66.791] 6: /usr/bin/X (0xb75b4000+0x743e5) [0xb76283e5]
[    66.792] 7: /usr/bin/X (0xb75b4000+0x172415) [0xb7726415]
[    66.792] 8: /usr/bin/X (0xb75b4000+0x108a50) [0xb76bca50]
[    66.792] 9: /usr/bin/X (0xb75b4000+0xf2042) [0xb76a6042]
[    66.792] 10: /usr/bin/X (RRPointerScreenConfigured+0x88) [0xb76a6268]
[    66.792] 11: /usr/bin/X (RRTellChanged+0xef) [0xb769f35f]
[    66.792] 12: /usr/bin/X (RRCrtcSet+0x39f) [0xb76a058f]
[    66.792] 13: /usr/bin/X (ProcRRSetCrtcConfig+0x43c) [0xb76a162c]
[    66.792] 14: /usr/bin/X (0xb75b4000+0xea8d0) [0xb769e8d0]
[    66.792] 15: /usr/bin/X (0xb75b4000+0x3791d) [0xb75eb91d]
[    66.792] 16: /usr/bin/X (0xb75b4000+0x2535a) [0xb75d935a]
[    66.792] 17: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xb72154d3]
[    66.792] 18: /usr/bin/X (0xb75b4000+0x25699) [0xb75d9699]
[    79.228] (II) intel(0): EDID vendor "LCD", prod id 14086
[    79.228] (II) intel(0): Printing DDC gathered Modelines:
[    79.228] (II) intel(0): Modeline "1280x800"x0.0   68.50  1280 1296 1344 1410  800 802 804 810 -hsync -vsync (48.6 kHz)

Le problème rencontré est très proche du bug reporté ci-après
https://bugs.launchpad.net/ubuntu/+sour … ug/1044955

Là je ne sait plus quoi faire. Y a t'il un spécialiste pour m'aider ?

Merci d'avoir pris le temps de lire ..