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LukePerp

[Résolu] Info démarrage accéléré de 6s

Bonjour,

Derrière ce titre provocateur, je voulais juste partager une info. Ma souris sans fil Logitech M215 fait perdre 6 secondes au démarrage d'Ubuntu 20.04. En débranchant son connecteur usb, le démarrage est donc accéléré de 6 secondes. C'est complètement par hasard que j'ai remarqué ce phénomène étonnant. Ci-dessous, extrait des logs, avec et sans la souris sans fil. Je précise que j'ai 2 souris Logitech, une optique et l'autre sans fil.

# Avec la souris sans fil
$ dmesg
...
[    1.190042] usb 2-1.5: New USB device found, idVendor=046d, idProduct=c52f, bcdDevice=16.00
[    1.190044] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    1.190045] usb 2-1.5: Product: USB Receiver
[    1.190045] usb 2-1.5: Manufacturer: Logitech
[    1.192061] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/0003:046D:C52F.0003/input/input5
[    1.192122] hid-generic 0003:046D:C52F.0003: input,hidraw2: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1d.0-1.5/input0
[    1.193490] input: Logitech USB Receiver Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.1/0003:046D:C52F.0004/input/input6
[    1.251180] hid-generic 0003:046D:C52F.0004: input,hiddev0,hidraw3: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.0-1.5/input1
[    1.299195] logitech-djreceiver 0003:046D:C52F.0003: hidraw2: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1d.0-1.5/input0
[    1.395448] logitech-djreceiver 0003:046D:C52F.0004: hiddev0,hidraw3: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.0-1.5/input1
[    1.455908] logitech-djreceiver 0003:046D:C52F.0004: device of type QUAD or eQUAD (0x03) connected on slot 1
[    1.456173] input: Logitech Wireless Mouse PID:1020 Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.1/0003:046D:C52F.0004/0003:046D:1020.0005/input/input9
[    1.456255] input: Logitech Wireless Mouse PID:1020 Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.1/0003:046D:C52F.0004/0003:046D:1020.0005/input/input10
[    1.456299] hid-generic 0003:046D:1020.0005: input,hidraw4: USB HID v1.11 Mouse [Logitech Wireless Mouse PID:1020] on usb-0000:00:1d.0-1.5/input1:1
[    1.458847] usb 1-1.6: new low-speed USB device number 5 using ehci-pci
[    1.571078] usb 1-1.6: New USB device found, idVendor=046d, idProduct=c05a, bcdDevice=63.00
[    1.571081] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    1.571083] usb 1-1.6: Product: USB Optical Mouse
[    1.571084] usb 1-1.6: Manufacturer: Logitech
[    1.573602] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/0003:046D:C05A.0006/input/input14
[    1.573823] hid-generic 0003:046D:C05A.0006: input,hidraw4: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:1a.0-1.6/input0
[    6.708029] input: Logitech Wireless Mouse PID:1020 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.1/0003:046D:C52F.0004/0003:046D:1020.0005/input/input15
[    6.708310] logitech-hidpp-device 0003:046D:1020.0005: input,hidraw5: USB HID v1.11 Mouse [Logitech Wireless Mouse PID:1020] on usb-0000:00:1d.0-1.5/input1:1
[    6.796148] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[    6.992641] systemd[1]: Inserted module 'autofs4'
[    7.007263] systemd[1]: systemd 245.4-4ubuntu3 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid)
...
$ sudo systemd-analyze
Startup finished in 6.965s (kernel) + 8.609s (userspace) = 15.575s 
graphical.target reached after 8.594s in userspace
$ sudo systemd-analyze blame
6.878s NetworkManager-wait-online.service                        
1.184s dev-sda1.device                                           
1.113s nfs-server.service                                        
1.084s blueman-mechanism.service                                 
...

# Sans la souris sans fil
$ dmesg
...
[    1.378499] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[    1.446793] usb 1-1.6: new low-speed USB device number 5 using ehci-pci
[    1.559291] usb 1-1.6: New USB device found, idVendor=046d, idProduct=c05a, bcdDevice=63.00
[    1.559294] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    1.559296] usb 1-1.6: Product: USB Optical Mouse
[    1.559298] usb 1-1.6: Manufacturer: Logitech
[    1.561914] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/0003:046D:C05A.0003/input/input5
[    1.562149] hid-generic 0003:046D:C05A.0003: input,hidraw2: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:1a.0-1.6/input0
[    1.567483] systemd[1]: Inserted module 'autofs4'
[    1.581302] systemd[1]: systemd 245.4-4ubuntu3 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid)
...
$ sudo systemd-analyze

Startup finished in 1.541s (kernel) + 8.506s (userspace) = 10.048s 
graphical.target reached after 8.490s in userspace
$ sudo systemd-analyze blame
6.615s NetworkManager-wait-online.service                        
1.210s dev-sda1.device                                           
1.118s nfs-server.service                                        
 986ms blueman-mechanism.service                                 
...

Dernière modification par LukePerp (Le 29/05/2020, à 12:55)

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Desktop & Laptop - Ubuntu Mate dernière LTS - Intel i5 - 16 Go - Dual boot Windows offline