voila depuis quelques temps, mon 2eme ecran branché sur display port "peine a demarrer" apres une mise en veille profonde.
le premier en VGA se reveille sans probleme, du bon pied, sans bargouiner.
par contre son copain, branché en Display Port met plus d une minute a s afficher correctement. il affiche un dixieme de seconde, s eteind, affiche a nouveau 2 ou 3 secondes plus tard pendant un dixieme de seconde et ainsi de suite pendant 1 a 2 minutes. puis finalement il se stabilise et fonctionne sans souci ensuite.
j ai rien vu dans la log X ni systeme qui pourrait l expliquer.
mon inxi :
[frederic@HP8460P ~]$ inxi -F
System: Host: HP8460P Kernel: 4.14.10-2-MANJARO x86_64 bits: 64
Desktop: Cinnamon 3.6.6 Distro: Manjaro Linux
Machine: Device: laptop System: Hewlett-Packard product: HP EliteBook 8460p v: A0001C02 serial: N/A
Mobo: Hewlett-Packard model: 161C v: KBC Version 97.49 serial: N/A
BIOS: Hewlett-Packard v: 68SCF Ver. F.20 date: 09/29/2011
Battery BAT0: charge: 50.3 Wh 96.2% condition: 52.3/52.3 Wh (100%)
hidpp__0: charge: N/A condition: NA/NA Wh
CPU: Dual core Intel Core i5-2520M (-MT-MCP-) cache: 3072 KB
clock speeds: max: 3200 MHz 1: 2494 MHz 2: 2494 MHz 3: 2494 MHz
4: 2494 MHz
Graphics: Card: Intel 2nd Generation Core Integrated Graphics Controller
Display Server: x11 (X.Org 1.19.6 )
drivers: intel (unloaded: modesetting)
Resolution: 1920x1080@60.00hz, 1920x1080@59.93hz
OpenGL: renderer: Mesa DRI Intel Sandybridge Mobile
version: 3.3 Mesa 17.3.1
Audio: Card-1 Intel 6 Series/C200 Series Family High Def. Audio Controller
driver: snd_hda_intel
Card-2 Microsoft LifeCam VX-1000 driver: USB Audio
Sound: Advanced Linux Sound Architecture v: k4.14.10-2-MANJARO
Network: Card-1: Intel 82579LM Gigabit Network Connection (Lewisville)
driver: e1000e
IF: enp0s25 state: down mac: 10:1f:74:f7:fd:3f
Card-2: Intel Centrino Advanced-N 6205 [Taylor Peak]
driver: iwlwifi
IF: wlo1 state: up mac: 08:11:96:12:f7:44
Drives: HDD Total Size: 258.1GB (56.2% used)
ID-1: /dev/sda model: TOSHIBA_MK2561GS size: 250.1GB
ID-2: USB /dev/sdb model: UDisk size: 8.0GB
Partition: ID-1: / size: 20G used: 11G (59%) fs: ext4 dev: /dev/sda3
ID-2: /home size: 201G used: 116G (61%) fs: ext4 dev: /dev/sda1
ID-3: swap-1 size: 8.88GB used: 0.34GB (4%)
fs: swap dev: /dev/sda2
Sensors: System Temperatures: cpu: 32.0C mobo: 0.0C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 326 Uptime: 3 days Memory: 1373.1/3861.8MB
Client: Shell (bash) inxi: 2.3.53
voila je seche un peu, donc si quelqu un a une idée...
merci beaucoup !!