SE8 ubuntu linux

ffaucheuxfr

Hi,


I have an issue with SEI8 on ubuntu linux 21.10.
I'm unable to use two hdmi screens.
I try to use previous 20.4 ubuntu version without any succes.



On windows 10, no issue. The two screens are perfecly working.



I have no sound but i find a solution thru an external USB sound card.

Thank's for your help.

Francois

ffaucheuxfr

Hi,

Thank's to the support.
The issue is now solved.

To have  two screens on ubuntu linux, you have to boot into EFI mode.

Greetings

Francois

ffaucheuxfr

Same issue with the 20.04 version than that the 21.10.

Only one screen is working

The two screens are identical (iiyama prolite X2483HSU)/

greetings
francois@francois:~$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 296mm
  1920x1080     60.00*+  50.00    59.94   
  1920x1080i    60.00    50.00    59.94   
  1600x1200     60.00   
  1680x1050     59.88   
  1280x1024     75.02    60.02   
  1440x900      59.90   
  1280x960      60.00   
  1152x864      75.00   
  1280x720      60.00    50.00    59.94   
  1024x768      75.03    60.00   
  832x624       74.55   
  800x600       75.00    60.32   
  720x576       50.00   
  720x576i      50.00   
  720x480       60.00    59.94   
  720x480i      60.00    59.94   
  640x480       75.00    60.00    59.94   
  720x400       70.08  

ffaucheuxfr

Hi,

As support said, i upgrade the ubuntu kernel version to 5.15.13-051513-generic witch is the latest one.
No change, still one screen.

Is someone have another idea ?

Greetings

Francois

ffaucheuxfr

Hi,

As support said it could be a kernel version issue, I update the ubuntu 21.10 kernel version to 5.15.13-051513-generic.

No modification. Still only one screen is running.

Is someone have another idea ?

Greetings