Created attachment 872339 [details]
getappcore output

read-edid-3.0.2-bp155.3.9.x86_64
sles-release-15.5-150500.43.4.x86_64

avocado:~ # get-edid 
This is read-edid version 3.0.2. Prepare for some fun.
Attempting to use i2c interface
Looks like no busses have an EDID. Sorry!
Attempting to use the classical VBE interface
Illegal instruction (core dumped)

avocado:~ # coredumpctl list
TIME                          PID UID GID SIG    COREFILE EXE               
SIZE
Wed 2024-01-31 08:07:15 CET 31656   0   0 SIGILL present  /usr/bin/get-edid
27.3K
Wed 2024-01-31 08:09:05 CET 31755   0   0 SIGILL present  /usr/bin/get-edid
27.3K

avocado:~ # systool -vc drm | grep -P 'Class Device path = .*drm/card'
  Class Device path =
"/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0/card0-VGA-1"
  Class Device path =
"/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0"
  Class Device path =
"/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0/card0-Virtual-1"

avocado:~ # ls -1
/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0/card0*/edid
/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0/card0-VGA-1/edid
/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0/card0-Virtual-1/edid


But, `edid' files do not provide any data, there is no monitor attached to it.

ls -1
/sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/0000:03:00.0/drm/card0/card0*/edid
| xargs -L 1 od -A n -t x1 | wc -l
0