Pendant l'installation d'un kubuntu 18.04 j'avais un écran normal mais après le reboot je me retrouve avec un écran 800x600.
Voici quelques éléments trouvés avec l'ami gg:
# cat /etc/issue
Ubuntu 18.04.5 LTS \n \l
# uname -r
4.15.0-128-lowlatency
# lspci -vnn | grep -A12 '\''[030[02]\]' | grep -Ei "vga|3d|display|kernel"
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:9b41] (rev 02) (prog-if 00 [VGA controller])
01:00.0 3D controller [0302]: NVIDIA Corporation Device [10de:1d13] (rev a1)
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
# nvidia-settings
ERROR: Unable to load info from any available system
(nvidia-settings:4258): GLib-GObject-CRITICAL **: 02:29:05.228: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
** Message: 02:29:05.230: PRIME: No offloading required. Abort
** Message: 02:29:05.230: PRIME: is it supported? no
# lsmod|grep i915
i915 1622016 0
i2c_algo_bit 16384 1 i915
drm_kms_helper 172032 2 nvidia_drm,i915
drm 397312 4 drm_kms_helper,nvidia_drm,i915
video 45056 1 i915# xdpyinfo | grep 'dimensions:'
dimensions: 800x600 pixels (212x159 millimeters)
Dernièrement j'ai trouvé un message d'erreur
$ sudo modinfo i915|grep -i error
parm: error_capture:Record the GPU state following a hang. This information in /sys/class/drm/card<N>/error is vital for triaging and debugging hangs. (bool)
parm: inject_load_failure:Force an error after a number of failure check points (0:disabled (default), N:force failure at the Nth failure check point) (uint)