nvidia driver not used

[kmchen]

Hi
During a fresh Kubuntu 18.04 I had a normal screen but after reboot I get a 800x600 screen.

Here are some related data I got, googling:

[FONT=monospace][COLOR=#000000]# cat /etc/issue [/COLOR]
Ubuntu 18.04.5 LTS \n \l 

# uname -r 
4.15.0-128-lowlatency
[/FONT]
# 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

# lshw -c video
*-display NON-RÉCLAMÉ     
   description: VGA compatible controller
   produit: Intel Corporation
   fabriquant: Intel Corporation
   identifiant matériel: 2
   information bus: pci@0000:00:02.0
   version: 02
   bits: 64 bits
   horloge: 33MHz
   fonctionnalités: pciexpress msi pm vga_controller bus_master cap_list
   configuration: latency=0
   ressources: mémoire:64000000-64ffffff mémoire:40000000-4fffffff portE/S:7000(taille=64) mémoire:c0000-dffff
*-display
   description: 3D controller
   produit: NVIDIA Corporation
   fabriquant: NVIDIA Corporation
   identifiant matériel: 0
   information bus: pci@0000:01:00.0
   version: a1
   bits: 64 bits
   horloge: 33MHz
   fonctionnalités: pm msi pciexpress bus_master cap_list rom
   configuration: driver=nvidia latency=0
   ressources: irq:16 mémoire:65000000-65ffffff mémoire:50000000-5fffffff mémoire:60000000-61ffffff portE/S:6000(taille=128) mémoire:66000000-6607ffff

# dkms status 
backport-iwlwifi, 7906, 4.15.0-128-lowlatency, x86_64: installed
nvidia, 455.45.01, 4.15.0-128-lowlatency, x86_64: installed
root@kmcs:/home/kmc# lsmod | grep nvidia
nvidia_uvm            978944  0
nvidia_drm             49152  0
nvidia_modeset       1216512  1 nvidia_drm
nvidia              28192768  2 nvidia_uvm,nvidia_modeset
drm_kms_helper        172032  2 nvidia_drm,i915
drm                   397312  4 drm_kms_helper,nvidia_drm,i915

# lspci -k | grep -A 2 -E "(VGA|3D)"
00:02.0 VGA compatible controller: Intel Corporation Device 9b41 (rev 02)
    Subsystem: Device 1d05:107a
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
--
01:00.0 3D controller: NVIDIA Corporation Device 1d13 (rev a1)
    Subsystem: Device 1d05:107a
    Kernel driver in use: 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[FONT=monospace][COLOR=#000000]# xdpyinfo | grep 'dimensions:' [/COLOR]
[COLOR=#ff5454][B]dimensions:[/B][/COLOR][COLOR=#000000]    800x600 pixels (212x159 millimeters)[/COLOR]
[/FONT]

Hope someone will be able to help

[kmchen]

Lately found that error:

[FONT=monospace][COLOR=#000000]$ sudo modinfo i915|grep -i error [/COLOR]
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)
[/FONT]

[GreyGeek]

Purge your nvidia driver and reboot. The i915 will drive your display.
Install kubuntu-driver-manager and run it.
Take the default option if it has an asterisk in front of an Nvidia driver.

[kmchen]

Thanks for replying.
But I found an answer here https://answers.launchpad.net/ubuntu/+question/694656