** Package changed: ubuntu => nvidia-graphics-drivers-435 (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-435 in Ubuntu. https://bugs.launchpad.net/bugs/1882422
Title: xorg fails to load nvidia driver on switching to greeter / black screen blinking cursor with lightdm light-locker Status in nvidia-graphics-drivers-435 package in Ubuntu: New Bug description: System: - Xubuntu 18.04.4, signle seat, single monitor - NVidia 1050ti driver 435.21 - lightdm 1.26.0 - slick-greeter Scenario 1: No xorg.conf. I use 'light-locker-command --lock' or 'dm- tool --lock' or 'dm-tool switch-to-greeter', screen goes black with blinking cursor at top left corner. No keyboard response, only power reset helps. Scenario 2: xorg.conf generated with nvidia tool. After attempting to lock screen same blinking cursor appears, but now if I press Alt-F7 it stops blinking, then Ctrl-Alt-F1, login, sudo systemctl restart lightdm and it's alive and loginable again. In the lightdm.log I see repeating sequence (approx 5 times a second): [+61.67s] DEBUG: Seat seat0: Creating greeter session [+61.67s] DEBUG: Seat seat0: Creating display server of type x [+61.67s] DEBUG: Using VT 8 [+61.67s] DEBUG: Seat seat0: Starting local X display on VT 8 [+61.67s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log [+61.67s] DEBUG: XServer 1: Writing X server authority to /var/run/lightdm/root/:1 [+61.67s] DEBUG: XServer 1: Launching X Server [+61.67s] DEBUG: Launching process 3301: /usr/bin/X -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch [+61.67s] DEBUG: XServer 1: Waiting for ready signal from X server :1 [+61.96s] DEBUG: Process 3301 terminated with signal 6 [+61.96s] DEBUG: XServer 1: X server stopped [+61.96s] DEBUG: Releasing VT 8 [+61.96s] DEBUG: XServer 1: Removing X server authority /var/run/lightdm/root/:1 [+61.96s] DEBUG: Seat seat0: Display server stopped [+61.96s] DEBUG: Seat seat0: Stopping session [+61.96s] DEBUG: Seat seat0: Session stopped [+61.96s] DEBUG: Seat seat0: Stopping display server, no sessions require it [+61.96s] DEBUG: Seat seat0: Active display server stopped, starting greeter x-1.log says: X.Org X Server 1.19.6 Release Date: 2017-12-20 X Protocol Version 11, Revision 0 Build Operating System: Linux 4.4.0-148-generic x86_64 Ubuntu Current Operating System: Linux dmitry-desktop 4.15.0-101-generic #102-Ubuntu SMP Mon May 11 10:07:26 UTC 2020 x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-101-generic root=UUID=7f607ead-1d84-40ec-a3b6-3b78b946bb03 ro noquiet nosplash Build Date: 03 June 2019 08:10:35AM xorg-server 2:1.19.6-1ubuntu4.3 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.34.0 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.1.log", Time: Fri Jun 5 15:46:42 2020 (==) Using config file: "/etc/X11/xorg.conf" (==) Using system config directory "/usr/share/X11/xorg.conf.d" vesa: Ignoring device with a bound kernel driver (EE) Fatal server error: (EE) no screens found(EE) (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. (EE) Please also check the log file at "/var/log/Xorg.1.log" for additional information. (EE) (EE) Server terminated with error (1). Closing log file. Xorg.1.log says: ... [ 129.447] (II) LoadModule: "nvidia" [ 129.447] (WW) Warning, couldn't open module nvidia [ 129.447] (II) UnloadModule: "nvidia" [ 129.447] (II) Unloading nvidia [ 129.447] (EE) Failed to load module "nvidia" (module does not exist, 0) [ 129.447] (==) Matched nouveau as autoconfigured driver 0 [ 129.447] (==) Matched modesetting as autoconfigured driver 1 [ 129.447] (==) Matched fbdev as autoconfigured driver 2 [ 129.447] (==) Matched vesa as autoconfigured driver 3 [ 129.447] (==) Assigned the driver to the xf86ConfigLayout [ 129.447] (II) LoadModule: "nouveau" ... In my case solution was to add following to xorg.conf to make Xorg load proper nvidia driver: Section "Files" ModulePath "/usr/lib/xorg/modules,/usr/lib/x86_64-linux-gnu/nvidia/xorg/" EndSection I'm not sure which package is responsible for that configuration and how it is done within modern approach, but I think things like this must be done automatically by one of nvidia drivers packages (xserver- xorg-video-nvidia-435 for example). Original discussion: https://github.com/canonical/lightdm/issues/103 Possibly related: https://github.com/the-cavalry/light-locker/issues/77 https://github.com/the-cavalry/light-locker/issues/114 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-435/+bug/1882422/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
