I have the same issue on a Dell Latitude 5490 running Ubuntu 22.04.1 LTS. The Dell is connected via USB-C to DisplayPort (DisplayPort alt mode) to an external monitor (Dell Alienware aw3821dw). After the screen locks and display went to sleep mode and I return to my desk, the screen always has a resolution of 1024x768 and I can see the following in my syslog:
Nov 25 13:05:03 latitude-5490 kernel: [17418.633249] i915 0000:00:02.0: [drm] *ERROR* failed to enable link training Nov 25 13:04:59 latitude-5490 rtkit-daemon[1842]: message repeated 29 times: [ Supervising 11 threads of 6 processes of 1 users.] Nov 25 13:05:03 latitude-5490 /usr/libexec/gdm-x-session[3009]: (EE) modeset(0): failed to set mode: Invalid argument Nov 25 13:05:03 latitude-5490 /usr/libexec/gdm-x-session[3009]: (EE) modeset(0): failed to set mode: Invalid argument Nov 25 13:05:03 latitude-5490 dbus-daemon[1165]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.100' (uid=1000 pid=3348 comm="/usr/bin/gnome-shell " label="unconfined") Nov 25 13:05:03 latitude-5490 systemd[1]: Starting Fingerprint Authentication Daemon... Nov 25 13:05:03 latitude-5490 dbus-daemon[1165]: [system] Successfully activated service 'net.reactivated.Fprint' Nov 25 13:05:03 latitude-5490 systemd[1]: Started Fingerprint Authentication Daemon. Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (EE) modeset(0): failed to set mode: Invalid argument Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (WW) modeset(0): hotplug event: connector 112's link-state is BAD, tried resetting the current mode. You may be leftwith a black screen if this fails... Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): EDID vendor "DEL", prod id 41343 Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Using hsync ranges from config file Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Using vrefresh ranges from config file Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Printing DDC gathered Modelines: Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Modeline "3840x1600"x0.0 397.40 3840 3888 3920 4000 1600 1603 1608 1656 +hsync -vsync (99.3 kHz eP) Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Modeline "3840x1600"x0.0 566.25 3840 3888 3920 4000 1600 1603 1608 1666 +hsync -vsync (141.6 kHz e) Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e) Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e) Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (II) modeset(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e) Nov 25 13:05:04 latitude-5490 /usr/libexec/gdm-x-session[3009]: (EE) modeset(0): failed to set mode: Invalid argument Nov 25 13:05:04 latitude-5490 gnome-shell[3348]: Failed to use stored monitor configuration: Invalid mode 3840x1600 (59,993961) for monitor 'DEL Dell AW3821DW' Linux latitude-5490 5.15.0-53-generic #59-Ubuntu SMP Mon Oct 17 18:53:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1978980 Title: [amdgpu] Wrong external screen resolution after wake up from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1978980/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
