RESOLVED Hello I applied your recommendation by placing nvidia-drm.modeset=1 in etc/default/grub and confirmed with cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-5.13.0-35-generic root=UUID=c8e08c76-0308-495c-8c5a-83f9aa24b1a0 ro nvidia-drm.modeset=1 I replaced the Nvidia 470 driver with the override 510 driver. Also, I did put the video card from PCIE 2 to PCIE 1. Everything works perfectly in X mode and this after a standby or a reboot. DP monitor 1 and VGA monitor 2
I tried the Wayland and had several bugs; general crash or severe screen corruption. Thanks a lot for your help PS if you have ideas for the Wayland mode I'm willing to try. Translated with www.DeepL.com/Translator (free version) Le 2022-03-14 à 22 h 27, Daniel van Vugt a écrit : > ** Changed in: mutter (Ubuntu) > Status: Incomplete => New > > ** Changed in: nvidia-graphics-drivers-470 (Ubuntu) > Status: Incomplete => New > > ** Summary changed: > > - [nvidia] One monitor remains black on startup or resume from sleep > + [nvidia][Xorg] One monitor remains black on startup or resume from sleep > > ** Summary changed: > > - [nvidia][Xorg] One monitor remains black on startup or resume from sleep > + [nvidia][Xorg] One (cloned) monitor remains black on startup or resume from > sleep > -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1964542 Title: [nvidia][Xorg] One (cloned) monitor remains black on startup or resume from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1964542/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
