Comment 5 for bug 2031198

Revision history for this message
Bruce Goodwin (bgoodwin) wrote : Re: Boots to black after upgrade to 22.04, Cannot use other TTY interfaces either (ctrl+alt+f2, etc)

New behavior! + additions to the "things I've tried" list!
* adding nvidia-drm.modeset=0 to the kernel args at the grub menu
  * Backlight stays on, I can switch to ctrl+alt+F2
  * On TTY 2, it looks like abit of kernel log is displayed: "ACPI region does not cover the entire command/response buffer. [mem 0xfed40000-0xfed4087f flags 0x200] vs fed40080 f80"
  * On a whim, I decided to go back to ctrl+alt+F1, which no longer had the backlight on, but pretended there was a (gdm3?) login screen there, and hit enter + <password for default user>.... THIS Got me into x11/gnome!
  * possibly this would have worked all along? Not great because its not apparent you can do anything. but better than...

* adding nvidia-drm.modeset=1 to the kernel args at the grub menu
  * the login screen appears! hit enter + <password for default user> to log in...
  * Back to the old behavior. - No graphics, backlight or ability to switch to another TTY