Ubuntu
linux package

  1. Bug #1871721
  2. Comment #139

Comment 139 for bug 1871721

Revision history for this message
Frederic (meunierf) wrote :

I'm just facing this same issue since today after upgrading 20.04 kernel from 5.8.x to 5.12.6-051206-generic.

Second screen is detected by Nvidia, but black. When I change down the resolution from 1920x1080 to 1280x1024 the 2nd screen reappear. Then if I put back 1920x1080, the screen keeps alive but the refresh rate appears to 59hz in display settings, so screen is blinking. If I manually put the refresh rate to 60hz, the screen works fine until the next reboot. Then I have to start over.

GPU is Nvidia GTX1060 and driver is Nouveau. Proprietary drivers didn't detects the 2nd screen at all.