I login my system from SSH, and watch the udevadm monitor, those log is printing right before the screen wake up:
```plaintext monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent KERNEL[1095.780845] change /devices/pci0000:00/0000:00:02.0/drm/card1 (drm) UDEV [1095.808801] change /devices/pci0000:00/0000:00:02.0/drm/card1 (drm) KERNEL[1096.322808] change /devices/pci0000:00/0000:00:02.0/drm/card1 (drm) UDEV [1096.329510] change /devices/pci0000:00/0000:00:02.0/drm/card1 (drm) ``` By the way, I don't have a discrete graphics card. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971434 Title: Display powersave only blanks, but does not turn off To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1971434/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
