I am having issues with sleep on my yoga, it wakes up immediately (according to the logs), but the screen fails to resume:
`[dpu error]connector not connected 3`
`[drm:drm_mode_config_helper_resume] *ERROR* Failed to resume (-22)`
(This can be fixed though by switching to a different VT and back.)
Did anyone run into this issue, is there some misbehaving wakeup source? How could I find out which wakeup source is triggering the wakeup?