https://bugs.kde.org/show_bug.cgi?id=512155
--- Comment #4 from Jackson <[email protected]> --- Created attachment 187442 --> https://bugs.kde.org/attachment.cgi?id=187442&action=edit drm debug log Thanks for the response, it is appreciated. I wonder why it's only happening on my setup. Using killall -9 kwin_wayland does temporarily fix the issue, acting the same as a restart (i.e., it works properly until the laptop sleeps while not connected to the external monitor, then the problem returns). Well, almost the same: for some reason after the killall command the lock screen won't show a "Sleep" option under the password prompt, only "Switch User" (probably not relevant?). I followed the instructions, hopefully I did it correctly. These are the exact steps I followed: 1. Input into a terminal: > echo 0x1FF | sudo tee /sys/module/drm/parameters/debug 2. Unplugged the monitor from the laptop. (No image appeared on the laptop screen.) 3. Plugged the monitor back into the laptop. (At this point there is no image on the built-in screen or external monitor, which is always the case with this issue; I don't think I made that clear earlier. In this state the computer doesn't seem to even recognize keypresses, e.g., can't switch to virtual terminal.) 4. Put the laptop to sleep by closing the lid. 5. Woke the laptop by opening the lid. (The external monitor now shows an image and I can get past the lock screen.) 6. Input into a terminal: > sudo dmesg -w > drm-debug.log The log is attached, let me know if there's anything else I can provide. -- You are receiving this mail because: You are watching all bug changes.
