Created attachment 152100 [details] kscreen-kwin black screen with HDMI SUMMARY Sometimes when connecting an external monitor or TV via HDMI I get a black screen where only cursor is visible (and it's changing as if it's really hovering over different UI elements!) Today it's consistent. Every time I plug in HDMI cable, the screen turns black like that. But when I disconnect it, everything returns to normal — except windows' geometries: they mostly become when thin vertically. I collected journal logs with KWin debugging enabled. STEPS TO REPRODUCE 1. Connect HDMI cable. 2. Feel despair. 3. Disconnect HDMI cable. OBSERVED RESULT Black screen when connected, messed up window layout after disconnection. EXPECTED RESULT Second monitor is connected as normal. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE: git-master Qt Version: 5.15.6 Kernel Version: 5.19.8-arch1-1 (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 970M/PCIe/SSE2 Manufacturer: ASUSTeK COMPUTER INC. Product Name: G752VT System Version: 1.0 ADDITIONAL INFORMATION (attaching detailed graphics information in second post, because bugzilla)
Created attachment 152101 [details] detailed information -> graphics Attaching detailed information from KInfoCenter
Does https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/2125 partially fix the bug? Will a panel show up after applying the patch?
Can you try again today? Some other NVIDIA fixes landed yesterday too. Is this a regression?
It didn't get better, and in fact it happened again with DisplayPort too.
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
Hi, i also thought i have this bug but noo, if you see mouse, you see it on extended monitor. Go to monitor settings and make them duplicate if you want them both to show the same thing. Mouse seeing means its working and your background is black (dark mode) picture. Check it Original Poster OP
Ivan, did the big multiscreen refactor (that you worked on! :) ) fix this?