Bugzilla – Bug 1218393
Weird screen blanking (power mgmt?) issue
Last modified: 2024-05-27 19:47:14 UTC
My screen blanks after screen power mgmt kicks in - as expected. Unfortunately the timer doesn't seem to reset. As long as I move the mouse (even after switching to a console) the screen stays on, once any screen update stops, it goes dark. Currently I to run 'xsnow' !! to keep the screen updating, so it doesn't go dark all the time. This is not fun :-( Where to look? CPU: i7-7700T Graphics: HD 630 P.S.: https://forums.opensuse.org/t/internal-lcd-of-laptop-turning-off-comes-back-on-while-mouse-is-moving-changes-on-screen-happen/170847 -- # VERSION="20231222" ID="opensuse-tumbleweed"
It just hit me again after setting the screen power mgmt timeout to 1 minute to deliberately trigger it. Once screen updates stop it goes dark all the time. After logging off (KDE) it reverted to normal. Unfortunately this is not highly reproducible, but I would really like to avoid buying a new machine.
Instead of running "xsnow" (cpu hog), it is sufficient to run the following "xclock -analog -update 0.13" Increasing the update interval to 0.14 and larger, the problem reoccurs. Interesting: the xclock window doesn't have to be on the laptop's screen, it can be anywhere and it still helps.
Thanks for reporting. Not so easy to debug. At least you have a workaround ...
Could this be retested with current TW, please?
I'll check.
It's still there. I've had a couple of days "peace", but now it's back. It may very well be a hardware defect. I'm getting a lot of these log entries. --- May 27 18:27:14 linux-1p8x kernel: i915 0000:00:02.0: [drm] HPD interrupt storm detected on connector eDP-1: switching from hotplug detection to polling May 27 19:02:47 linux-1p8x kernel: i915 0000:00:02.0: [drm] HPD interrupt storm detected on connector eDP-1: switching from hotplug detection to polling --- Moving the display hinge or shaking the laptop etc. doesn't change anything, nor does it trigger the issue.
Ok. Thanks for the feedback!