Frozen screen after energy saving, inactivity

xo · 2018-08-23 21:11:11

Hi,
I have Energy Screen Saving on so that the screens turns off after 5 min of inactivity. When I move the mouse or hit a key, the screens turn back on, but the image is frozen. However, when I move the mouse around the cursor will follow, but clicking on anything doesn't appear to do anything. If I hit ctrl+alt+F2 and then ctrl+alt+F1 I can continue. Then whatever I had clicked appears to have been clicked. It doesn't seem to happen on a freshly booted session, but over several hours the freezing starts happening. Seems having firefox open and having watched video on there may trigger it.

How do I go about fixing this?

I'm on 4.17.14-arch1-1-ARCH, KDE Plasma 5.13.4.

Last edited by xo (2018-08-24 02:15:07)

seth · 2018-08-24 06:21:25

Check your xorg log on whether the output unregisters (causing a 0x0 output) and dmesg for error messages from the graphics module.
Since the cursor isn't affected, there's a chance that this is related to the kwin compositor, so simply try toggling that (SHIFT+Alt+F12)

xo · 2018-08-25 08:53:23

I'm still working on recreating the error with compositor off. So far so good, but if the compositor is the problem what can I do other than turning it off?

seth · 2018-08-25 09:59:47

Narrow the issue, see whether it's related to the compositor backend (GL ./. Xrender) and whether turning off all effects (notably blurring) makes an impact.
Then file a bug. Right now, it kinda sounds as if the GL viewport is insufficiently updated, maybe the screen gets lost and added and kwin skips the second event or so.

Arch Linux

#1 2018-08-23 21:11:11

Frozen screen after energy saving, inactivity

#2 2018-08-24 06:21:25

Re: Frozen screen after energy saving, inactivity

#3 2018-08-25 08:53:23

Re: Frozen screen after energy saving, inactivity

#4 2018-08-25 09:59:47

Re: Frozen screen after energy saving, inactivity

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