Viewing topic Strange monitor / desktop resume problem

Strange monitor / desktop resume problem

robvv Jul 25

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My System Info

Linux Distribution: OpenSUSE Tumbleweed
Desktop Environment: KDE Plasma 6 / Wayland
Graphics Card: Nvidia GTX 1660 Ti
GPU Driver Version: 560.28.03

Have you checked for system updates?: [Yes/No] Yes

If this is not Steam, you can still give us a system readout using inxi with "inxi -SbCGxx" in terminal (please put that into Pastebin/Gist as linked above!):
https://gist.github.com/monstoor/ac64f1f2305ea8506484b527553bd3ea

You can note your issue below here
After my old monitor packed up recently, I installed a shiny new Dell Alienware AW2524F monitor, which has a maximum refresh rate of 500Hz.

All went well initially, and I have tried out a couple of the higher refresh rates (360Hz and 480Hz) which seemed to work fine with my GPU and Plasma 6 desktop. However, I have noticed that after I switch off my monitor but leave the PC running I cannot get the desktop to resume.

When I switch the monitor back on I get a 'no signal' message and the screen is blank. If I Ctrl-Alt-F1 I can get a terminal at 60Hz. I can then switch back to the desktop via Ctrl-Alt-F2 where I only see a mouse cursor and black screen but the desktop has seemingly crashed. If I Ctrl-Alt-Backspace I get get back to the log-in screen.

Power-related settings are all disabled.

I am guessing that something is wrong with the signal when I switch the monitor back on, but can anyone help me with this problem? Let me know if you need any more information.

Cheers!

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kokoko3k Jul 25

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It would be helpful to read logs/journald output from when the problem arises.

Also, switching between Xorg and Wayland may (/not) workaround the issue.

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robvv Jul 25

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View PC info

Quoting: kokoko3kIt would be helpful to read logs/journald output from when the problem arises.

Thanks for the reply. Here's what the journalctl log shows from that time period. I found that switching tty also triggers the crash without switching off the monitor. I did this at around 21:01.

There are a lot of roccateventhandler entries, of which I've deleted most. My keyboard and mouse function fine so I'm not sure what this error actually means.

Any help would be much appreciated.

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kokoko3k Jul 26

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There are a lot of
usb7-4: reset full-speed USB device events, probably unrelated.

Also, the log appears to be redacted, can you post full log just from a session like: "boot, turn off monitor, turn it back on"?

Also, try with Xorg to see if the issue remain.

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