I have a 4x4k (3840x2160) workstation with a radeon card, 3x DP and 1x HDMI. Usually everything works fine, but since adding another AppVM which runs many windows I’m having an intermittent issue whereby opening a new window (new browser instance in a running VM, launching a new dispVM, etc) results in a blank UI with only the window decoration showing. My first guess is some sort of graphics memory exhaustion. Dom0 has 4GB of RAM allocated with free showing 1GB availalbe. Graphics card is Radeon RX 7600 with 8GB. System ram is 96GB.
Is there anything I can do to boost the memory allocated to graphics?
On a browser window, the right click menu displays as usual but no other visual elements. Resource exhaustion seems to be confirmed because when I shut down the window heavy AppVM I can launch windows in the other AppVMs normally again.
Did both of these and it hasn’t solved the problem, still reproducible, with excess windows/resource usage within one qube able to DoS other qubes from opening new windows.
Weirdly, closing some of the windows in the resource heavy VM, then opening them again, and I’m not seeing the problem on the other AppVMs any more. Will take a screenshot next time it occurs, but basically every new window (browser, new dispVM, whatever) just has its colored window decoration an a blank background, no normal UI elements. But the browser process still runs, and right clicking somewhere pops the menu up.
Issue just re-occurred but taking a screenshot failed. (Should have thought to use the analog hole.)
Notably the heavy use VM was experiencing disk input/output errors and memory issues and had to be shut down. Shutting it down again solved the problems in other AppVMs.
Yes, are you able to help me debug this. It’s a recurring issue on this machine where sometimes an AppVM will start misbehaving and the cause seems to be I/O errors (touch filename returns an error). The VM must then be restarted. I’ve not discerned any pattern here.