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I am trying to track down the cause of crashes on a fairly new PC. Every couple of weeks there is an episode where the mouse cursor freezes, the computer becomes unresponsive and after a few seconds the screen goes black. I suspect, though I do not know how to prove it that this is a graphics driver issue. The graphics card is a Radeon RX 6600. I am running Slackware 15 with multilib up to date with slackpkg. I use kde. My impression is that switching to Wayland reduced the frequency of crashes but not sure. I can be doing anything when the crash occurs. Memtest does not show any problems.
I haven't found anything that I found helpful in any logs but perhaps I don't know what I'm looking for.
Is there any particular thing I should be looking for?
Are there any known issues with Radeon and Linux? I had thought this kernel 5.15.145 worked well with Radeon.
I'm on similar kit with the RX 6600XT. I ran Slackware64 & Multilib for two years on 5.15.63. No issues at all.
Keep an eye on /var/log/syslog, and htop while running. When it freezes, switch to the htop window. Another trick is to set yourself on runlevel 3, & use startx. Then, when it hangs, hit Ctrl_Alt_F1 and look for output.
If your PC is new, I suggest you to use a recent kernel. When I bought my current PC, I had several hardware bugs even with latest kernel (5.12 at the time). I had to wait for 5.14 to have stable drivers.
. I had these with crashes (Ryzen/AMD/Radeon HD 8570) as you describe ~ 2 days - 1 or 2 weeks without warning. Moving to Wayland, I've only had one of those since Feb. The system stays up until I shut it down for a new kernel. This was across multiple Mesa versions, kernel version, window managers, etc. The only constant was amdgpu. The other is the well-known RCU no callbacks issue, which is already documented online in various places.
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