Hello. I’m running a Librem 13v3 with PureOS, fully updated. The most pressing issue I currently have is screen flickering that is sometimes extremely severe and crashes the system (flickers intensely for a few seconds or minutes, then occasionally fades out the display and locks up; sometimes recoverable through a sleep/wake cycle, other times requires a full restart). Other times it just flickers every few seconds (randomly), and although very annoying, the system remains usable. Here is what I have found:
The issue happens only in some locations. At my home office there is occasional minor flicker, no big deal, but typically no other issue. At my work (I move around various locations on a campus), some rooms tend to be alright, whereas others produce a severe flicker and sometimes crashing on a more frequent basis (not always, but usually. Sometimes less severe flickering). Note that wifi networks may differ between rooms. The point is that the problem seems to be at least correlated with physical location and/or wifi signals.
After testing some variables today, I found that, thus far at least: disabling the wifi via kill switch seems to fix the problem, though I observe that it does not instantanously resolve the flicker, but only after a couple of seconds once “airplane” icon (wifi disabled indicator in PureOS) appears, it seems ok. This suggests to me it is, hopefully, a software issue?
I have already tried the solutions for flickering posted in the wiki / other threads (e.g., disabling i915 options in GRUB config file), but these did not appear to help the issue.
Anyone have this problem? I am hoping the kill switch “solution” will provide a temp fix to make my machine at least usable, but of course I need wifi for my work, so this is not a long-term solution and makes the system effectively unusable.
Thanks for feedback, all.