Hilary Snaden wrote: > Description: Debian GNU/Linux bullseye/sid > > After a recent kernel update, my previously very stable laptop developed > major problems. After a period usually of about 12 hours (once after only 2 > hours, once after about 36), the machine froze, requiring a hard power > cycle. At no time did desktop indicators (Mate and Xfce) show CPU hogging or > memory shortage. Two more kernel updates did not resolve this problem. There > were frequent flickers of the display. I suspected that the keyboard had > become more sluggish, occasionally missing keystrokes altogether. > > On last starting the machine, I booted using the earliest installed kernel > 5.7.0-3 (5.7.17-1). The first thing I noticed was that the keyboard was > properly responsive again. It has now been running for over 27 hours with > not so much as a missed keystroke. The display has been rock solid again. > > What change in 5.9 (perhaps 5.8) may be caused the machine to freeze, and > can it be fixed?
Could be anything. You are running the unstable version of Debian. You should report it to the Debian kernel maintainers: Debian Kernel Team <debian-ker...@lists.debian.org> -dsr-
