I am using Manjaro for two years now on a Lenovo Ideapad with AMD Ryzen 4700, 16 GB RAM and always the latest kernel (5.17.1-AMD-znver2). It is a consumer-convertible but I used it intensively as a SOHO device during the pandemic.
In the last 3-4 months, I observe an increasing number of sudden “freezings” of the laptop: No keyboard, no mouse, no network interaction any more - and the screen frozen but not black: I have to power off and to restart the system.
Furthermore, I observe sometimes an erroneous pixel on my screen, that persist until I restart the computer. The first time, this happened, I thought the display-hw is broken. But since it vanished after restart, I suppose it is either a procssing-HW (aged RAM?) or SW problem.
In my perception, the frequency of these incidents is increasing: IIRC the first time happened in November/December 2021 and once in a month, now I observe it every 4-5 days.
Since the warranty ends in May, I want to start to do some forensics on the hardware. Can anybody help me, how to log the moment, when the system crashes as well as where to look and how to analyze the loggings?
Thank you very much & kind regards,
$ inxi CPU: 8-core AMD Ryzen 7 4700U with Radeon Graphics (-MCP-) speed/min/max: 1522/1400/2000 MHz Kernel: 5.17.1-AMD-znver2 x86_64 Up: 1h 55m Mem: 8561.3/15374.0 MiB (55.7%) Storage: 953.87 GiB (69.6% used) Procs: 425 Shell: Zsh inxi: 3.3.14