With the Lubuntu-System from USB I tried to find hints in the system logs. My Idea: If there is a firmware- or hardware-problem, there should also Lubuntu have problems - even it can handle them obviously better, since it can boot.
I found “things”, but I am not sure that they are related. Better would be to access the system logs of PureOS - but as far as I see, they are hidden in the crypted SSD. Is there a way to access them?
Here is what I found in the Lubuntu-logs:
kern.log:
Dec 7 21:37:51 lubuntu kernel: [ 74.286670] i915 0000:00:02.0 [drm] *ERROR* CPU pipe A FIFO underrun
syslog:
Dec 7 21:37:14 lubuntu pipewire[1597]: #033[1;31m[E][00000037.906696] [core.c:71 core_event_error()] core 0x55e19a377920: proxy 0x55e19a3537e0 id:4: seq:4 res:-2 (No such file or directory) msg:"can't create device: No such file or directory"#033[0m
Dec 7 21:37:14 lubuntu pipewire[1597]: #033[1;31m[E][00000037.906710] [media-session.c:1935 core_error()] id:4: seq:4 res:-2 (No such file or directory): can't create device: No such file or directory#033[0m
Dec 7 21:37:14 lubuntu pipewire[1581]: #033[1;31m[E][00000037.936945] [alsa-pcm.c:33 spa_alsa_open()] 'dront:0': playback open failed: Device or resource busy#033[0m
Dec 7 21:37:14 lubuntu pipewire[1597]: #033[1;31m[E][00000037.937383] [core.c:71 core_event_error()] core 0x55e19a377920: proxy 0x55e19a47b640 id:39: seq:125 res:-16 (Device or resource busy) msg:"enum params id:3 (Spa:Enum:ParamId:EnumFormat) failed"#033[0m
Dec 7 21:37:14 lubuntu pipewire[1597]: #033[1;31m[E][00000037.937392] [media-session.c:1935 core_error()] id:39: seq:125 res:-16 (Device or resource busy): enum params id:3 (Spa:Enum:ParamId:EnumFormat) failed#033[0m
Any more ideas what to do, to get the laptop running again? Send it back to Purism?