Since I switched to Ubuntu 19.10, I've been having untimely freezes. Some of them last a few seconds (between 2 and 5 seconds) but others completely block the computer and my only solution is to use the magic keys or to force the shutdown via the shutdown button.
I saw that it could be a kernel regression, nevertheless the proposed solutions were applied, without success.
Are there solutions to this problem?
Information:
Vendor: Lenovo
Model: Legion Y540-15IRH
Linux: 5.3.0-40-generic x86_64
Update:
As recommended by user535733, I looked in /var/log/syslog at a time close to the freeze and this is what I found:
Feb 26 22:07:19 mrsquaare-Legion-Y540-15IRH systemd-udevd[425]: Worker [4654] terminated by signal 9 (KILL)
Feb 26 22:07:19 mrsquaare-Legion-Y540-15IRH systemd-udevd[425]: 0000:01:00.3: Worker [4654] failed
Feb 26 22:07:19 mrsquaare-Legion-Y540-15IRH kernel: [ 1225.182894] BUG: unable to handle page fault for address: ffffae87c02ad000
Feb 26 22:07:19 mrsquaare-Legion-Y540-15IRH kernel: [ 1225.182901] #PF: supervisor read access in kernel mode
Feb 26 22:07:19 mrsquaare-Legion-Y540-15IRH kernel: [ 1225.182904] #PF: error_code(0x0000) - not-present page
[...]
I also redirected dmesg -w to a file before the crash, which also reports the same problem.
