Recently, I updated system including security, kernel etc.
Suddenly, however, system was frozen when I using Chrome. So I pressed any key but it didn’t respond.
After force reset my laptop, then I booted on kernel 5.19.11, It works well and doesn’t freeze.
Is it the fault of the new kernel? Or not, what did I mistake?
It could be a kernel freeze. Could you look at the journal logs from the boot where the freeze happened please? Hopefully it’ll have some information in there: errors before it all froze.
Unless we can reproduce the freeze, they’re usually quite hard to debug. You have to wait for it to happen again, and then try to debug it—but most of us just use a different kernel version and hope that the freeze goes away in the next update
The boot at 13:22 is likely the restart after the freeze. Thus the last part of the journalctl log for the prior boot should contain entries that may be related to the cause of the freeze.
Maybe if you tried journalctl | grep "Mon 22-10-10 13:" it might give enough info to see what actually was recorded at the time of the freeze.
My system froze yesterday Oct 10) during a system update. I’m now on kernel 5.19.14, so I believe the kernel was the problem. Ctrl-Alt-Del, and a restart and all seems normal…