(In reply to Another User from comment #463) > I have random freezes with Ryzen 2200u laptop. Display image just freezes > and system stops responding. Only way to get out from this state is to > holding power button (even magic SysRq key does not work). No any clues in > logs. > > With Ubuntu 18.04 it was happen nearly once per week (not intense use). > After installing 18.10 things become more stable - I've got first lockup > after 6 weeks and another after 3. Hangs are completely random and on > different cpu load - once I've got this while gaming (and ambient noise > continue playing...) > > I've tried idle=nomwait but this did not help on 18.04 - and line > "monitor-mwait will be used for idle loop" was still present in dmesg with > this parameter! > > idle=halt parameter completely disables mwait instruction in kernel and also > forces use of only C1 state. In my laptop it does not cause higher battery > drain or any suspend-resume issues. But I've not tested it completely an > used it for few days... So this may be even not the solution for my problem.
You freeze seems GPU related, try a new kernel/firmware -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
