(In reply to Charles Lim from comment #673) > For those who are looking for a solution or already found a solution, there > is a new update of AGESA rolling out. The new version 1.0.0.4 claims: > > * Improved system stability when switching through ACPI power states. > > It has arrived on my Asus PRIME B350M days ago, I have upgraded and kept > default optimised BIOS settings. When I used ZenState to check cpu status, > the C6 state is now: > > C6 State - Package - Enabled > C6 State - Core - Disabled > > Previously they were all enabled, I guessed the new AGESA release finally > solved this problem from source? I will report back days later to see if the > system still hangs.
Are you sure about the AGESA version string? For the Dell OptiPlex 5055, firmware version 1.1.20 [1], running it through *Dell PFS BIOS Extractor*, and then grepping for `AGESA!` in the strings/hexdump, it says it includes AGESA version 1.0.0.7a. $ strings 1\ --\ 1\ OptiPlex\ System\ BIOS\ v1.1.20.bin | grep -A1 AGESA! %pAGESA!V9 SummitPI-AM4 1.0.0.7a [1]: https://www.dell.com/support/home/de-de/drivers/driversdetails?driverid=w6mw5&oscode=wt64a&productcode=optiplex-5055-ryzen-cpu [2]: https://github.com/platomav/BIOSUtilities -- 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