Running apport-collect did not gather any new information. I wonder if this is because I"m actually using KDE Neon, instead of vanilla Ubuntu? Also, I learned that reboots are affected as well; doing this causes the system to hang just as shutdowns do.
** Description changed: When booting up Ubuntu 18.04 with a kernel version of 5.3.0-52 or later (including 5.3.0-53), everything seems to be working as usual. However, when I shutdown, the system will only soft shutdown, with the CPU still running at full power, forcing me to hold down the power button to fully - power off affected systems. It is not possible for me to collect kernel - logs at this point, unless something wrong is happening in those kernel - versions before the actual shutdown. + power off affected systems. If I reboot, it will cause the system to + hang and not respond. Either way, a hard reset or poweroff will be + required, and this is not an option for systems being remotely accessed. + It is not possible for me to collect kernel logs at this point, unless + something wrong is happening in those kernel versions before the actual + shutdown. It is possible that this may also occur on Ubuntu 20.04 with kernel versions 5.4.0-29 and later, but I have not yet tested this out. This problem is occurring on both my desktop and laptop computers which respectively are: * AsRock B450 Pro4 with AMD Ryzen 3 3200G APU * Lenovo ThinkPad A485 with AMD Ryzen 5 Pro 2500U mobile APU In the meantime, I am stuck on kernel version 5.3.0-51, as that is the last working 5.3.x kernel version offered in the standard Ubuntu repositories that doesn't have this problem, without me having to use PPAs. I don't know if this problem also occurs on systems with Intel CPUs, as I don't own any recently-made system (last 3 years from 2017) with such CPUs to test if this problem occurs on them. ** Summary changed: - Failing to shutdown/power off on AMD Ryzen CPUs on kernel versions 5.3.0-52 and later + Failing to shutdown/power off or reboot on AMD Ryzen CPUs on kernel versions 5.3.0-52 and later -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880041 Title: Failing to shutdown/power off or reboot on AMD Ryzen CPUs on kernel versions 5.3.0-52 and later To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe/+bug/1880041/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
