Looking into the changelog in 20260319.git217ca6e4-0ubuntu3.1[1], none of the firmware files are for Krackan. DMCUB update is for Rembrant and GC firmware is for Phoenix/Hawk Point.
If possible, can you attach the following logs? 1. journalctl -b -1 after you reboot from a hang 2. Run the amd-s2idle[2] and attach the report 3. Output of /sys/kernel/debug/dri/<n>/amdgpu_firmware_info, where <n> is the card number of your amd gpu in the Linux (it's usually 1) [1] https://launchpad.net/ubuntu/+source/linux-firmware-amd-graphics/20260319.git217ca6e4-0ubuntu3.1 [2] https://github.com/superm1/amd-debug-tools/tree/master -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2162104 Title: linux-firmware-amd-graphics 0ubuntu3.1 DMCUB fix causes suspend hang on Krackan APU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware-amd-graphics/+bug/2162104/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
