** Tags added: kernel-daily-bug -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2121993
Title: BUG: CPU soft lockup on resume from hibernation with amdgpu on AMD 7900XTX GPU Status in linux package in Ubuntu: New Bug description: Description I am consistently experiencing a critical issue where the system fails to properly resume from hibernation. The process is extremely slow and results in only one of my two monitors waking up. The system then becomes mostly unresponsive, and logs show a soft lockup. Steps to Reproduce Set up the system with hibernation enabled and configured (swap partition or swapfile is used and correctly configured in GRUB). Hibernate the system. Power the system back on to resume. Expected Behavior The system should resume from hibernation within a reasonable timeframe (a few seconds) and restore the full desktop environment across both monitors. Actual Behavior The resume process is extremely slow (over 20 seconds). After the desktop appears, only one monitor wakes up, and the system is largely unresponsive. System Information Operating System: Kubuntu 25.04 Kernel Version: 6.14.0-29-generic CPU: AMD Ryzen 9 7950X GPU: AMD Radeon RX 7900 XTX Motherboard: MSI PRO X670-P WIFI (MS-7D67), BIOS 1.M0 05/14/2025 Relevant Log Excerpts journalctl -b -1 shows a soft lockup in the kernel related to the amdgpu driver during a display commit operation. The log points to a specific function dcn32_smu_wait_get_hard_min_status getting stuck. Sep 03 17:03:50 control kernel: watchdog: BUG: soft lockup - CPU#15 stuck for 21s! [kwin_wayland:2358] ... (rest of the log) Sep 03 17:03:50 control kernel: Call Trace: ... Sep 03 17:03:50 control kernel: dcn32_smu_wait_get_hard_min_status+0x50/0x2c0 [amdgpu] ... Sep 03 17:03:50 control kernel: amdgpu_dm_atomic_commit_tail+0xda/0x1230 [amdgpu] ... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2121993/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
