[Bug 2148734] Re: AMD Radeon 780M generates constant drm events on battery

** Description changed: Hardware: +       Laptop: ASUS Vivobook 18 M1807HA - - Laptop: ASUS Vivobook 18 M1807HA +       GPU: AMD Radeon 780M (integrated) - - GPU: AMD Radeon 780M (integrated) +       CPU: AMD Ryzen 7 260 - - CPU: AMD Ryzen 7 260 +       Kernel: 6.17.0-20-generic - - Kernel: 6.17.0-20-generic - - - Distribution: Ubuntu 24.04 +       Distribution: Ubuntu 24.04 Issue: When running on battery power, the GPU generates constant drm/card1 change events every 30-40 seconds, triggering device notification sounds in GNOME. - Steps to reproduce: +       Unplug AC adapter - - Unplug AC adapter +       Run sudo udevadm monitor - - Run sudo udevadm monitor - - - - Observe constant KERNEL change /devices/.../drm/card1 (drm) events +       Observe constant KERNEL change /devices/.../drm/card1 (drm) events Observations: +       Only happens on battery power - - Only happens on battery power +       Does not happen when AC adapter is plugged in - - Does not happen when AC adapter is plugged in - - - power_dpm_force_performance_level remains unchanged during events - - Setting amdgpu.runpm=0 does not resolve the issue +       Setting amdgpu.runpm=0 does not resolve the issue - - No error messages in dmesg +       No error messages in dmesg Expected behavior: GPU should not generate constant change events on battery power. Logs: - Output of 'sudo udevadm monitor' while on battery: - KERNEL[1192.228486] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) UDEV [1192.261376] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) KERNEL[1231.346665] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) UDEV [1231.370399] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) + Output of `sudo udevadm monitor` while on battery: + ``` + KERNEL[1192.228486] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) + UDEV [1192.261376] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) + KERNEL[1231.346665] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) + UDEV [1231.370399] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) + ``` - These events repeat every 60-120 seconds continuously while unplugged. No such events occur when AC adapter is connected. + These events repeat every 60-120 seconds continuously while unplugged. + No such events occur when AC adapter is connected. -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2148734 Title: AMD Radeon 780M generates constant drm events on battery Status in linux package in Ubuntu: New Bug description: Hardware:       Laptop: ASUS Vivobook 18 M1807HA       GPU: AMD Radeon 780M (integrated)       CPU: AMD Ryzen 7 260       Kernel: 6.17.0-20-generic       Distribution: Ubuntu 24.04 Issue: When running on battery power, the GPU generates constant drm/card1 change events every 30-40 seconds, triggering device notification sounds in GNOME. Steps to reproduce:       Unplug AC adapter       Run sudo udevadm monitor       Observe constant KERNEL change /devices/.../drm/card1 (drm) events Observations:       Only happens on battery power       Does not happen when AC adapter is plugged in power_dpm_force_performance_level remains unchanged during events       Setting amdgpu.runpm=0 does not resolve the issue       No error messages in dmesg Expected behavior: GPU should not generate constant change events on battery power. Logs: Output of `sudo udevadm monitor` while on battery: ``` KERNEL[1192.228486] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) UDEV [1192.261376] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) KERNEL[1231.346665] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) UDEV [1231.370399] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) ``` These events repeat every 60-120 seconds continuously while unplugged. No such events occur when AC adapter is connected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2148734/+subscriptions