On Mon, 24 Feb 2025 03:05:17 +0100, Hoku Ishibe wrote: > > Dell XPS 13 7390 with the Realtek ALC3271 codec experiences > persistent humming noise when the power_save mode is enabled. > This issue occurs when the codec enters power saving mode, > leading to unwanted noise from the speakers. > > This patch adds the affected model (PCI ID 0x1028:0x0962) to the > power_save denylist to ensure power_save is disabled by default, > preventing power-off related noise issues. > > Steps to Reproduce > 1. Boot the system with `snd_hda_intel` loaded. > 2. Verify that `power_save` mode is enabled: > ```sh > cat /sys/module/snd_hda_intel/parameters/power_save > ```` > output: 10 (default power save timeout) > 3. Wait for the power save timeout > 4. Observe a persistent humming noise from the speakers > 5. Disable `power_save` manually: > ```sh > echo 0 | sudo tee /sys/module/snd_hda_intel/parameters/power_save > ```` > 6. Confirm that the noise disappears immediately. > > This issue has been observed on my system, and this patch > successfully eliminates the unwanted noise. If other users > experience similar issues, additional reports would be helpful. > > > Signed-off-by: Hoku Ishibe <me@xxxxxxxxxxx> Thanks, applied now. But, at the next time, please submit to linux-sound@xxxxxxxxxxxxxxx instead of alsa-devel ML, and put maintainers to Cc. Takashi
