[Kernel-packages] [Bug 2081935] Re: Fan control stuck at high speed after upgrade to Ubuntu 24, thermal zone 6 fails to read sensor

Issue Identified: External Monitor Impact on NVIDIA Driver and Fan Control I've identified the issue. When I connect an external monitor via HDMI (for video output) and USB (for power), it forces the NVIDIA driver to handle the connection, which leads to a loss of fan control. Once the fans kick i

[Kernel-packages] [Bug 2081935] Re: Fan control stuck at high speed after upgrade to Ubuntu 24, thermal zone 6 fails to read sensor

If it helps, I’ve gathered some readings while the external monitor is plugged in and the fans are spinning: Output of nvidia-smi: +-+ | NVIDIA-SMI 550.107.02 Driver Version: 550.107.02 C

[Kernel-packages] [Bug 2081935] [NEW] Fan control stuck at high speed after upgrade to Ubuntu 24, thermal zone 6 fails to read sensor

Public bug reported: After upgrading from Ubuntu 22 (kernel 5.x.x) to Ubuntu 24 (kernel 6.8.x), I have encountered an issue with fan control on my Acer Predator PH315-54. The fans get stuck at high speed, even when the system temperatures are relatively low (30-40°C for both CPU and GPU). This pro

[Kernel-packages] [Bug 2081935] Re: Fan control stuck at high speed after upgrade to Ubuntu 24, thermal zone 6 fails to read sensor

Hello Philip, Thank you for looking into this. Please correct me if I'm wrong, but I believe this bug report isn't the cause of my fans being stuck at high speed. It seems more likely to be related to faulty communication between the fan controls and the kernel. I'm happy to provide any reports,