"Low Blue Light" monitor panel setting not honored via HDMI, works with DP
Brief summary of the problem:
When using dual Lenovo ThinkVision P24q-20 monitors, the HDMI connected panel does not honor the panel setting of "Low Blue Light". The DisplayPort connected panel does honor this setting. Going into the settings on the panel itself and re-selecting "Low Blue Light" temporarily fixes the issue until a system reboot.
Hardware description:
- CPU: AMD Ryzen 3 PRO 5350GE with Radeon Graphics
- GPU: Advanced Micro Devices, Inc. [AMD/ATI] Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] [1002:1638] (rev dd)
- System Memory: 4GB
- Display(s): (2x) Lenovo ThinkVision P24q-20 on firmware "LB1.2"
- Type of Display Connection: DisplayPort & HDMI
System information:
- Distro name and Version: Fedora 39 Workstation
- Kernel version: Linux 6.6.9-200.fc39.x86_64 #1 (closed) SMP PREEMPT_DYNAMIC Mon Jan 1 20:05:54 UTC 2024 x86_64 GNU/Linux
- Custom kernel: N/A
- AMD official driver version: N/A
How to reproduce the issue:
Boot system up. DisplayPort connected monitor is correctly honoring "low blue light" built-in panel setting, and display visually is much more "red". HDMI connected monitor does not honor setting, display visually is much more "blue".
Attached files:
Screenshots/video files
Log files (for system lockups / game freezes / crashes)
Edited by packetwar