Continuing the discussion from Brightness control missing in LTS. External display. Keeps resetting:
Ubuntu Support Template
Ubuntu Version:
Example: 22.04 LTS, 24.04, 25.10
Desktop Environment (if applicable):
Example: GNOME, KDE Plasma, XFCE, Budgie, etc.
Problem Description:
Describe what you’re trying to do and what happens instead.
If you can easily reproduce the problem, include the steps so others can try.
Example:
Open Settings → Displays
Try to change resolution
Screen goes black
Relevant System Information:
Include any details that might help (e.g., hardware, drivers, or special configurations).
Screenshots or Error Messages:
If applicable, paste error messages or screenshots.
We prefer copy-pasted text and screenshots instead of photos of screens.
For multi-line text or logs, wrap them in triple backticks like this or highlight the text and use </> in the composer:
sudo dmesg | tail -20
What I’ve Tried:
List the solutions or workarounds you’ve already attempted.
Before Posting:
Please check if similar issues have already been reported and resolved.
See the “Start here” guide:
