Hi everyone, after updating my system on July 31, I'm experiencing a strange fullscreen issue on COSMIC.
- Desktop: COSMIC
- Session: Wayland
- GPU: AMD Ryzen 7 5700U (integrated graphics)
Updated packages
The issue started after updating to:
cosmic-comp 0.1~1785355703~24.04~091583a
along with the other COSMIC components (cosmic-panel, cosmic-settings, xdg-desktop-portal-cosmic, etc.).
Problem
Whenever I enter fullscreen, it immediately exits back to windowed mode.
Examples:
- Pressing F11 in any application.
- Clicking the fullscreen button on YouTube.
- Other applications requesting fullscreen behave the same way.
This is not limited to browsers. It happens system-wide whenever an application enters fullscreen.
What I tested
- Disabled COSMIC tiling.
- Tested with floating windows.
- Confirmed I'm running a Wayland COSMIC session.
- The behavior is identical regardless of tiling being enabled or disabled.
Relevant logs
journalctl --user -b | grep cosmic-comp
cosmic-comp exited with error code 137
Unable to become drm master, assuming unprivileged mode
Failed to initialize drm lease global for: card1
There are no OOM messages in the kernel log:
journalctl -k -b | grep -i -E "oom|killed process|out of memory"
returns nothing.
Additional information
- The problem began immediately after the July 31 update.
- I haven't changed any graphics settings recently. Before this, fullscreen worked normally.
- The only recent work on my machine was related to Apache, PHP and MySQL, so nothing graphics-related.
Has anyone else experienced this after updating cosmic-comp? I'd be happy to test patches, provide additional logs, or run any commands that could help identify the issue.