Window border glitches after resize
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- Dominant language
- C
- Stars
- 858
- Forks
- 112
- Avg merge
- 1d 13h
- Merged PRs (30d)
- 4
Description
I've encountered strange behavior while writing tiling window manager using Nano-X. When I resize windows, sometimes old border remains on the screen.
Before resize:

After:

Notably this happens only when I increase left window size, but not right.
Here is a simple program to reproduce: https://git.flygrounder.ru/flygrounder/microwindows-border-bug/src/branch/master/src/main.c
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked reproducer at src/main.c and run it under the Nano-X Window System. Compare resizing the left and right windows, focusing on when the old border remains visible. Done means the reproduced resize no longer leaves a stale border on screen.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- operating-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100