| Summary: | Dragging the Firefox window between screens with mixed DPI makes the window flicker on releasing it | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | postix <postix> |
| Component: | effects-overview | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | REPORTED --- | ||
| Severity: | normal | CC: | nate, postix |
| Priority: | NOR | Keywords: | multiscreen, wayland |
| Version: | 5.27.4 | ||
| Target Milestone: | --- | ||
| Platform: | openSUSE | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Attachments: |
Screen recording
kWin Support Info Screen recording: Moving Firefox, OBS and Kate in normal mode |
||
Created attachment 149803 [details]
kWin Support Info
You have a mixed dpi setup and firefox moves between outputs with different scale factors. Are there visible visual changes when firefox moves between outputs in normal mode, i.e. when not running overview? If so, this needs to be fixed in firefox. Also, does it happen with other apps? Created attachment 149847 [details] Screen recording: Moving Firefox, OBS and Kate in normal mode (In reply to Vlad Zahorodnii from comment #2) > You have a mixed dpi setup and firefox moves between outputs with different > scale factors. Are there visible visual changes when firefox moves between > outputs in normal mode, i.e. when not running overview? If so, this needs to > be fixed in firefox. Also, does it happen with other apps? Yes, there are visual issues when moving Firefox and OBS between the mixed DPI screens, all other apps I use/tested were fine though. (Which does not mean that there are more). Please see the screen recording. I do not however see this issue with OBS in the overview effect when moving its window. Interestingly I made the exact same observation for this issue, which I made in [1] left A: 1920x1080 screen right B: 3840x2160 screen (primary) on Plasma 5.25.2 Wayland Scaling of A / B: 100 / 200: issue appears 125 / 200: fine 150 / 200: fine 175 / 200: fine 200 / 200: fine 225 / 200: issue appears 250 / 200: issue appears 275 / 200: issue appears 300 / 200: issue appears [1] https://bugs.kde.org/show_bug.cgi?id=432264#c27 Still flickers, yet it looks little bit different and only occurs when dragging from the 4k@200% (primary, right) to the 2k@100% screen. |
Created attachment 149802 [details] Screen recording SUMMARY Moving the Firefox window between screens by drag and drop makes the Firefox window flicker annoyingly. STEPS TO REPRODUCE Please see the screen recording. SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20220613 KDE Plasma Version: 5.25.0 KDE Frameworks Version: 5.94.0 Qt Version: 5.15.2 Kernel Version: 5.18.2-1-default (64-bit) Graphics Platform: Wayland Graphics Processor: AMD Radeon RX 580 Series