| Summary: | Severe graphical glitches on 21:9 monitor using a AMD GPU ( both mesa and propretary ) | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | kdeneon |
| Component: | egl | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED UPSTREAM | ||
| Severity: | normal | CC: | kde, kde, nate |
| Priority: | NOR | Flags: | vlad.zahorodnii:
Wayland+
|
| Version: | 5.16.4 | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| URL: | https://bugs.freedesktop.org/show_bug.cgi?id=102646 | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: | Graphical glitch KDE on 21:9 monitor | ||
|
Description
kdeneon
2019-08-19 19:26:14 UTC
Can you be more specific about those glitches? I've been using an LG 29EA93 21:9 screen without a problem. How did you connect the screen? I assume it's 2560x1080 which exceeds the 1920x1080 supported by standard DVI and VGA cables. Does this happen on other desktops, too? I don't think this is a problem on KDE's side. (In reply to Kai Uwe Broulik from comment #1) > Can you be more specific about those glitches? I've been using an LG 29EA93 > 21:9 screen without a problem. > How did you connect the screen? I assume it's 2560x1080 which exceeds the > 1920x1080 supported by standard DVI and VGA cables. > Does this happen on other desktops, too? I don't think this is a problem on > KDE's side. The monitor has only HDMI so I use that. No issues on Ubuntu 18.04,Fedora 18.04 or Windows 10 1809 I added a video to describe the problem Created attachment 122272 [details]
Graphical glitch KDE on 21:9 monitor
Interesting. I've seen similar glitches on one of my 4K screens, the one plugged in via HDMI. I still think this is a cable issue, though. Re-assigning KWin. Maybe it does more full-sized repaints which require more bandwith on the cable making glitches more likely. (In reply to Kai Uwe Broulik from comment #5) > Interesting. I've seen similar glitches on one of my 4K screens, the one > plugged in via HDMI. I still think this is a cable issue, though. > Re-assigning KWin. Maybe it does more full-sized repaints which require more > bandwith on the cable making glitches more likely. I tried 4 different cables,so the problem is not that. Is that something that can be solved? Are you using X11 or Wayland? (In reply to Vlad Zahorodnii from comment #7) > Are you using X11 or Wayland? KDE/Wayland Looks like a hardware or driver issue. Please file a bug report upstream. (In reply to Vlad Zahorodnii from comment #9) > Looks like a hardware or driver issue. Please file a bug report upstream. I found an identical problem here https://bugs.freedesktop.org/show_bug.cgi?id=102646 Awesome! (In reply to Vlad Zahorodnii from comment #11) > Awesome! I don't understand how to apply the patch on kde neon, is there a direct link to the solution? What do you mean? (In reply to Vlad Zahorodnii from comment #13) > What do you mean? Where is the code for the patch on an Ubuntu based system? I'm not sure that I understand what you're asking. The upstream bug report has some patches but how to apply them on Ubuntu based system I don't know because I use Arch. Why is this reopened? Did you try the patches? |