[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #41 from Vlad Zagorodniy --- Created attachment 117441 --> https://bugs.kde.org/attachment.cgi?id=117441&action=edit eye-candy flickering Some further investigation... Apparently, sometimes we don't draw windows atop subsurfaces. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #40 from Vlad Zagorodniy --- > not properly rendering subsurfaces. In question. It's still not clear why the flickering occurs. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #39 from Vlad Zagorodniy --- I did some investigation... It looks like this bug is caused by us not properly rendering subsurfaces. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313
--- Comment #38 from Vlad Zagorodniy ---
One potential way to work around the bug:
* Disable buffer age: KWIN_USE_BUFFER_AGE=0 startplasmacompositor
* Select "Full screen repaints" in System Settings > Display and Monitor >
Compositor > Tear prevention ("vsync")
Though it may cause performance issues.
Also, it seems like running KWin/Wayland without buffer age support causes lots
of visual artifacts, unless you have full screen repaints.
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[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Vlad Zagorodniy changed: What|Removed |Added Status|REOPENED|CONFIRMED Version|5.11.3 |5.14.5 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #37 from Shmerl --- Just tested it with Plasma 5.14.3 since it's now available in Debian. The issue is a bit less severe, but still plagues Kmail. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Lemmiwinks changed: What|Removed |Added CC||andylem...@googlemail.com --- Comment #36 from Lemmiwinks --- I'm also affected. Intel Haswell Graphics KMAIL 5.9.3 (18.08.3) Operating System: KDE neon 5.14 KDE Plasma Version: 5.14.3 Qt Version: 5.11.2 KDE Frameworks Version: 5.52.0 Processors: 4 × Intel® Core™ i7-4600U CPU @ 2.10GHz Memory: 15,1 GiB of RAM -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #35 from tro...@free.fr --- For the person who asked, it still occurs on Plasma 5.14.3. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Nate Graham changed: What|Removed |Added CC||n...@kde.org -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #34 from Patrick Silva --- Created attachment 115956 --> https://bugs.kde.org/attachment.cgi?id=115956&action=edit plasma 5.14.2, Arch Linux Screencast showing Arch Linux running plasma 5.14.2, frameworks 5.51. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #33 from Shmerl --- (In reply to Patrick Silva from comment #29) > in plasma 5.14 beta (Arch) I can reproduce the same flickering in window > decoration kcm. Click "get new decoration" button, drag the window... enjoy > flickering. Did anyone test it with 5.14.2? Debian testing is still at 5.13.5. This so far is the biggest annoyance that prevents me from using Wayland Plasma session. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Shmerl changed: What|Removed |Added CC||shm...@mykolab.com --- Comment #32 from Shmerl --- I'm affected by this bug as well. Kmail: 18.08.1 Kwin: 5.13.5 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #31 from tro...@free.fr --- The bug started again on my side, too. When I open a window inside Kmail (mostly "Compose new message"), I get insane flickering and graphics corruption. Setting the windows fullscreen seem to fix it though. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #30 from k...@palkeo.com --- I also have the same problem with kmail, random flickering and it's nearly always the case when I open a new window inside kmail (file selector, email compositor...). I'm using an intel integrated gpu. Happy to help if there is anything specific I can try. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #29 from Dr. Chapatin --- in plasma 5.14 beta (Arch) I can reproduce the same flickering in window decoration kcm. Click "get new decoration" button, drag the window... enjoy flickering. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 k...@palkeo.com changed: What|Removed |Added CC||k...@palkeo.com -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #28 from Rainer Finke --- The only change that happened with KDE Applications 18.04 was that Kmail enforces the xcb backend. And by this it tricked me still believing it would run on Wayland as it did before. Sorry to bother you, but I didn't expect this as Plasma 5.12 declared Wayland as stable. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #27 from Rainer Finke --- The Mesa downgrade didn't change anything. So yes, somehow the symptoms are gone in the case of Kmail. Don't know if it is related, but in another scenario I can still reproduce a flickering in systemsettings https://bugs.kde.org/show_bug.cgi?id=391615. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #26 from Rainer Finke --- I did my test on 3 systems now, 1 Intel and 2 AMD GPU's. I run Linux 4.16.3, Mesa 18.0.1, Qt 5.10.1, Plasma 5.12.4, KDE Frameworks 5.45 and KDE Applications 18.04. Looking at the update log, Mesa was updated from 18.0 to 18.0.1 as well at the same time. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Martin Flöser changed: What|Removed |Added Ever confirmed|0 |1 Status|RESOLVED|REOPENED Resolution|FIXED |--- --- Comment #25 from Martin Flöser --- I'm reopening. I don't doubt you that the symptoms are fixed, but this is a KWin bug. No change in KMail can fix it. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Rainer Finke changed: What|Removed |Added Resolution|--- |FIXED Status|UNCONFIRMED |RESOLVED --- Comment #24 from Rainer Finke --- My AMD systems don't show the flickering anymore. For me this bug is fixed with KDE Applications 18.04. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #23 from tro...@free.fr --- I'm on Applications 18.04 and I don't seem to be affected by this bug anymore, either. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #22 from Rainer Finke --- With KDE Applications 18.04 I don't see the flickering in Kmail anymore, at least on my Intel notebook. Will test on my AMD machine and report if it works well. Linux 4.16, Plasma 5.12.4, KDE Frameworks 5.45 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 adikur...@gmail.com changed: What|Removed |Added CC||adikur...@gmail.com -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #21 from Martin Flöser --- Adding some investigation results: * the observed flickering is "just" buffer age * on a multi-screen setup the issue can only be reproduced on the first screen (which has buffer age enabled) * the flickering frames are fine. E.g. for moving the cursor over a menu only the changed area is repainted. The flickering comes from the aged buffer * which means the root problem is that a buffer is painted with incorrect damage information Why that is the case I couldn't figure out yet. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Martin Flöser changed: What|Removed |Added CC||mar...@harrisonland.co.uk --- Comment #20 from Martin Flöser --- *** Bug 389053 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #19 from Rainer Finke --- @tro...@free.fr: Both bug reports are not related to this one from my point of view. I'm a normal Arch Linux user as well and minimizing Kmail works for me with Plasma 5.11 and 5.12 beta. I either close Kmail or I mimize to the panel. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #18 from tro...@free.fr --- About minimizing Kmail : https://bugs.kde.org/show_bug.cgi?id=389143 And : https://bugs.kde.org/show_bug.cgi?id=387405 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #17 from Rainer Finke --- As this is just a flickering, for me it is not critical and can wait after the Plasma 5.12 release. And I can work around the flickering by minimizing Kmail when not required or changing the size of the systemsettings window to get the updated content. Thanks -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Dr. Chapatin changed: What|Removed |Added CC||bugsefor...@gmx.com --- Comment #16 from Dr. Chapatin --- I'm affected by this bug on Arch Linux running plasma 5.12 beta. I have intel hd graphics, modesetting driver. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #15 from Martin Flöser --- I'm pretty sure I see the same. And I fear I won't have the time to fix it before 5.12 final release. But at least I have a very good idea of what goes wrong. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #14 from Rainer Finke --- The update to Plasma 5.12 beta didn't help either, flickering is still there on a Intel and AMD GPU. Do you see the same graphical glitches or do you need any futher information? -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #13 from Rainer Finke --- I did some fast testing with kwin-git on Arch Linux and KDE Frameworks 5.42. First, I didn't compile any other packages, so I might have missed another required change, if yes please let me know. I still get the flickering. I just have to open Kmail maximized and move the mouse up and down in the "Files" menu, it either disappears or is flickering. I tested as well with an application on top like Kwrite, but this also didn't really change. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 --- Comment #12 from Martin Flöser --- I got some findings based on comment #9. Instead of using konsole I tried with kwrite and observed the same flickering if kwrite is started with platform wayland, but no flickering if started with platform xcb. Through the KWin debug console I investigated the difference of those two kwrites and observed that the Wayland variant uses RGBA (for whatever reason), while the X11 variant uses RGB. That the flickering is related to use of transparency makes sense in the context of the bug fix I already did. So overall I'm slightly optimistic to now being able to find the actual issue. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Jan Grulich changed: What|Removed |Added CC||jgrul...@redhat.com -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Martin Flöser changed: What|Removed |Added CC||northivanas...@gmail.com --- Comment #11 from Martin Flöser --- *** Bug 388837 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Michael D changed: What|Removed |Added CC||nortex...@gmail.com --- Comment #10 from Michael D --- I can reproduce the bug (including as in comment 9) in KDE Neon User Edition (Plasma 5.11.5, Frameworks 5.41.0) on Intel Broadwell hardware and mesa 17.2.4. It's really nasty! -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Christoph Feck changed: What|Removed |Added CC||cf...@kde.org -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 387313] Flickering on Wayland with Kmail or Systemsettings
https://bugs.kde.org/show_bug.cgi?id=387313 Rainer Finke changed: What|Removed |Added Summary|Flickering on Wayland with |Flickering on Wayland with |Kmail |Kmail or Systemsettings -- You are receiving this mail because: You are watching all bug changes.
