[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Martin Droessler changed: What|Removed |Added CC||m...@martindroessler.de -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #20 from Jeffery Patton --- (In reply to Peter Eszlari from comment #18) > (In reply to Pieter-Jan Briers from comment #17) > > Could it be that the issue is exclusive to people using PRIME on laptops? > > My tests are based on a discrete graphics card (GTX 960). I can confirm that when doing alt-tab and window snapping while my laptop is plugged into a TV, that there is none of the freezing I've seen when doing things directly on the laptop screen, except maybe a tiny lag typical with doing laptop things on this TV anyways. This bug seems to only affect laptops with Optimus then. Crap. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #19 from Jeffery Patton --- (In reply to Peter Eszlari from comment #16) > (In reply to Jeffery Patton from comment #14) > > (In reply to Peter Eszlari from comment #13) > > > I cannot reproduce this: > > > > > > kwin 5.15.4 > > > Qt 5.11.1 > > > nvidia 390.116 > > > > Could it be the Nvidia driver version as well? > > > > I have 418.x, maybe if I went back to the default Ubuntu drivers on my Neon > > system I could have the freezings stop? > > Now I also tested this on Kubuntu 19.04 (with nvidia 418.56) and I cannot > reproduce it there either. Huh. I'll see if this bug is persistent on laptops then, as Pieter has said about. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #18 from Peter Eszlari --- (In reply to Pieter-Jan Briers from comment #17) > Could it be that the issue is exclusive to people using PRIME on laptops? My tests are based on a discrete graphics card (GTX 960). -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Jonathan Liu changed: What|Removed |Added CC||net...@gmail.com -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #17 from Pieter-Jan Briers --- Could it be that the issue is exclusive to people using PRIME on laptops? I Noticed in the Reddit thread that all the people who had the issue were using laptops (like me). I could try to verify this by starting the x server via HDMI only instead of my laptop's display, because I'm pretty sure the HDMI port on my laptop is wired to the nvidia card instead of the intel card. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #16 from Peter Eszlari --- (In reply to Jeffery Patton from comment #14) > (In reply to Peter Eszlari from comment #13) > > I cannot reproduce this: > > > > kwin 5.15.4 > > Qt 5.11.1 > > nvidia 390.116 > > Could it be the Nvidia driver version as well? > > I have 418.x, maybe if I went back to the default Ubuntu drivers on my Neon > system I could have the freezings stop? Now I also tested this on Kubuntu 19.04 (with nvidia 418.56) and I cannot reproduce it there either. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #15 from Pieter-Jan Briers --- Here's some of the info about my system. I marked all the individual config/log dumps with +++ so you can ctrl+f around it easily. https://pastebin.com/g2REWCc3 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #14 from Jeffery Patton --- (In reply to Peter Eszlari from comment #13) > I cannot reproduce this: > > kwin 5.15.4 > Qt 5.11.1 > nvidia 390.116 Could it be the Nvidia driver version as well? I have 418.x, maybe if I went back to the default Ubuntu drivers on my Neon system I could have the freezings stop? -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Peter Eszlari changed: What|Removed |Added CC||peter.eszl...@gmail.com --- Comment #13 from Peter Eszlari --- I cannot reproduce this: kwin 5.15.4 Qt 5.11.1 nvidia 390.116 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Honghao Li changed: What|Removed |Added CC||i...@rasphino.cn -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #12 from David Edmundson --- This comment I think is important: >I downgraded back to KWin 5.15.3 [..] and it seems like KWin 5.15.3 has the >exact same behavior as KWin 5.15.4 when render loop is set to basic. It implies that it's a completely unrelated problem - just hit more often due to timing changes. >From the backtrace and the comments about when it's triggered, we're blocked when swapping buffers in the QtQuick rendering. That should be completely separate context from the kwin rendering where that patch was. Another useful log would be output of "QSG_INFO=1 kwin_x11 --replace" -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #11 from David Edmundson --- Maybe for stable. Especially 5.12 as that isn't out yet. But I don't think it's a hugely widespread issue. We would have way more than a handful of reports if it was. Can I have the following: - output of "env" - output of "qdbus org.kde.KWin /KWin supportInformation" - Xorg config -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #10 from Vlad Zagorodniy --- I suggest to revert 22a441e071515e9c630f3bdac743c678052f88be if this problem is not fixed by 5.15.5 tar date. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Fabian Vogt changed: What|Removed |Added CC||fab...@ritter-vogt.de -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #9 from Jeffery Patton --- (In reply to Jeffery Patton from comment #8) > I have this problem too. It happens every time when I do window snapping > with my mouse. I tested Pieter-Jan Brier's step to reproduce this bug by > using alt-tab, and I get that problem too. > > I have a post about it on KDE's subreddit here: > https://old.reddit.com/r/kde/comments/bb1bot/ > anybody_having_freezing_problems_in_kde_neon/ > > ABOUT MY SYSTEM: > Operating System: KDE neon 5.15 > KDE Plasma Version: 5.15.4 > KDE Frameworks Version: 5.56.0 > Qt Version: 5.12.0 > Kernel Version: 4.18.0-17-generic > OS Type: 64-bit > Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz > Memory: 11.6 GiB of RAM > GPU: Nvidia GTX 1050 Ti I need to add too that I wonder if this bug is because of the Nvidia-caused CPU usage bug fix that I think was added in 5.15.4. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Jeffery Patton changed: What|Removed |Added CC||roundduckm...@gmail.com --- Comment #8 from Jeffery Patton --- I have this problem too. It happens every time when I do window snapping with my mouse. I tested Pieter-Jan Brier's step to reproduce this bug by using alt-tab, and I get that problem too. I have a post about it on KDE's subreddit here: https://old.reddit.com/r/kde/comments/bb1bot/anybody_having_freezing_problems_in_kde_neon/ ABOUT MY SYSTEM: Operating System: KDE neon 5.15 KDE Plasma Version: 5.15.4 KDE Frameworks Version: 5.56.0 Qt Version: 5.12.0 Kernel Version: 4.18.0-17-generic OS Type: 64-bit Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz Memory: 11.6 GiB of RAM GPU: Nvidia GTX 1050 Ti -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Rik Mills changed: What|Removed |Added CC||rikmi...@kubuntu.org -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 Nate Graham changed: What|Removed |Added CC||n...@kde.org Status|REPORTED|CONFIRMED Ever confirmed|0 |1 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #7 from Pieter-Jan Briers --- Oh I just noticed something else. I downgraded back to KWin 5.15.3 to try the render loop basic thing on there, and it seems like KWin 5.15.3 has the exact same behavior as KWin 5.15.4 when render loop is set to basic. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #6 from Pieter-Jan Briers --- Setting render loop to basic seemed to have helped slightly but it's still unusable. That said, this time if I hold down alt until it stops hanging on its own, KWin seems to get a graphics reset which at the very least breaks rendering of blur until I kwin_x11 --replace it. I did notice something odd though. I mentioned how the mouse cursor going over a panel unstuck it? I think it seems to happen with entering windows with the mouse too, at least now that rendering loop is set to basic. So I have firefox maximized behind everything else, and I have say konsole and discord open above that. I have konsole focused and my mouse outside its window. I hit alt tab and hold alt, this hangs KWin, then I move my mouse into Konsole and it mostly reliably stops hanging. Seems to work for any window too. Oh I guess it can't hurt to mention this too: if I open a preview of the selected task switcher in system settings that has absolutely no problem. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #5 from David Edmundson --- If you go kcmshell5 qtquicksettings and set render loop to "basic" can you confirm that the freeze goes away. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #4 from Pieter-Jan Briers --- Sure: https://pastebin.com/ggLkGjT6 This is a build from master while I am writing this by the way (1e2a0028c3151cb38f252baa78a5f22b8cd7c7e6) -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 David Edmundson changed: What|Removed |Added CC||k...@davidedmundson.co.uk --- Comment #3 from David Edmundson --- Can you try and get a backtrace when GDB is at 100% CPU? Using two computers + ssh is the easiest way to do that -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #2 from Pieter-Jan Briers --- That commit is definitely it. I built KWin from source with and without said commit reverted and it's definitely the cause of the regression. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 406180] KWin 5.15.4 alt-tab hang regression on nvidia
https://bugs.kde.org/show_bug.cgi?id=406180 --- Comment #1 from Vlad Zagorodniy --- Hmm, could it be 22a441e071515e9c630f3bdac743c678052f88be? -- You are receiving this mail because: You are watching all bug changes.
