[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
*** This bug is a duplicate of bug 1846398 *** https://bugs.launchpad.net/bugs/1846398 Sorry to hear about that other bug. To avoid confusion and unnecessary duplication I have now generalized bug 1846398 so it covers this issue too. ** This bug has been marked a duplicate of bug 1846398 [modeset] xrandr scaling has significant visible tearing in Xorg sessions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
You are right, but I am using this strange resolution with a good reason. If I am using 1920x1080 I am suffered from a even bigger bug - after resume (which often happens with laptops) the screen flickers like hell. See here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872760 Playing around with resolution and framerates I found that it doesn't flicker in any other resolution but 1920x1080. That's why I created this custom one. Didn't expect this dependency on tearing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
Looking deeper at this bug I just noticed the issue is triggered by using a fake screen resolution: 1912x1080_60.00 (0x48) 171.250MHz -HSync +VSync *current +preferred It should be 1920x1080 (https://support.hp.com/au- en/document/c05033206#AbT3). While Xorg lets you create any resolution of your choice, doing so will result in indirect rendering, which will result in tearing with the modeset driver. So this bug seems like user error... You just need to remove the custom mode "1912x1080" or find out what/where that came from. ** Changed in: xorg-server (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
** Changed in: xorg-server (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
True but on the other hand this (Ubuntu 20.04) are LTS distros. This will affect poeple at least for more than 3 years. But I understand, the new stuff (Wayland) is more of interest for dev than fixing the old one. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
I think it's a result of Wayland's growing popularity, particularly upstream and other distros where it is default. There are much fewer developers involved in fixing Xorg now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1888810] Re: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver
You nailed it: intel hardware (this is what I refered), but modeset driver. Topic is clearer now - thanks. Age of bug is rather old, not a good sign imho. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/110 Title: MATE desktop in Ubuntu 20.04 screen tearing with modeset driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
