Bug 2058143 might be related but is about much older hardware than
yours, so probably isn't related.
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Title:
Screen Stuttering on Intel Graphics
** Changed in: mutter (Ubuntu)
Status: New => Incomplete
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Title:
Screen Stuttering on Intel Graphics when using X11 non-standard modes
To
Thanks. Those video files seem to have bogus frame rate information.
Depending on the player they are reported as 25.415FPS, 26.318FPS,
120FPS or 3FPS. But they all appear to be low frame rate so I'm
guessing they're close to 24-30FPS. It would be helpful to record a
video in native 60FPS or hi
Understand what you say about the Dell display - but I see the same behavior
regardless of the screen I am using.
As for Wayland - get the same stuttering - that is why I believe it is related
to the intel i915 driver.
I get the same behavior on a completely different PC, different
motherboard,
** Attachment added: "Wayland - LG TV.mp4"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5851392/+files/Wayland%20-%20LG%20TV.mp4
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** Attachment added: "Xorg - LG TV.mp4"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5851391/+files/Xorg%20-%20LG%20TV.mp4
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** Attachment added: "glxinfo.txt"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5851388/+files/glxinfo.txt
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Title:
** Attachment added: "xrandr.txt"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5851390/+files/xrandr.txt
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** Attachment added: "vainfo.txt"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5851389/+files/vainfo.txt
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Title:
Thanks. I have two remaining thoughts:
1. The EDID information from xrandr says the monitor is a 'DELL
E2418HN'. And I have experienced problems myself with Dell monitors
advertising fake refresh rates which they don't actually implement on
screen (they stutter instead). So there's a chance the De
** Attachment added: "Glxgears.mp4"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850962/+files/Glxgears.mp4
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Titl
** Attachment added: "xrandr.txt"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850967/+files/xrandr.txt
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Title:
** Attachment added: "Screenshot from 2025-01-11 09-06-23.png"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850966/+files/Screenshot%20from%202025-01-11%2009-06-23.png
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** Attachment added: "vainfo.txt"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850961/+files/vainfo.txt
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** Attachment added: "Screenshot from 2025-01-11 09-10-27.png"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850965/+files/Screenshot%20from%202025-01-11%2009-10-27.png
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** Attachment added: "Screenshot from 2025-01-11 09-10-27.png"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850964/+files/Screenshot%20from%202025-01-11%2009-10-27.png
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** Attachment added: "Video stutter windowed.mp4"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850963/+files/Video%20stutter%20windowed.mp4
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Hi,
Sorry for the late reply - installed and tried a bunch of stuff - so
rather did a fresh install with nothing added to complete the tests for
you.
This round I did not even add the extension to disable unredirect as per
the bug you linked - so just ran the video in a window - and it is still
s
** Attachment added: "glxinfo.txt"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2093399/+attachment/5850960/+files/glxinfo.txt
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Title:
I completely forgot; any compositor can stutter at multiples of 5-10
seconds if it is writing log messages to disk. Because journaling file
systems will only buffer 5-10 seconds worth of writes before they block
the process to commit changes to disk. And that takes longer than a
frame interval so a
Please also run this while using Intel graphics:
sudo apt install mesa-utils
glxinfo > glxinfo.txt
and attach the resulting text file here.
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Can we also assume other commands like glxgears and glmark2 render
smoothly?
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Title:
Screen Stuttering on Intel Graphics
To manage notifications
Thanks for the bug report.
The tearing issue is tracked in bug 1754284, but it sounds like you have
a workaround. We would prefer you used Wayland instead of Xorg though,
then tearing would never occur. Is there a reason you're using Xorg?
Please also attach the output from running 'vainfo' on th
** Attachment added: "Screenshot from 2025-01-10 08-28-21.png"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2093399/+attachment/5850762/+files/Screenshot%20from%202025-01-10%2008-28-21.png
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** Attachment added: "Screenshot from 2025-01-10 08-16-21.png"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2093399/+attachment/5850760/+files/Screenshot%20from%202025-01-10%2008-16-21.png
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** Attachment added: "Screenshot from 2025-01-10 08-20-33.png"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2093399/+attachment/5850761/+files/Screenshot%20from%202025-01-10%2008-20-33.png
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** Attachment added: "Screenshot from 2025-01-10 08-14-45.png"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2093399/+attachment/5850759/+files/Screenshot%20from%202025-01-10%2008-14-45.png
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** Attachment added: "cell video stutter.mp4"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2093399/+attachment/5850758/+files/cell%20video%20stutter.mp4
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More files - some screen shots of resolution and media info of the test
file.
Test file also included
** Attachment added: "1080p60fps_tearing_test.mp4"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2093399/+attachment/5850757/+files/1080p60fps_tearing_test.mp4
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