[Bug 72387] New: Tearing at one specific part of the screen on CAYMAN

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bugzilla-daemon＠freedesktop.org

6 Dec 2013 6 Dec '13

8:36 a.m.

https://bugs.freedesktop.org/show_bug.cgi?id=72387

Priority: medium Bug ID: 72387 Assignee: dri-devel@lists.freedesktop.org Summary: Tearing at one specific part of the screen on CAYMAN Severity: normal Classification: Unclassified OS: Linux (All) Reporter: v10lator@myway.de Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Drivers/Gallium/r600 Product: Mesa

I see this with games as well as on my (composited) desktop when scrolling very fast in firefox, for example.

Let me try to explain: If you would cut the screen horizontally in 3 pieces the line between the middle and the down piece is where the tearing appears. It appears even with vsync.

I tried to capture it with gtk-rekordmydesktop but for some reason the video is tear-free.

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bugzilla-daemon＠freedesktop.org

6 Dec 6 Dec

10:44 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #1 from Michel Dänzer michel@daenzer.net --- Please attach /var/log/Xorg.0.log and the output of dmesg.

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bugzilla-daemon＠freedesktop.org

7 Dec 7 Dec

9:51 p.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #2 from Kai kai@dev.carbon-project.org --- Created attachment 90433 --> https://bugs.freedesktop.org/attachment.cgi?id=90433&action=edit dmesg output for DRM/radeon

I'm seeing this too with a PITCAIRN chip (stack detailed below). Though the tearing (one, 27" monitor with 2560x1440, KDE 4.11, composited) appears like five ccentimeters from the top whenever there is fast movement or quick image changes. I'm not seeing this with Catalyst.

(Sorry for not reporting this earlier, but I totally forgot to.)

No error/warning (except not finding some cyrillic font) is logged to Xorg.0.log – do you still want to have it?

Stack used: GPU: "PITCAIRN" (ChipID = 0x6819) Linux: 3.12.1 libdrm: 2.4.49-2 (Debian package) LLVM: SVN:trunk/r195435 libclc: Git:master/8e0ea3a263 Mesa: Git:master/aad2511c6d GLAMOR: Git:master/b418b13126 DDX: Git:master/d571d6af70 KWin: 4.11.3-2 (Debian package)

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bugzilla-daemon＠freedesktop.org

8 Dec 8 Dec

8:40 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #3 from Thomas Rohloff v10lator@myway.de --- Created attachment 90445 --> https://bugs.freedesktop.org/attachment.cgi?id=90445&action=edit /var/log/Xorg.0.log

As Kai said there's nothing important in Xorg.log/dmesg, I attach it anyway.

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bugzilla-daemon＠freedesktop.org

8:41 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

Thomas Rohloff v10lator@myway.de changed:

--- Comment #4 from Thomas Rohloff v10lator@myway.de --- Created attachment 90446 --> https://bugs.freedesktop.org/attachment.cgi?id=90446&action=edit dmesg output

Sorry, wrong file (just woke up).

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bugzilla-daemon＠freedesktop.org

8:42 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #5 from Thomas Rohloff v10lator@myway.de --- Created attachment 90447 --> https://bugs.freedesktop.org/attachment.cgi?id=90447&action=edit /var/log/Xorg.0.log

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bugzilla-daemon＠freedesktop.org

2:31 p.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

Kai kai@dev.carbon-project.org changed:

--- Comment #6 from Kai kai@dev.carbon-project.org --- Comment on attachment 90433 --> https://bugs.freedesktop.org/attachment.cgi?id=90433 dmesg output for DRM/radeon

I think I've to withdraw my "me too". I certainly did see this in the past, but the stack I detailed in comment 2 was wrong: I wasn't add KDE 4.11.3-2 (I hadn't restarted X). Now, really on 4.11.3-2, I'm unable to reproduce the tearing. What I've seen might have been an KWin issue then.

Sorry for the noise.

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bugzilla-daemon＠freedesktop.org

3:50 p.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #7 from Thomas Rohloff v10lator@myway.de --- Well, I'm seeing this with XFCE4 and fglrx is tear-free.

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bugzilla-daemon＠freedesktop.org

9 Dec 9 Dec

3:44 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

Michel Dänzer michel@daenzer.net changed:

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bugzilla-daemon＠freedesktop.org

3:48 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #8 from Michel Dänzer michel@daenzer.net --- Does it work better with EXA instead of glamor?

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bugzilla-daemon＠freedesktop.org

3:02 p.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #9 from Thomas Rohloff v10lator@myway.de --- (In reply to comment #8)

...

Does it work better with EXA instead of glamor?

No.

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bugzilla-daemon＠freedesktop.org

11 Dec 11 Dec

4:21 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #10 from Michel Dänzer michel@daenzer.net --- Your options right now are basically:

* Use fullscreen apps, and make sure the compositing manager unredirects fullscreen windows. * Using an OpenGL compositing manager may help to avoid tearing with non-fullscreen apps as well. * Use EXA with Option "EXAVSync" (but read the radeon manpage about its caveats).

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bugzilla-daemon＠freedesktop.org

29 May 29 May

1:44 p.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #11 from Thomas Rohloff v10lator@myway.de --- (In reply to Michel Dänzer from comment #10)

...

Your options right now are basically:

Use fullscreen apps, and make sure the compositing manager unredirects fullscreen windows.

Using an OpenGL compositing manager may help to avoid tearing with non-fullscreen apps as well.

Use EXA with Option "EXAVSync" (but read the radeon manpage about its

caveats).

I'm now on LXQT with compton as compositor. The tearing is still there.

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bugzilla-daemon＠freedesktop.org

1 Jun 1 Jun

7:21 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #12 from Michel Dänzer michel@daenzer.net --- (In reply to Thomas Rohloff from comment #11)

...

I'm now on LXQT with compton as compositor. The tearing is still there.

What command line parameters / configuration are you using for compton? Something like

compton --backend glx --glx-swap-method 2 --unredir-if-possible

works well for me.

With current xf86-video-ati Git master, you can also try Option "TearFree", which should prevent tearing even without a compositing manager. Its downside is that it disables DRI page flipping ATM.

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bugzilla-daemon＠freedesktop.org

20 Oct 20 Oct

11:30 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #13 from Thomas Rohloff v10lator@myway.de --- Created attachment 119001 --> https://bugs.freedesktop.org/attachment.cgi?id=119001&action=edit .compton.conf

This is my compton config file. Tearing happens with (unredirected) fullscreen apps, too.

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bugzilla-daemon＠freedesktop.org

11:33 a.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

--- Comment #14 from Thomas Rohloff v10lator@myway.de --- Added

glx-swap-method = 2

to the config. Tearing still there.

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bugzilla-daemon＠freedesktop.org

18 Sep 18 Sep

7:12 p.m.

New subject: [Bug 72387] Tearing at one specific part of the screen on CAYMAN

https://bugs.freedesktop.org/show_bug.cgi?id=72387

GitLab Migration User gitlab-migration@fdo.invalid changed:

--- Comment #15 from GitLab Migration User gitlab-migration@fdo.invalid --- -- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/474.

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bugzilla-daemon＠freedesktop.org