Arch Linux

Installed it about a week ago, do not have the same issue.

I also observe tearing in videos and games. Disabling DRI3 seems to fix it but with DRI2, I had other issues. I have [testing] enabled and my packages are up to date. I have not yet tried downgrading xf86-video-ati but it might be the culprit because Wayland seems unaffected.

In any case, this is probably an upstream issue. On the mailing lists, I read some messages indicating issues with DRI3. However, until a few weeks ago, I was running DRI3 just fine before it was enabled by default and the issue appeared about a month ago. As of yet, I have not spent the time to file a proper bug report.

Vendor: X.Org (0x1002)
Device: AMD PALM (DRM 2.48.0 / 4.9.4-1-ARCH, LLVM 3.9.1) (0x9808)
Version: 13.0.3
Accelerated: yes
Video memory: 384MB
Unified memory: no
Preferred profile: core (0x1)
Max core profile version: 3.3
Max compat profile version: 3.0
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.0

I notice the same bug, tearing on video images,

I notice also random corrupt display on some small part of the screen ( for example in menus in firefox, cascade menus like bookmark menus, randomly a corrupt diplay on this menu can occur )

downgrading to xf86-video-ati-1:7.8.0-2-x86_64 is not possible, because of an incompatibility with the last version of xorg-server :

# pacman -U xf86-video-ati-1\:7.8.0-1-x86_64.pkg.tar.xz
loading packages...
warning: downgrading package xf86-video-ati (1:7.8.99.r16.gea30d856-1 => 1:7.8.0-1)
resolving dependencies...
looking for conflicting packages...
:: xf86-video-ati and xorg-server are in conflict (X-ABI-VIDEODRV_VERSION). Remove xorg-server? [y/N]

so I hope that upstream will find a solution

downgrading is not possible ( conflict ABI version with xorg ), so my solution was to recompile xf86-video-ati 1:7.8.0-2, in order to have a compatible version with the last version of xorg-server,

I made slight modifications on the PKGBUILD file ( see the attachment )

Did you try disabling DRI3? Setting LIBGL_DRI3_DISABLE=1 also seems to "fix" the tearing for me. Might be enough to survive until a proper fix gets released.

I didn't try to disable DRI3,

you put the setting "export LIBGL_DRI3_DISABLE=1" in your ~/.bashrc file ?

no other possibilities like a conf file in order to set this setting for all users ?

Can you file a bug upstream at https://bugs.freedesktop.org and paste the link here?

There is this bug report https://bugs.freedesktop.org/show_bug.cgi?id=97873 , but it should fix the tearing
and the version we provide have already the fix.

maybe this patch is broken since the release of xorg-server 1.19.1 ( or the last version of mesa )

Some corrupt display on pull-down menus also happens on my 32bit system using an old R600 videocard (HD2400).
I think it is the same "random corrupt display on some small part of the screen" patrick (potomac) was talking about.

Setting in xorg.conf:
Option "DRI" "2"
and in /etc/profile.d/test.sh:
export LIBGL_DRI3_DISABLE=1
and rebooting did not help.

Compiling an older version (1:7.8.0-2) did help.

I just submitted a bug report upstream:

https://bugs.freedesktop.org/show_bug.cgi?id=99491

potomac: For me, it was enough to just set it before I started my video player or game. This should be enough to check if it works. If it works and you want to set it globally, you might as well just disable DRI3 in you xorg.conf.

Please check the new snapshot in testing repo.

the bug ( tearing ) is still here with this testing version,

it would be interesting if someone can make a git bisect, in order to find the commit which has introduced this bug

Please report this back to the upstream tracker. I guess you don't have a PALM chip? Maybe you are triggered by a different bug.

The upstream commit for PALM chips should be included in this package in testing repo.

@Andreas : what is a palm chip ?

I have a radeon HD4650 Pcie graphic card ( chip : RV730 pro )

https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units#Radeon_R700_.28HD_4xxx.29_Series

Ask/report it there: https://bugs.freedesktop.org/show_bug.cgi?id=99491

I have just posted a comment in the upstream tracker,

tearing problem is still here for the users like me ( old amd card : radeon HD4650 )

other user in this archlinux bug report has also an old card ( radeon HD2400 ) and the same bug ( tearing ) and he has also noticed like me a corrupt display sometimes on pull-down menus

Same problem with Radeon R7 260X. Not only videos, but everything (scrolling, moving clients etc.).

To all people with rendering issues: Do you use a compositor? If I use compton with GLX backend sometimes areas are not properly rendered (I assume that there are wrong assumptions about the content of some buffer, but I tried various configs for compton and it was always broken): https://github.com/chjj/compton/issues/399
Also disabling DRI3 did not help (there are some programs that assume different buffers like blender, see https://www.youtube.com/watch?v=tnVNrp80LDI).

any news about the resolution of this bug ?

I've just installed 1:7.9.0-1 and having the same problems (corrupted pull-down menus and tooltips) on KDE/Qt applications and also on Firefox.

Is this still an issue?

the bug is still present,

nothing has changed since march 2017, the version of the package is still 1:7.9.0-1

I'm using a different GPU now, but I remember that nothing has changed until the last week of May.

I still have my old radeon graphic card : amd radeon HD4650 pcie,

and the bug is still here : big tearing in videos, corrupted pull-down menus and tooltips

I created a bug report in upstream :

https://bugs.freedesktop.org/show_bug.cgi?id=102144