[Bug 111140] Buffer corruption with Chromium on gnome-shell (wayland) after taking a screenshot
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Jul 15 22:52:29 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111140
Bug ID: 111140
Summary: Buffer corruption with Chromium on gnome-shell
(wayland) after taking a screenshot
Product: Mesa
Version: git
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/i965
Assignee: intel-3d-bugs at lists.freedesktop.org
Reporter: lyude at redhat.com
QA Contact: intel-3d-bugs at lists.freedesktop.org
So: while viewing a video in Chromium in full screen mode, taking a screenshot
of _only_ the window (using Alt+PrintScr) on gnome-shell on Wayland causes some
rather hilarious buffer corruption. From the looks of it, only one of the two
buffers Xwayland is using get corrupted, causing a rather jarring flickering
effect. See the example video here:
https://people.freedesktop.org/~lyudess/archive/07-15-2019/VID_20190712_172307.mp4
So far I've managed to confirm this is indeed a hardware acceleration issue, as
disabling hardware acceleration seems to fix the issue. Additionally, this
issue seems to be specific to intel - I haven't managed to reproduce it with
AMD. Note however, the only environment I've managed to reproduce this in is
gnome-shell 3.32.2 on Wayland.
The trigger for this seems to be:
- Start playing a video with chromium
- Put the window into full screen mode
- Grab a screenshot of the window using alt + PrintScr (grabbing the whole
desktop or a portion of it won't work)
- Shield your eyes as your screen starts flickering
There's also a downstream bug for this on Fedora 30 now opened:
https://bugzilla.redhat.com/show_bug.cgi?id=1729613
Hopefully this doesn't end up being some random gnome-shell or Xwayland issue…
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