[Bug 81551] New: Missing screen updates when using DRI3
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sat Jul 19 13:24:54 PDT 2014
https://bugs.freedesktop.org/show_bug.cgi?id=81551
Priority: medium
Bug ID: 81551
Assignee: chris at chris-wilson.co.uk
Summary: Missing screen updates when using DRI3
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: jan.steffens at gmail.com
Hardware: All
Status: NEW
Version: git
Component: Driver/intel
Product: xorg
>From https://bugzilla.gnome.org/show_bug.cgi?id=733397:
gnome-shell 3.12.2
mutter 3.12.2
clutter 1.18.2
cogl 1.18.2
mesa 10.2.3
xorg-server 1.16.0
xf86-video-intel 2.99.912-246-g4ae346e
linux 3.15.6
Sometimes the screen isn't updated when it should be. I've seen this happen
when scrolling pagewise using the keyboard in gnome-terminal, gedit or Firefox.
The previous content is retained until something else (such as another scroll,
moving the window or visible activity in another window) causes an update.
This started happening since upgrading xorg-server from 1.15.2 to 1.16.0, which
consequently enabled DRI3. It happens in both mutter and gnome-shell. Disabling
DRI3 for the compositor using LIBGL_DRI3_DISABLE=1 makes the problem disappear.
---
When switching from SNA to UXA or Glamor, the compositor won't even start
without LIBGL_DRI3_DISABLE. It immediately gets an X BadAlloc error.
This is on a Thinkpad X220 (SNB).
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