[Bug 109212] DiRT Rally elements blinking constantly
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Jan 2 21:38:03 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=109212
Bug ID: 109212
Summary: DiRT Rally elements blinking constantly
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: leozinho29_eu at hotmail.com
QA Contact: intel-3d-bugs at lists.freedesktop.org
In the game DiRT Rally, it's observed that certain elements blink frequently.
The most common are the trees, but even the pilot and car can blink on rare
cases. This was observed with severity on Mesa Git and Mesa 18.2.3. With Mesa
18.0.5 (from Ubuntu 18.04 repositories) it happens very rarely.
Here is a video I recorded showing this (Mesa git):
https://www.youtube.com/watch?v=He3OBNNP6Ro
Another relevant information I observed is how memory usage when using Mesa Git
and Mesa 18.2.3 is significantly smaller: they use 22,5% of RAM memory from my
computer, while using Mesa 18.0.5 uses 45% of RAM memory.
The game is set to graphic preset Ultralow. The effect was the most noticeable
on Greece stages.
I have recorded an Apitrace with Mesa git but it has 5,1 GB compressed and will
take hours to upload. When it finishes I'll add its link here. I'll try to
bisect to see when the behavior changed in memory usage and blinking elements
(I'm not sure if both things are related, but seems suspect).
System specifications:
Processor: Intel Core i3-6100U;
Video: Intel HD Graphics 520;
Architecture: amd64;
RAM memory: 8 GB;
Mesa: 19.0.0-devel (git-8c93ef5de9);
Kernel version: 4.20.0-drm-tip-0811a42b9e8b0fb3aa3ba028ddae292af436b6c2+;
Distribution: Xubuntu 18.04.1 amd64.
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