Bug 79858 - Artifacts/Glitches in Blender menu
Summary: Artifacts/Glitches in Blender menu
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Mesa core (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: mesa-dev
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-06-09 23:42 UTC by nucrap
Modified: 2017-03-18 02:27 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:


Attachments
glitch in blender menu (510.37 KB, image/png)
2014-06-09 23:42 UTC, nucrap
Details
glitch in blender menu 2 (231.69 KB, image/png)
2014-06-09 23:43 UTC, nucrap
Details

Description nucrap 2014-06-09 23:42:45 UTC
Created attachment 100776 [details]
glitch in blender menu

Mostly when maximizing blender (you might need to try a few times) the menu at the top is full of artifacts and glitches.
It is independent of DE or any compositing effects because I tested this under compiz and openbox (without compiz) and it always occurs.

I have attached screenshots for better understanding.
I have tested it with both a HD4770 and a R7 260x graphics card (and I think it also happened on my laptop HD 5xxx).

My bugreport on the blender bugtracker: https://developer.blender.org/T37504

This should be really easy to reproduce. I use Archlinux with the latest software.
Comment 1 nucrap 2014-06-09 23:43:15 UTC
Created attachment 100777 [details]
glitch in blender menu 2
Comment 2 smoki 2014-06-10 05:48:23 UTC
 Cannot reproduce by maximizing this in current Debian Sid: kernel 3.14.5, mesa 10.1.4, blender 2.70, openbox, Radeon 8400 / r3.

 But of course i can see those artifacts when resizing, but it got refreshed here does not stay :). 

 Area with those artifacts are black with LIBGL_ALWAYS_SOFTWARE=1 blender
Comment 3 Michel Dänzer 2014-06-10 06:18:40 UTC
I think this is more likely a generic DRI2 issue related to front buffer rendering than anything driver specific.
Comment 4 Sven Arvidsson 2014-07-31 15:46:12 UTC
I used to see this all the time, but not lately. 

For me it was specific to r600g, I have never seen this on i965.
Comment 5 Edward O'Callaghan 2016-11-05 12:49:23 UTC
(In reply to Michel Dänzer from comment #3)
> I think this is more likely a generic DRI2 issue related to front buffer
> rendering than anything driver specific.

Correct yes,

Run blender with `LIBGL_DRI3_DISABLE=1`. I reported it to them however they don't listen well.
Comment 6 Michel Dänzer 2017-03-18 02:27:51 UTC
Assuming this is fixed, per comment 4. Please don't reopen unless this can be reproduced with DRI2.


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