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IDProjectCategoryView StatusDate SubmittedLast Update
0001568Zandronum[All Projects] Bugpublic2013-11-04 23:402018-08-26 19:36
Reporterermacaz 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionno change required 
PlatformLinux x64OSMintOS Version15
Product Version1.2 
Target VersionFixed in Version 
Summary0001568: Graphical artifacts in opengl
DescriptionOriginally posted here
'http://zandronum.com/forum/showthread.php?tid=3804 [^]'

Get minor graphical artifacts in opengl mode
Using Zandronum v1.2 - SVN revision 130826-1853 - SDL version
Intel integrated graphics (on a I-520M), also tested with a radeon 5650m on same machine (dual graphics laptop).
OpenGL mesa 9.1.7

Here are several screenshots of what I am seeing
'http://imgur.com/a/U1Kf6 [^]'

And my zandronum.ini
'http://pastebin.com/5LHN5N2P [^]'
Steps To ReproduceLaunch zandronum in opengl mode.
Start any level.
Attached Files

- Relationships

-  Notes
User avatar (0007509)
ermacaz (reporter)
2013-11-04 23:42

 Forgot to mention, tested on windows on same machine and had no issues.
User avatar (0007511)
Torr Samaho (administrator)
2013-11-05 19:23

 Can you compile the latest 2.0 version on your machine and check whether it's fixed in there?
User avatar (0007512)
ermacaz (reporter)
2013-11-06 00:04

 I can confirm the issue persists on Zandronum v2.0-alpha - SVN revision 131102-1555 - SDL version

'http://i.imgur.com/YFhRTai.jpg [^]' -image from 2.0
User avatar (0007664)
ermacaz (reporter)
2013-12-03 17:01
edited on: 2013-12-03 17:03

 Issue persists after upgrading kernel to 3.11.0-13 and Mesa 9.2.1
User avatar (0007673)
Torr Samaho (administrator)
2013-12-08 07:55

 Does it work in the latest GZDoom version?
User avatar (0007691)
ermacaz (reporter)
2013-12-09 23:43

 Unfortunately I get a buffer overflow error when I try to load a game in gzdoom when compiled using this guide
'http://zdoom.org/wiki/Compile_GZDoom_on_Linux [^]'
User avatar (0007722)
skyrimguy (reporter)
2013-12-23 04:13
edited on: 2013-12-23 07:46

 [i965] [GM45] bogus rendering with gen4-5 intel chipsets
Quote

I think this is a bug in Mesa,
respectively the dri component of the i965 driver, since AMD and Nvidia
based cards with the radeon and nouveau open source drivers work fine.


[GM45] [x86_64] Bogus rendering while playing Foobillard++
Quote

Thanks for the report!

I can confirm this bug using Mesa master on Ironlake as well. Similar blocky pattern and flickering. Ivybridge does not show this problem, so presumably it's Gen4-5 code at fault...


[IronLake regression] render error when runing etqw-demo
Quote

screenshot about the bug, there are black spots on the earth

ermacaz's i5-520M (Arrandale processor) = Ironlake Graphics (Gen5)
User avatar (0009230)
ermacaz (reporter)
2014-06-13 17:56

 Issue persists on kernel 3.13.0-27 with Mesa 10.1.3
User avatar (0009255)
Watermelon (developer)
2014-06-13 18:11

 Still the same in zan 2.0?
How about gzdoom...?
User avatar (0009261)
ermacaz (reporter)
2014-06-13 20:00

 With Zandronum v2.0-alpha - SVN revision 131102-1555 - SDL version
Compiled on Nov 5 2013

The issue persists.

I am unable to compile gzdoom to run when compiled following'http://zdoom.org/wiki/Compile_GZDoom_on_Linux [^]' - see a few posts above

Anyway as pointed out by SkyrimGuy it could be a Mesa bug and not zandronum. I am just keeping a log here of what Mesa versions I try and whether the issue persists
User avatar (0019402)
skyrimguy (reporter)
2018-08-25 23:28
edited on: 2018-08-25 23:31

 'https://www.mesa3d.org/relnotes/18.1.6.html [^]'

With Mesa 18.2.0-rc4 or 18.1.6 for my Intel Ironlake Graphics (Gen5), the graphical artifacts in OpenGL mode reported in this bug report no longer appear in Zandronum 1.2-130826-1853, 2.0-alpha-131102-1555 or even 3.0-170901-1140.

Distro: Debian Sid

$ uname -a
Linux 4.17.0-17.3-liquorix-amd64 #1 ZEN SMP PREEMPT liquorix 4.17-13.1~sid (2018-08-21) x86_64 GNU/Linux

$ glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile
OpenGL version string: 2.1 Mesa 18.2.0-rc4
OpenGL shading language version string: 1.20
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 18.2.0-rc4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16
OpenGL ES profile extensions:
User avatar (0019411)
Torr Samaho (administrator)
2018-08-26 17:44

 Thanks for the info! So I assume we can close this ticket, right?
User avatar (0019412)
ermacaz (reporter)
2018-08-26 18:17

 I no longer have the machine which experienced the problem. Feel free to close
User avatar (0019413)
Torr Samaho (administrator)
2018-08-26 19:36

 Will, do. Thanks for the feedback.

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- Issue History
Date Modified Username Field Change
2013-11-04 23:40 ermacaz New Issue
2013-11-04 23:42 ermacaz Note Added: 0007509
2013-11-05 19:23 Torr Samaho Note Added: 0007511
2013-11-06 00:04 ermacaz Note Added: 0007512
2013-12-03 17:01 ermacaz Note Added: 0007664
2013-12-03 17:03 ermacaz Note Edited: 0007664 View Revisions
2013-12-08 07:55 Torr Samaho Note Added: 0007673
2013-12-08 07:55 Torr Samaho Status new => feedback
2013-12-09 23:43 ermacaz Note Added: 0007691
2013-12-09 23:43 ermacaz Status feedback => new
2013-12-23 04:13 skyrimguy Note Added: 0007722
2013-12-23 05:42 skyrimguy Note Edited: 0007722 View Revisions
2013-12-23 05:49 skyrimguy Note Edited: 0007722 View Revisions
2013-12-23 06:17 skyrimguy Note Edited: 0007722 View Revisions
2013-12-23 06:25 skyrimguy Note Edited: 0007722 View Revisions
2013-12-23 06:36 skyrimguy Note Edited: 0007722 View Revisions
2013-12-23 07:46 skyrimguy Note Edited: 0007722 View Revisions
2014-06-13 17:56 ermacaz Note Added: 0009230
2014-06-13 18:11 Watermelon Note Added: 0009255
2014-06-13 18:11 Watermelon Status new => feedback
2014-06-13 20:00 ermacaz Note Added: 0009261
2014-06-13 20:00 ermacaz Status feedback => new
2018-08-25 23:28 skyrimguy Note Added: 0019402
2018-08-25 23:31 skyrimguy Note Edited: 0019402 View Revisions
2018-08-26 17:44 Torr Samaho Note Added: 0019411
2018-08-26 18:17 ermacaz Note Added: 0019412
2018-08-26 19:36 Torr Samaho Note Added: 0019413
2018-08-26 19:36 Torr Samaho Status new => closed
2018-08-26 19:36 Torr Samaho Resolution open => no change required




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