Bug 81689

Summary: Black screen in info-beamer
Product: Mesa Reporter: Sven Arvidsson <sa>
Component: Drivers/Gallium/r600Assignee: Default DRI bug account <dri-devel>
Status: RESOLVED NOTOURBUG QA Contact:
Severity: normal    
Priority: medium CC: vliaskovitis
Version: 10.2   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description Sven Arvidsson 2014-07-23 20:26:56 UTC 
The multimedia presenter info-beamer ( http://info-beamer.org/ ) just renders a black screen with r600g. 

It's working fine with software rendering and on Intel hardware.

Not a regression, or at least present in Mesa 9.2.

I've made an apitrace of one of the beamer demos:
https://my.owndrive.com/public.php?service=files&t=cef11b335be2741058363783176b14cd

The trace renders correctly but gives a lot of errors, so this might be a bug in info-beamer:

0 87813 glGetUniformLocation(program = 0, name = "Color") = -1
87813: warning: glGetError(glGetUniformLocation) = GL_INVALID_VALUE
87872: glDebugOutputCallback: High severity API error 1, GL_INVALID_OPERATION in glReadBuffer(buffer=0x405)
87872: glDebugOutputCallback: High severity API error 1, GL_INVALID_OPERATION in glDrawBuffer(buffer=0x405)
0 87872 glPopAttrib()
87872: warning: glGetError(glPopAttrib) = GL_INVALID_OPERATION
87882: glDebugOutputCallback: High severity API error 1, GL_INVALID_VALUE in glGetUniformLocation


System environment:
-- system architecture: 32-bit
-- Linux distribution: Debian unstable
-- GPU: REDWOOD
-- Model: XFX Radeon HD 5670 1GB
-- Display connector: DVI
-- xf86-video-ati: 7.4.0
-- xserver: 1.16.0
-- mesa: 10.2.4
-- drm: 2.4.54
-- kernel: 3.13
Comment 1 Vasilis LIaskovitis 2015-07-07 15:09:47 UTC 
This also happens with radeonsi and very recent mesa.

Link to ticket from infobeamer's bug tracker:
https://github.com/dividuum/info-beamer/issues/28

System environment:
-- system architecture: 64-bit
-- Linux distribution: Ubuntu 14.04 with ppa:oibaf/graphics-drivers
-- GPU: Pitcairn XT 
-- Model: Radeon HD 7870 GHz Edition
-- Display connector: HDMI
-- xf86-xorg-video-ati: 1:7.5.99+git1506291932.fc07c3~gd~t
-- mesa: 10.7~git1507051930.fc2726~gd~t
-- libdrm: 2.4.62+git1506301830.676c80~gd~t
-- kernel: 3.19.0-21-generic

Other drivers (i965 nd fglrx) display infobeamer output.
Comment 2 Sven Arvidsson 2018-03-07 19:44:27 UTC 
Retested with Mesa 17 on radeonsi and info-beamer from Debian (1.0pre3+Lua) everything seems to be working.

Presumably fixed on the info-beamer side, so I'm closing this.

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