Bug Report [SOLVED] Window Capture Black Screen

[Monmon]

Good day,

I'm having trouble setting up Window Capture (Xcomposite) on my desktop. All I'm having is a black screen and it captures the mouse but if I add Screen Capture (XSHM) everything works. Although in my laptop Window Capture works fine and the os is also xubuntu 16.04.

My system is:
OS: Xubuntu 16.04
Proc: AMD FX 8150
GPU: Sapphire 7750
RAM: 8GB

Thank you in advance.

EDIT: Solved by checking "Use alpha-less texture format (Mesa workaround)

 

[gr78erw]

I updated my laptop to Ubuntu 16.04 and I now have this same problem. Screen capture works but window capture is all black. On Ubuntu 15.10 everything worked fine.

System:
Processor: AMD E1-2500 APU with Radeon(TM) HD Graphics
Physical Memory: 3219MB Total
Kernel Version: Linux 4.4.0-21-generic
Distribution: "Ubuntu" "16.04"
OBS 0.14.1 (linux)

My log file is full of these errors messages:

error: glCopyImageSubData failed, glGetError returned 0x502
error: device_copy_texture (GL) failed

Seems like an OpenGL error so I assume it's a driver issue? But as far as I can tell I just have a newer version of the same Mesa driver on 16.04. Here's the outputs of 'glxinfo | grep OpenGL' from both Ubuntu 16.04 and 15.10:

Ubuntu 16.04

$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD KABINI (DRM 2.43.0, LLVM 3.8.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.2.0
OpenGL core profile shading language version string: 4.10
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.2.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.0
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

Ubuntu 15.10

$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD KABINI (DRM 2.43.0, LLVM 3.6.2)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.0.2
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.0.2
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.0.2
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

Any help would be greatly appreciated!

 

[gr78erw]

EDIT: Solved by checking "Use alpha-less texture format (Mesa workaround)

Ooh, this works ty!

But damn that checkbox is well hidden. You guys might want to do something about it, lol.

 

[giacecco]

NOT SOLVED!!!

I've tried the "Use alpha-less" option with OBS 0.14.1 but I still see black windows. I'm using Fedora 23 on a Lenovo T450s (Intel graphics). Is there some other trick I should know about? Capturing the entire screen works fine.

 

[Leseratte10]

I'm using Ubuntu and I have the same issue. With OBS 0.13.1, the window was red, with the newest 0.14.1 it is black. The cursor is visible, but the window itself not, no matter if I enable or disable the Mesa fix.

Any idea why? Using screen capture and cutting it is not a good solution when I need to re-order my windows ...

 

[KynikossDragonn]

I had to do the following:

$ export MESA_EXTENSION_OVERRIDE="-GL_ARB_copy_image"

in order to get Xcomposite to work, this masks away that extension so OBS Studio can't even access or know it's there, I wasn't expecting this to work but it does for me.

I'm running Linux Mint 17.3 Rosa and a AMD BARTS (HD 6870), my driver comes from the ppa:oibaf/graphics-drivers

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD BARTS (DRM 2.40.0, LLVM 3.8.0)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.3.0-devel (git-9f8867d 2016-05-14 trusty-oibaf-ppa)
OpenGL core profile shading language version string: 3.30

 

[raptur]

Neither fix (checking the alpha-less option or the MESA_EXTENSION_OVERRIDE export), together or in isolation, works for me on Arch Linux with an Nvidia GTX 750 Ti, nvidia driver 364.19, and mesa 11.2.1

 

[Srinath]

Same as raptur here. On Arch:
GeForce GT 620
nvidia 364.19-3
obs-studio 0.14.2-1 (also tried obs-studio-git)
mesa 11.2.2-1

 

[rosshadden]

I have the same issue, also on Arch Linux. GeForce GTX 660 Ti.

 

[taiwbi]

It's 2022 and this bug has been reported since 2016 and still I have the same problem. What did its developers do these years?