#762376 xserver-xorg-video-radeon: kaffeine not working woth radeon but with intel graphics

Package:
xserver-xorg-video-radeon
Source:
xserver-xorg-video-ati
Description:
X.Org X server -- AMD/ATI Radeon display driver
Submitter:
M G Berberich
Date:
2014-09-29 02:09:05 UTC
Severity:
normal
#762376#5
Date:
2014-09-21 16:24:28 UTC
From:
To:
Dear Maintainer,

on a Intel Core i7 4770 system with a Radeon R7 240 graphics card,
kaffeine does not work properly when the displays are connected to the
radeon. In this case kaffeine does not show video.

If the displays are connected to the Intel HD onboard-graphics
kaffeine works fine and shows video.
#762376#10
Date:
2014-09-22 06:20:49 UTC
From:
To:
Please provide the /var/log/Xorg.0.log file from using the Radeon GPU.

Any terminal output from kaffeine would be interesting as well.
#762376#15
Date:
2014-09-28 19:02:54 UTC
From:
To:
Hello,

Am Montag, den 22. September schrieb Michel Dänzer:
That’s a Radeon R7 250 – sorry.
Attached.

	MfG
	bmg
#762376#20
Date:
2014-09-29 02:07:38 UTC
From:
To:
[...]

[...]

[...]

Looks like kaffeine tries to use VDPAU with the Radeon GPU, but fails.
Can you clarify with someone knowledgeable about kaffeine whether it
falls back to XVideo in that case, or how you can explicitly choose XVideo?

What does

	xdpyinfo -queryExtensions|grep 'opcode: 151'

say?