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Re: video overlay on external display with Radeon Mobility M6 LY

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martin f krafft wrote:
> Hi,
> I am trying to hook a Sony Vaio running Debian lenny with a Radeon
> Mobility M6 LY to a projector to demonstrate some animations, using
> the xv extension.
> The basic device section in xorg.conf, as autodetected, is:
>   Section "Device"
>     Identifier  "Generic Video Card"
>     Driver      "radeon"
>     BusID       "PCI:1:0:0"
>   EndSection
> This causes the screen to be cloned to the external display, but any
> window in which xv is being used is just blue (which is the
> projector default/null colour) on the external display.

I had/have the same problem with my Thinkpad R51

16:21:04-jw@johannes2:~$ lspci |grep ATI
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R250
[Mobility FireGL 9000] (rev 02)

The proprietary OS on that computer had the inverse problem, ie. the
movie/animation was just displayed on the projector, not on the lcd

I figured at the time that it is possibly a hardware problem, ie. that
the graphics card cannot resize a moving picture instantly to the 1400
resolution of the lcd and the 1024 resolution of the projector and
didn't persue this further. Maybe I am wrong.

> Using OpenGL as the output driver works. Unfortunately¸ the
> programme I have to use does not support OpenGL, only xv.
> I get the same results using "ati" as Driver instead of "radeon".
> After searching the web, I tried using the "OverlayOnCRTC2" option,
> but apparently that's not in use anymore:
>   (WW) RADEON(0): Option "OverlayOnCRTC2" is not used
> I managed to use xvattr to switch the overlay between the two
> screens but I wonder whether it would be possible to get overlay on
> *both*n screens?

I should have known about xvattr then, in order to at least have the
movie show up on the right display. How did you use xvattr to switch the



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