Re: latest radeon driver and full screen video

[Bob <spam@homeurl.co.uk>]

Romain JACQUET wrote:
> Bob a écrit :
> > Romain JACQUET wrote:
> > > Hello,
> > >
> > > When I play a video on the first screen, the video is fine. But I 
> > > want to play a video on the second screen, I choose
> > > the 16:9 aspect ratio in gmplayer, the video is shifted to the up of 
> > > the screen. It mean I see a black rectangular area on the bottom of 
> > > the screen.
8< snip

> > This *sounds* like you're having a problem where the screens have a 
> > different vertical resolution and since X deals with a rectangular 
> > virtual desktop [0] there is dead space above the second screen but 
> > the video output is centered vertically on the virtual desktop not 
> > the resolution of the screen.
> > You can probably tell mplayer to move things down, or you could get 
> > your second display to center on the virtual desktop using something 
> > like
> >        Option "CRT2Position" "LeftOf 176"
> > in your xorg.conf if you're using MergedFB, instead of 176 you'd use 
> > half the difference in vertical resolution between your primary and 
> > secondary displays.
8< snip

> First, I would like to thanks you for your answer.

My pleasure.

> More details:
> You're right, I'm using a non-rectangular configuration: 1280x1024 for 
> the first screen, 1360x768 for the second screen.
> I use a classical xorg.conf except that I add the Virtual keyword 
> (Virtual 2640 1024).
> I activate the second screen with something like:
>
>    * xrandr --output DVI-0 --auto
>    * xrandr --output DVI-0 --mode 1360x768
>    * xrandr --output DVI-0 --right-of VGA-0
>
> I'm using the latest radeon driver, which support randr 1.2. Before 
> this version, I was not able to use the second screen, because I could 
> not specify a modeline for the second screen. There was no 
> "CRT2Modeline" option...
> As far I understand, I think the mergedFB had no sense with randr 1.2. 
> Correct me if I'm wrong.

Ahh yes the xserver-xorg-video-ati package in testing is broken in more 
ways than one at the moment, and as a result I've not had any experience 
with xrandr and non matched screens [0] have you had a look at the 
thinkwiki page?
http://www.thinkwiki.org/wiki/Xorg_RandR_1.2
It's a bit Intel centric but good nonetheless, as for the CRT2Modeline 
option, I don't know if it has any relevance with xrandr but with 
MergedFB it goes in the Device section anyway as similar to xrandr there 
is no second Screen definition, try it.

> The strange thing is that mplayer correctly display films on the 
> second screen with the predefined aspect. *But* I change the aspect to 
> 16:9, the display is not good.

Why are you overriding the aspect of the film? have you tried mplayer 
settings like  monitorpixelaspect = 1 which tells mplayer that your 
display has square pixels?

> I will do more test tonight.

Good luck.

[0] I have a big CRT I run at 1600x1200 but I only pull it out if I'm 
doing a lot of photo editing, otherwise I'm on 2 1280x1024 LCDs