[mythtv-users] ATI xpress 200 fglrx TV-out w/ custom modeline?

Kevin Hulse jedi at mishnet.org
Tue Jul 18 12:53:09 UTC 2006


> 
> Hello,
> 
> I didn't get any response on the ubuntu forums (
> http://www.ubuntuforums.org/showthread.php?t=3D216954 ) , so trying
> here:
> 
> I've an ASROCK 776 twins HDTV  (
> http://www.asrock.com/product/775Twins-HDTV.htm ) motherboard with
> integrated Radeon Xpress 200 graphics, w/ _component_ tv out. I got it
> running nicely on my HDTV under XP using powerstrip and generated a
> modeline info as follows:
> 
> 
> Code:
> PowerStrip timing parameters:
> 1920x1080=3D1920,133,40,331,1080,4,10,31,154338,9
> 
> Generic timing details for 1920x1080:
> HFP=3D133 HSW=3D40 HBP=3D331 kHz=3D64 VFP=3D4 VSW=3D10 VBP=3D31 Hz=3D57
> 
> VESA detailed timing:
> PClk=3D154338.00 H.Active=3D1920 H.Blank=3D504 H.Offset=3D117 HSW=3D40
> V.Active=3D1080 V.Blank=3D45 V.Offset=3D4 VSW=3D10
> 
> Linux modeline parameters:
> "1920x1080" 154.338 1920 2053 2093 2424 1080 1084 1094 1125 interlace +hsyn=
> c +vs
> I'm running the following fglrx drivers:
> 
> 
> Code:
> mythtv at htpc:~$ fglrxinfo
> display: :0.0  screen: 0
> OpenGL vendor string: ATI Technologies Inc.
> OpenGL renderer string: RADEON XPRESS 200 Series Generic
> OpenGL version string: 2.0.5814 (8.25.18)
> ...and at the bottom is my unadulterated xorg.conf. Could someone
> please tell me what I need to add to get it outputting to my TV?

	Have you tried using aticonfig yet?

	I believe the TV has to be on and connected to the 
vidcard when the machine is booted in order for the drivers to use 
it. The binary nvidia drivers are the same way on my laptop when it
comes to external monitors.

[deletia]

	Based on my experience with the LCD monitor and this 
chipset, what I would do (and what I will eventually get around 
to trying) is to put in all the different possibile combinations 
of valid resolutions like so 

	Modes    "1366x768" "1280x720" "1024x768" "640x480"


and then let the hardware try and sort itself out.

	At least so far with the LCD panel, the hardware and
xorg seem able to sort everything out on it's own. That Modes
line will cause modelines to be automagically generated for
all resolutions that are valid for the hardware.
 
	See what /var/log/Xorg.0.log has in it.


More information about the mythtv-users mailing list