[Openchrome-users] some issues related to tv out (still colored vertical stripes, video timings)

Thomas Hellström thomas
Wed Mar 22 06:27:29 PST 2006


spam at muenchen-ist-toll.de wrote:

>Hi all,
>
>currently I am trying to get an EPIA SP13000 to work as a media center and as 
>a file/mail/firewall/Dsl.. whatever server.
>
>One of the first things I want to go about is the S3 UniChrome driver with its 
>hw / mpeg accel.
>
>So I installed Ubuntu (Dapper Drake) and the latest unichrome driver 
>package (trunk, Rev. 175) on my box. 
>
>The installation did fine. Building / installing the driver succeeded and the
>3D / Video acceleration works perfect.
>(again, many thanks to the openchrome developers / volunteers)
>
>Now, I have the problem with colored, vertical stripes on the tv output.
>This bahavior was already mentioned in the blog / mailing list some time ago,
>and it was supposed to be gone. But in my case it isn't.
>
>The stripes are only displayed if I adjust the bios setting "Video Display" to 
>"CRT". When I use "CRT + TV" (bios) tv out works correct.
>  
>
Hmm, I know I've explicitly tried that on my EPIA SP13000 and it worked. 
Could you post your Xorg.0.log. (gzipped!)

>I want to avoid this combination (CRT + TV) because then, the timing of the 
>signal for tv out and the connected CRT (flat panel display) seems to be the 
>same and gives some stress to my FP display during boot.
>(VRefresh: 50Hz Tv = Ok, CRT = *Doohh*, NOT Ok)
>
>This leads me to the next question.
>Is there a way to adjust separate timings at the same resolution for tv out 
>and CRT?
>  
>
Yes, but not with current openchrome. The hardware supports it, but it 
is not implemented.

>AFAIK the Openchrome driver ignores modeline settings in xorg.conf.
>  
>
Yes, if you use TV-OUT. Not with CRT only.

>Compared to a previous installed Windows XP the display for both devices were 
>just fine (without stressing my FP display).
>
>How can I archieve modes like 1024x768 for tv out without messing around with 
>h/v frequencies? /var/log/xorg.log says that only modes like 800x600Over and 
>less are available.
>
>  
>
Have you checked virtual size and such? The available TV-out modes are 
listed in the man-page. Also the tv-out documentation in the wiki may be 
helpful.

>Maybe I am missing somewhat... any help is highly appreciated.
>
>Thanks in advance,
> Thorsten
>
>
>Specs of my box / setup
>-----------------------
>
>Hardware:
>EPIA SP13000 (CN400, VT1623)
>Samsung 80Gb at SATA port
>RealTek Pci NIC
>LiteOn/JLMS DVD drive
>(everything assembled in a nice Antec minuet 2 case :-)
>
>Connections:
>TFT (analog input) as CRT at VGA port
>Pal TV as TV at S-Video port
>
>Software:
>Ubuntu (Dapper Drake, all updates applied)
>Openchrome (Trunk, Rev. 175)
>
>Settings:
>Bios ->
> Display Device/Output/Layout/Norm: CRT/S-Video/S-Video/PAL
>
>Framebuffer ->
> vesafb, vga=791
> 
>xorg.conf -> 
> Option "ActualDevice" "CRT"
> Option "TVNorm" "PAL"
> Option "TVOutput" "S-Video"
> 
> Depth 24
> Mode "720x576Over"
>
>_______________________________________________
>openchrome-users mailing list
>openchrome-users at openchrome.org
>http://wiki.openchrome.org/mailman/listinfo/openchrome-users
>Main page:
>http://www.openchrome.org
>Wiki:
>http://wiki.openchrome.org
>User Forum:
>http://wiki.openchrome.org/tikiwiki/tiki-view_forum.php?forumId=1
>
>  
>





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