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# Radeon TV-Out
In 2007 Alex Deucher added preliminary TV-Out-support based on the gatos-code to the randr12-branch of the ati-driver. The branch has now been merged to the [[git HEAD of xf86-video-ati|http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/]].
## Driver Releases
Starting from the 6.7.191 pre-release the X.org ati driver supports TV-Out on selected cards. That means stable version [[6.8.0|http://xorg.freedesktop.org/releases/individual/driver/xf86-video-ati-6.8.0.tar.bz2]] and newer have the support. A new enough driver is also included starting in eg. Fedora 8 and Ubuntu 7.10.
## How to build
See [[RadeonTVbuildHowto|RadeonTVbuildHowto]].
## How to use
You can enable TV-Out either dynamically (by issuing commands to the running X server) or statically (through the xorg.config file, before starting the X server). For testing, the dynamic method is probably easier.
### How to use: R5xx / R6xx / R7xx
Newer R600 / R700 series cards (Radeon HD X2000 - X4870) need this option in xorg.conf:
* [[!format txt """
Option "ATOMTvOut" "TRUE"
"""]]
The same Option can be applied to R5xx cards too (or at least some of that series). It has been checked to work on x1650 (RV530LE) - this line really needed to detect S-Video tv-out.
### Enabling TV-Out Dynamically
TV-out may be enabled by using a recent driver and xrandr utility:
1. xrandr --addmode S-video 800x600
1. xrandr --output S-video --mode 800x600
1. xrandr --output S-video --set "tv standard" ntsc
### Enabling TV-Out Statically
Several options need to be specified. See the radeon(4) manpage for a description. In particular, you must set "TVStandard" to match your flavour of video.
This recipe is not definitive, but it has worked.
In the "Device" section:
* [[!format txt """
Driver "radeon"
Option "TVDACLoadDetect" "TRUE"
Option "TVStandard" "ntsc"
Option "monitor-S-video" "TV-monitor"
"""]]
In the "Monitor" Section:
* [[!format txt """
Option "PreferredMode" "800x600"
"""]]
In the "Screen" section:
* [[!format txt """
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "800x600"
EndSubSection
"""]]
## History
### How we got here from the GATOS Patch
There was a very old effort by the gatos-project to support TV Out on ATI Radeons. It was GPL-licensed in the past, but in 2007 all authors agreed with relicensing under MIT-license, so that it was brought to a xf86-video-ati's branch and later on merged to the main driver.
[[randr-1.2 branch of xf86-video-ati|http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/log/?h=randr-1.2]]
[[arklinux-patch (latest)|http://arklinux.org/~bero/xf86-video-ati-6.6.192-tvout.patch]]
[[Gentoo bug with updated patch|https://bugs.gentoo.org/show_bug.cgi?id=127642]]
[[Update to below patch by Wei-Tsun Sun|http://www.ece.auckland.ac.nz/~wsun013/tvout/index.html]]
[[Patch up to xorg 7.0 by Rune Petersen|http://megahurts.dk/rune/tv_output.html]]
[[Original gatos code|http://gatos.sourceforge.net/theater_out.php]]
#### Relicensing
[[Frederico Ulivi (original author) agreed to relicense the code under a MIT-license (which allows inclusion in the xorg-driver)|http://sourceforge.net/mailarchive/forum.php?thread_name=20070612082434.HM.0000000000001On@fulivi.bos-mail-wwl15.lycos.com&forum_name=gatos-devel]]
[[All others agreed to the relicensing|http://sourceforge.net/mailarchive/message.php?msg_name=200707250044.20812.ml@hboeck.de]]
### atitvout
On some older cards the tv out can be enabled with atitvout, which is not developed anymore:
[[atitvout by Lennart Poettering|http://0pointer.de/lennart/projects/atitvout/]]
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