[ltp] atitvout detecting tv - interesting finding

[Alex Deucher]

On Fri, 11 Mar 2005 14:51:15 +0100, Konstantin Filtschew
<konstantin.filtschew@gmail.com> wrote:
> hi,
> 
> I've updated to gentoo and x.org Now I can't use tv-out anymore on
> my T40.
> 
> How are your stepts to get tv-out working?
> 
> Do you use x.org or xfree?


the xorg 6.8.x radeon driver disables bios mode switching to keep it
from doing things behind it's back since xorg doesn't have acpi
support.  you can either use the radeon driver from 6.7 or xorg cvs
HEAD.  if you use cvs, you'll need to set the "bioshotkeys" option to
true.  Nightly cvs binary snapshots are available here:
http://dri.freedesktop.org/wiki/Download#head-55420c59a1c2e9a70f07a6fa02f0d228ffb87b76

Alex

> 
> Greetz
> 
> Konstantin
> 
> On Mon, 07 Mar 2005 14:54:26 +0100
> Nick Bower <nick@nickbower.com> wrote:
> 
> > I noticed on the weekend when getting a TV to work with my T42 (just
> the
> > Radeon7500) that doing a radeontool off then on with the TV connected
> > somehow allowed me to detect the connected TV without a sleep or
> reboot.
> >
> > In other words, doing a atitvout detect only showed the laptop's panel
> > with the TV connected at first (as expected), but then doing
> radeontool
> > off/on (I have this configured for the lid's acpi event so discovered
> it
> > by accident), the same atitvout detect command then showed the TV.  I
> > repeated this twice to verify and I report it here because I believe
> > that the current thinking on this subject requires the laptop to
> > hibernate or power-down/up to detect an attached TV.
> >
> > nick
> >