[ltp] DisplayPort on the T500

[Alex Deucher]

On Tue, Sep 1, 2009 at 3:49 AM, Mircea
Gherzan<mgherzan@anaconda.cs.pub.ro> wrote:
> Hello,
>
> Did anyone manage to get the DisplayPort output working? The T500
> (2082-6PG) sports the following ("switchable graphics"):
>
> 00:02.0 Intel Corporation Mobile 4 Series Chipset Integrated Graphics
> Controller (rev 07)
>
> 01:00.0 ATI Technologies Inc Mobility Radeon HD 3650
>
> I'm using a Delock DP->HDMI adapter. I'm running 2.6.31-rc8 and xorg
> 1.6.3.
>
> With the Intel (driver 2.8.1) using KMS (modeset 1 for i915), I get "DP1
> disconnected" in xrandr. Without KMS the DP output doesn't even show up
> in xrandr.

You might try a newer intel driver.  DP should be working.

>
> With the Radeon (driver 1.2.5-1 from Debian Sid and "Discrete
> graphics" in the BIOS) I get "DVI-D_1 disconnected" in xrandr.

radeonhd does not support displayport yet.  The radeon driver has
experimental support on the displayport branch of git:
http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/log/?h=displayport
However, it's not working 100% yet.

Alex