DVI-D cable and Xorg

[ferg]

Hi all,

My Mythtv box is currently outputting to a LG RZ-32LZ55 32" LCD TV using a Radeon 9250 card. Currently I'm using a DVI-I cable from the DVI of the radeon to the DVI of the TV.

Now I have a much longer DVi cable that I want to use. However, the cable is DVI-D. When I plug in this cable I get a picture OK, until XORG starts, then it goes black.

DVI-D is supposedly digital only, and I found that apparently the TV will only accept a DVI analogue signal, which would make sense. However, to be honest I do not understand as it's supposedly HD (1080i) and used HDCP in the DVI input (the newest version of this TV is HDMI instead).

I also don;t understand this as I can get a console picture fine. It's only when XORG loads that the picture goes.

So my question is, am I jst lacking sufficient knowledge of DVI signals, in expecting this longer cable to work, or is there any options to XORG which would help?

I don't really want to spend 30/40 UK pounds on a new 5M DVI-I cable.
Cheers
ferg
_________________
Climb up it, kayak down it + make sure it runs on GNU/Linux
"cease to exist, giving my goodbye, drive my car into the ocean,
you think I'm dead, but i sail away, on a wave of mutilation!"

[ferg]

well so far I have found that the cable does work, so the telly does accept a DVI-D signal. So far so good!

However, I had to switch to using the radeon driver in XORG, rather than the fglrx one. After a reboot the machine now shows a blank screen whenever I start X.

Back to the drawing board...

Cheers
Ferg
_________________
Climb up it, kayak down it + make sure it runs on GNU/Linux
"cease to exist, giving my goodbye, drive my car into the ocean,
you think I'm dead, but i sail away, on a wave of mutilation!"