Neil Booth wrote:-

> I have a similar problem.
> 
> I recently bought a TFT display, and I have connected both the digital
> and analogue outputs of the graphics card to the display.  When I start X,
> the digital output is blank exactly as you describe above.  However,
> because I have the analogue connection, the monitor "fails over" to it,
> and I can continue to interact with the system.  Without the VGA input
> I'm stuffed as you describe above.
> 
> Here's the curious thing: fixing it is a matter of switching back to
> console from VGA, and then back to X again.  This resets something
> somewhere, and I can now select the DVI input on the screen and get
> a nice digital input.  I have no idea if this is caused by X or the
> kernel.  I built both about 2-3 weeks ago.

FWIW this isn't fixed even when disabling all X modules and with the
latest wsmux.c.  The digital DVI input only works every other time.
Does no-one else see anything like this?

Neil.