Bug 13373

Created attachment 12707 [details]
Xorg-DVIA1 20071123

This is from a cold start.  Replacing DVI-D-1 with DVI-A-1 doesn't work.  Interestingly enough, the monitor does indicate that it's getting a signal, but nothing is displayed.  This is from the latest git.

I took out a potentional problem, please try again.

Created attachment 12708 [details]
Xorg DVI-A-1 20071124

Xorg comes up now.  Running xrandr --auto when I plug the second monitor in gives me "Input not supported", but thankfully I can still VT switch and kill the X server.

I have a vague idea what may be causing this, i'm working on it, but i need to make sure i introduce no holes into the system.

Give it another spin.

Created attachment 12722 [details]
Xorg log 2007 11 26

DVI-A-1 comes up fine, but when I run xrandr --auto, my monitor just shows "Input Not Supported", and pulling the cable reveals that there is no signal to DVI-D-0.

Please try again, i fixed something important (for your situation).

Created attachment 12727 [details]
Xorg 2007 11 26 (2nd attempt)

Exact same results as last time.

I spotted an even bigger bug, will have to think about how i fix this.

It should now set the vpll properly, which means your analog output should at least stay alive (i hope ;-)).

Created attachment 12736 [details]
2007 11 27 Attempt

Exact same result.  However, I did switch to a console and try to run xrandr.  I'll attach that to see if its helpful.

Created attachment 12737 [details]
xrandr output

I had to run this by switching to VT1 and running DISPLAY=:0 xrandr.  Don't know if this is helpful at all.

Maybe i "fixed" that first thing incorrectly, it still seems like your getting the wrong clock. So it's a wrong sel_clk or the order of clocks is the other way around.

There were a few significant bugs, please try again.

And yes, it did take this long :-(

Just recording that DVI-D-0 doesn't work now.
Here's a little chart of functionality:

• Cold Plugging
   ∘ ./ DVI-A-0+DVID1
   ∘ DVI-D-0
      ‣ No Signal
   ∘ ./ DVI-A-0
   ∘ ./ DVI-D-1
• Hot Plug
   ∘ DVI-D-1 hotplug DVI-A-0
      ‣ DVI-A-0 is corrupted
   ∘ DVI-A-0 hotplug DVI-D-0
      ‣ DVI-D-0: No Signal
   ∘ DVI-A-1 hotplug DVI-D-1
      ‣ DVI-D-1: No Signal

This was with todays version?

~ 8 AM Eastern Time.

There were some changes to tmds modesetting, so please try again.

Cold Plug
  ∘ ./ DVI-A-0+DVI-D-1 (RandR works, too)
  ∘ ./DVI-A-1
  ∘ X DVI-D-0
    ‣ Weird signal
  ∘ X DVI-D-1
    ‣ No Signal
Hot Plug
  ∘ DVI-D0 hotplug DVI-A-1
    ‣ weirder colors
  ∘ DVI-A-0 hotplug DVI-D-1
    ‣ No Signal
  ∘ DVI-A-1 hotplug DVI-D-0
    ‣ No Signal

Note that these results aren't consistant.  I've gotten DVI-D-0 to have a very odd looking output, or none.

Please post xlogs of at least the problematic output too.

I have discovered that a 7600gt only has one dual link transmitter, explaining why DVI-D-1 is less problematic.

I was wrong about that, the 7600gt actually has two dual link outputs.
But a new xorg log will reveal what is actually happening ;-)

There's been a slew of fixes, and i've had positive feedback about dual link dvi on a 7600gs. So give it another shot.

Please try again.

Created attachment 13184 [details]
2007 12 18

Still wrong colors; this is a log before a VT switch.

Created attachment 13185 [details]
2007 12 18 - VT Switch

Log after the VT switch, with colors fixed.

You have a reasonable chance now, we were not setting the default color palette on a modeset. So let me know if that works.

Created attachment 13346 [details]
Successful attempt 2007 12 24

It works now, with latest git.  No VT switch required.

Does this cover the known bugs for you (=can i close this bug)?