stillunknown asked me if starting up nouveau on DVI-A-1 worked (from cold start). It doesn't. Curiously enough, DVI-D-1 works, as well as DVI-A-0 (DVI-D-0 works as well). This could explain a lot concerning why dual-head wasn't working for me.
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)?
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