I need some help running dual monitors in debian 7 wheezy
 

Hi all,

Today i was seting up a desktop so i can use it for some ham radio applications but i want to use two monitors i had laying around so after the install (btw i forgot to mention im using one gpu for one monitor and another gpu for the other monitor) i pluged in the monitors and on one it woked perfecly but on the other it displayed the boot up messages
(waiting for /dev to be populated etc.) and just stopped after Cheers,

Lukas

So you have 2 graphic cards and you want to use one monitor for each of them? Modern distros should recognize it automatically.
What cards do you have (what is lspci output?)
What drivers do you have?
What does xrandr tell you?

Yep I have it setup like you said
The cards are the nvidia GeForce fx 5200 and the GeForce mx/mx 400
I have not installed any drivers
Xrandr says

Hmm...

seems like only one video card is recognized, and only one output (VGA) of that card. It should also give you a list of various hdmi/dp/dvi ports that are not connected, depending on what ports does your cards have.

Does lspci show both cards?

I might next look into Xorg logs and kernel messages to check if both cards are recognized and what drivers are assigned to them.

I have only experience with 2 identical cards installed, I know that there might be issues if using different types.

Cheers,
Ott

Well one of the cards is only vga and the other is vga /dvi lspci does show both look here http://tinypic.com/r/106wk07/8

OK, so probably kernel finds both. What kind of driver is in use? Look at lsmod and either 'nv' (the old) or 'nouveau' (the new) nvidia driver. The closed source is called 'nvidia' afair.

Look also at /var/log/Xorg.0.log (or post it). It is a rather informative source, it also tells what happens with drivers etc. Do you also have other X logs like Xorg.1.log etc?

Nouveau is in use and here is the xorg log http://pastebin.com/tMis4SUm WOW that was long ok so from my understanding (Which is little to none because I dont mess around w/ X) Xorg is not seeing the scond monitor the AOC in the Xorg log is the one that does work

Thanks

Hmm... I don't see there any hint to your gf 5200. Line 172 indicates that it finds NV 11 chipset which is GF2 MX afaik. Does your bios support 2 graphics cards? Are both cards actually working?

Yes both are working because both monitors show things and for the bios I am pretty sure it does but I might be able to scrounge up a dual display gpu.

I am still worried X can only find a single graphics card. Look at the mine:
http://http://pastebin.com/H7PDSF65
intel integrated driver is initialized around line 485
Radeon G0 578
Radeon G1 624

Even if no monitors are present for the radeon cards, you can see a lot of talk with these cards. In your log X found two cards at pci:01:00 and pci:02:80 (or something like that). I don't know why does X not want to talk to the other card.

Does everything work perfectly if you insert each card individually? Do they work with both monitors?

Otherwise, I can only guess there are some sort of misunderstanding between bios, cards, kernel, and X11. You may attempt to try the newest and latest with e.g. ubuntu 15 live.

Ok yeah I have no idea what's going on and if only one gpu is in it works fine well I guess ill have to use a dual vga card th a thanks for the help


Lukas