LinuxQuestions.org
Help answer threads with 0 replies.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices


Reply
  Search this Thread
Old 02-06-2015, 04:16 PM   #1
sycho123321
Member
 
Registered: Apr 2012
Distribution: Debian, LFS!, Linux Mint
Posts: 208

Rep: Reputation: Disabled
Question 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
Code:
 waiting for /dev to be fully  populated
Cheers,

Lukas

Last edited by sycho123321; 02-06-2015 at 04:36 PM.
 
Old 02-07-2015, 08:02 AM   #2
otoomet
Member
 
Registered: Oct 2004
Location: Tartu, Ċrhus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619

Rep: Reputation: 45
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?
 
Old 02-07-2015, 11:11 AM   #3
sycho123321
Member
 
Registered: Apr 2012
Distribution: Debian, LFS!, Linux Mint
Posts: 208

Original Poster
Rep: Reputation: Disabled
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
Code:
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096
VGA-2 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 340mm x 270mm


1280x1024                60.0*+    75.0
1024x768                 75.1      70.1     60.0
832x624                  74.6
800x600                  72.2      75.0     60.3    56.2
640x480                  72.8      75.0     66.7    60.0
720x400                  70.1

Last edited by sycho123321; 02-07-2015 at 11:15 AM.
 
Old 02-07-2015, 11:23 AM   #4
otoomet
Member
 
Registered: Oct 2004
Location: Tartu, Ċrhus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619

Rep: Reputation: 45
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
 
Old 02-07-2015, 11:50 AM   #5
sycho123321
Member
 
Registered: Apr 2012
Distribution: Debian, LFS!, Linux Mint
Posts: 208

Original Poster
Rep: Reputation: Disabled
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
 
Old 02-07-2015, 12:31 PM   #6
otoomet
Member
 
Registered: Oct 2004
Location: Tartu, Ċrhus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619

Rep: Reputation: 45
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?
 
Old 02-07-2015, 01:07 PM   #7
sycho123321
Member
 
Registered: Apr 2012
Distribution: Debian, LFS!, Linux Mint
Posts: 208

Original Poster
Rep: Reputation: Disabled
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
 
Old 02-07-2015, 10:31 PM   #8
otoomet
Member
 
Registered: Oct 2004
Location: Tartu, Ċrhus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619

Rep: Reputation: 45
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?
 
Old 02-07-2015, 11:36 PM   #9
sycho123321
Member
 
Registered: Apr 2012
Distribution: Debian, LFS!, Linux Mint
Posts: 208

Original Poster
Rep: Reputation: Disabled
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.
 
Old 02-09-2015, 12:47 AM   #10
otoomet
Member
 
Registered: Oct 2004
Location: Tartu, Ċrhus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619

Rep: Reputation: 45
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.
 
Old 02-14-2015, 10:23 AM   #11
sycho123321
Member
 
Registered: Apr 2012
Distribution: Debian, LFS!, Linux Mint
Posts: 208

Original Poster
Rep: Reputation: Disabled
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
 
  


Reply

Tags
debian stable, gpu, monitor


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] Now I've done it - Debian dual boot (Sid, Wheezy) grub overwritten, lost Wheezy? ShaneRoach Debian 23 02-02-2014 02:28 PM
Synaptic running problem in Debian 7/Wheezy kcredden Debian 16 08-28-2013 08:44 AM
Running Dissimilar Dual Monitors Woodsman Slackware 1 10-04-2009 12:05 PM
Dual Monitors with extended desktop on laptop running FC8 SimGuy Linux - Hardware 2 01-21-2009 09:55 PM
Running dual monitors, performance problems cav Linux - General 1 07-27-2003 04:15 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 03:30 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration