LinuxQuestions.org
Did you know LQ has a Linux Hardware Compatibility List?
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices



Reply
 
Search this Thread
Old 07-08-2010, 09:03 AM   #1
simopal6
Member
 
Registered: Jun 2006
Location: Italy
Distribution: Slackware 13.1
Posts: 218

Rep: Reputation: 30
How to know which video card is being used on a notebook with two cards?


Hello!
I have this Asus UL30VT notebook, with two video cards, an Nvidia G210M (which apparently isn't supported by Nvidia for Linux, but I've read somewhere that it's possible to make it work) and an Intel card (I can't find the model name). On Windows, it is possible to switch between these two cards for battery saving reasons. Anyway, I don't really care about this on Linux. I would just like to make the Nvidia card work somehow.
One of my doubts is: how do I know if Linux is detecting both video cards? Both cards are listed by lspci:
Code:
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
01:00.0 VGA compatible controller: nVidia Corporation Device 0a74 (rev a2)
and I'm quite sure Linux is currently using the Intel card, because I have no xorg.conf file, and the X log says:
Code:
(II) LoadModule: "intel"
(II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
(II) Module intel: vendor="X.Org Foundation"
        compiled for 1.7.6, module version = 2.11.0
        Module class: X.Org Video Driver
        ABI class: X.Org Video Driver, version 6.0
What I'd like to know is, how can I make sure whether Linux is correctly detecting the Nvidia card or not? Is lspci enough?
And if we suppose that Linux is aware of the presence of the Nvidia card, how do I know which card it's using? Right now I can infer it's using the Intel card from the X log, but is there any other way (I don't know, any "/proc/..." files) to know?

I'm sorry if the post is a bit confusing, but I'm confused as well :-)
Thanks!
 
Old 07-08-2010, 01:35 PM   #2
Hewson
Member
 
Registered: Feb 2007
Location: /home
Distribution: Kubuntu and CentOS
Posts: 214

Rep: Reputation: 32
lspci is enough.
the X log file is your best bet.

I'd try a bare bones xorg.conf of just this:
Code:
Section "Device"
        Identifier  "Videocard0"
        Driver      "fglrx"
        BusID       "PCI:1:0:0"
EndSection
NOTE: fglrx is the driver for ATI cards, you'll need to figure out the name of nvidia driver and put it there.

Last edited by Hewson; 07-08-2010 at 01:37 PM.
 
Old 07-08-2010, 04:59 PM   #3
thorkelljarl
Senior Member
 
Registered: Jun 2008
Posts: 1,743

Rep: Reputation: 196Reputation: 196
You heard wrong...

The Nvidia G210M is listed as supported.

http://www.nvidia.com/object/linux-d...35-driver.html

Open the Supported Products link.

You can use the command "lshw" to see what hardware information is available to linux and thereby identify your Intel chip, and "lsmod" to see what modules are being loaded for the graphics, that is, either a module for Intel or for Nvidia(nv).

http://linux.die.net/man/1/lshw

http://linux.die.net/man/8/lsmod

Last edited by thorkelljarl; 07-08-2010 at 07:16 PM.
 
Old 07-10-2010, 04:10 AM   #4
simopal6
Member
 
Registered: Jun 2006
Location: Italy
Distribution: Slackware 13.1
Posts: 218

Original Poster
Rep: Reputation: 30
You were right... I had probably read out-of-date information. Anyway, I managed to make the Nvidia card work. I've also found out a way to check whether the Intel or Nvidia card is enabled (only one of them works at a time in Linux, according to some BIOS SATA settings), that is by checking lspci: if the Nvidia card is enabled, the Intel card isn't even listed; so this allowed me to write a script that modifies the xorg.conf file and some other GUI-related files according to the driver in use.
Anyway, thanks to everyone for your help!
 
  


Reply


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
2 Video Cards/ OpenSuSE 10.3/ Only one card works... micro2 Suse/Novell 1 02-22-2008 01:01 PM
Video driver for notebook Sony Vaio FR130. abarriosp1 Red Hat 1 10-05-2005 05:37 PM
FC4 Video and Audio with Compaq Presario 2200 notebook pembo13 Linux - Laptop and Netbook 5 08-26-2005 07:54 PM
FC3 + Pavilion zx5000 notebook + video troubles CrashTECH Linux - Laptop and Netbook 0 04-05-2005 10:56 AM
Problem with notebook video drivers nads General 7 04-07-2004 12:42 AM


All times are GMT -5. The time now is 10:23 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
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration