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#1 2011-03-20 01:31:16

ausun
Member
Registered: 2011-03-17
Posts: 1

External monitor does not work

I just installed archlinux in my old samsung Q1U but I could not get my external monitor to work. It works well in Win7 and Puppy linux.
Here are some information maybe useful:

$ uname -r
2.6.37-ARCH
$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
$ pacman -Qs xf86-video-intel
local/xf86-video-intel 2.14.0-3 (xorg-drivers xorg)
    X.org Intel i810/i830/i915/945G/G965+ video drivers

Output of startx:

This is a pre-release version of the X server from The X.Org Foundation.
It is not supported in any way.
Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Select the "xorg" product for bugs you find in this release.
Before reporting bugs in pre-release versions please check the
latest version in the X.Org Foundation git repository.
See http://wiki.x.org/wiki/GitPage for git access instructions.

X.Org X Server 1.9.4.901 (1.9.5 RC 1)
Release Date: 2011-03-04
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.37-ARCH i686 
Current Operating System: Linux ausun-arch 2.6.37-ARCH #1 SMP PREEMPT Tue Mar 15 11:40:49 UTC 2011 i686
Kernel command line: root=/dev/disk/by-uuid/9426b159-0dc3-463b-a8e2-f9ad5d35a51c ro
Build Date: 14 March 2011  10:39:42AM
 
Current version of pixman: 0.20.2
    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sun Mar 20 17:14:59 2011
(==) Using config directory: "/etc/X11/xorg.conf.d"
(EE) Failed to load module "fbdev" (module does not exist, 0)

When the VGA cable is plugged in:

$ xrandr -q
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 4096 x 4096
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x600       59.7*+
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
TV1 unknown connection (normal left inverted right x axis y axis)
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  
TV2 unknown connection (normal left inverted right x axis y axis)
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  
VGA2 unknown connection (normal left inverted right x axis y axis)
   1680x1050      59.9 +
   1280x1024      75.0     72.0     70.0     60.0  
   1280x960       60.0  
   1024x768       75.1     72.0     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

When the VGA cable is not plugged in:

$ xrandr -q
xrandr: Output VGA2 is not disconnected but has no modes
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 4096 x 4096
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x600       59.7*+
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
TV1 unknown connection (normal left inverted right x axis y axis)
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  
TV2 unknown connection (normal left inverted right x axis y axis)
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  
VGA2 unknown connection (normal left inverted right x axis y axis)

It seems the system has detected the external monitor (VGA2) but cannot drive it. And I don't know what the VGA1, TV1 and TV2 stuffs are. How can I get through this situation?

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