Problems with external monitor

qiqiqi · 2012-06-13 20:10:27

Hi everyone,

I have HP 2133 Mini laptop and I am trying to connect an LG Flatron IPS225 monitor with a VGA cable. Without any setup the external monitor displays the same information as the laptop screen. I am encountering three problems:

1) Videos play fine on my laptop screen, but not at all on the external monitor.
2) The mouse cursor is a small black arrow (as expected) on my laptop screen, but a large fuzzy box that looks like TV static on my external monitor.
3) I can't configure resolution (or anything) of the external monitor - the computer seems to not see the external monitor.

I give you details of my graphics card:

$ lspci | grep VGA
01:00.0 VGA compatible controller: VIA Technologies, Inc. CN896/VN896/P4M900 [Chrome 9 HC] (rev 01)

I installed the openchrome driver. Here is my xorg.conf.

Section "Device"
	Identifier "VIA Technologies, Inc. CN896/VN896/P4M900"
	Driver     "openchrome"
	BusID      "PCI:1:0:0"
	Option     "monitor-VGA" "LG IPS225"
EndSection

Section "Monitor"
	Identifier "LG IPS225"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "VIA Technologies, Inc. CN896/VN896/P4M900"
        Monitor    "LG IPS225"
        DefaultDepth 24
        SubSection "Display"
                Depth     24
                Modes "1920x1080"
        EndSubSection
EndSection

The output of xrandr is shown below. It doesn't seem to pick up the external monitor.

$ xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 400, current 1024 x 768, maximum 1280 x 768
default connected 1024x768+0+0 0mm x 0mm
  1280x768       60.0
  1280x720       59.0
  1024x768       75.0*    60.0     70.0
  1024x600       59.0
  1024x576       60.0
  1024x512       60.0
  832x624        75.0
  800x600        75.0     60.0     56.0     72.0
  720x576        60.0
  856x480        60.0
  848x480        60.0
  800x480        60.0
  720x480        60.0
  640x480        75.0     60.0     73.0
  720x400        70.0

And finally here is my Xorg.0.log (which is double dutch to me).

http://pastebin.com/Nz9vq07b

Can anyone offer any help?

Inxsible was here

Last edited by Inxsible (2012-06-13 20:13:57)

Inxsible · 2012-06-13 20:12:44

qiqiqi, please use [ code ] tags when pasting snippets. It provides scrollers which makes it easier to read and potentially get help for your issue.

I have edited your post this time... Please read our forum etiquette from the wiki.

Welcome to the forums.

qiqiqi · 2012-06-14 17:36:46

Thank you, Inxsible. The [ code ] tags certainly make the post clearer.

I have now read the forum etiquette wiki page and I will abide by it in future posts.

Any help with my problem would be greatly appreciated. Even if you don't know the solution perhaps you can suggest something I can try that might shed more light on the issue.

qiqiqi · 2012-06-14 18:08:55

I have found a solution to the mouse cursor problem:

https://bbs.archlinux.org/viewtopic.php?id=64555

which is to set Option "SWCursor" in the device section of xorg.conf. In my case the relevant part of xorg.conf is:

Section "Device"
	Identifier "VIA Technologies, Inc. CN896/VN896/P4M900"
	Driver     "openchrome"
	BusID      "PCI:1:0:0"
	Option     "monitor-VGA" "LG IPS225"
        Option     "SWCursor"
EndSection

However, I am still having the other two problems. Any suggestions?

Last edited by qiqiqi (2012-06-14 18:09:44)

Mr.Elendig · 2012-06-14 20:03:58

I would contact the openchrome devs. Sadly via hardware is really bugged, and the state of the drivers isn't much better.

Last edited by Mr.Elendig (2012-06-14 20:04:24)

Arch Linux

#1 2012-06-13 20:10:27

Problems with external monitor

#2 2012-06-13 20:12:44

Re: Problems with external monitor

#3 2012-06-14 17:36:46

Re: Problems with external monitor

#4 2012-06-14 18:08:55

Re: Problems with external monitor

#5 2012-06-14 20:03:58

Re: Problems with external monitor

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