Arch Linux

barii

Member

Registered: 2009-04-09

Posts: 21

disable secondary screen

I have a notebook, and sometimes the screen flashing and a secondary screen appears:
http://img195.imageshack.us/img195/2672/kpernykp3.png
but a haven't secondary monitor.
I have tried to disable it, but some minutes after that it appears again.
how can i disable it?

Dell Latitude E5500 (Intel 4500MHD Graphics Accelerator)

Cyrusm

Member

From: Bozeman, MT

Registered: 2007-11-15

Posts: 1,053

Re: disable secondary screen

There are a quite a few things that you could try.

what I would do is put an xrandr entry in your .xinitrc

first run xrandr -q to get the name of the external interface (probably something like VGA_1, but it's different for every machine)

then put this line in your .xinitrc

xrandr --output <your output> --off

like I say, this is only one solution of many possible ones

Last edited by Cyrusm (2010-08-20 14:14:38)

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Hofstadter's Law:
           It always takes longer than you expect, even when you take into account Hofstadter's Law.

barii

Member

Registered: 2009-04-09

Posts: 21

Re: disable secondary screen

I run xrandr, and i got to know it is TV1 coused the problem. A googled it, and found the solution

http://wiki.archlinux.org/index.php/Intel

KMS Issue: console is limited to small area
One of the low-resolution video ports may be enabled on boot which is causing the terminal to utilize a small area of the screen. To fix, explicitly disable the port with an i915 module setting. For example, add the following to the end of the kernel line in /boot/grub/menu.lst:
video=SVIDEO-1:d
If that doesn't work, you may also try disabling TV1 or VGA1 instead of SVIDEO-1.

too easy:)
thank you

Last edited by barii (2010-09-01 08:50:57)