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-   -   External monitor not detected (Asus eeepc netbook, Ubuntu 12.04) (http://www.linuxquestions.org/questions/linux-laptop-and-netbook-25/external-monitor-not-detected-asus-eeepc-netbook-ubuntu-12-04-a-944238/)

mfan 05-10-2012 09:20 AM

External monitor not detected (Asus eeepc netbook, Ubuntu 12.04)
 
Hi, guys!

I have an Asus eeepc 1101ha netbook.
I installed recently Ubuntu 12.04 LTS.
The netbook has the Poulsbo graphics chip. I am using the PSB-GFX driver, having followed these instructions.
The netbook generally works well.

The problem: When I connect an external monitor, it is not detected.
The "displays" window shows only the internal monitor.
xrandr as well.
disper as well.

I have no /etc/X11/xorg.conf file.
Native resolution of the internal monitor is 1366x768.
Native resolution of the external monitor is 1024x768.

Code:

user@netbook ~ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation System Controller Hub (SCH Poulsbo) Graphics Controller (rev 07)
user@netbook ~

I tried to logout and login again having the external monitor connected, in order to see what happens. No difference.

I tried to reboot having the external monitor connected. The netbook starts in 1024x768 resolution (leaving a black stripe on the right of its internal screen!!) and duplicating the display and showing it correctly in the external monitor. (If I try to suspend, I lose the external after waking up, but this is another issue.)

So, the problem is in the driver, right? I actually don't have a driver choice for this netbook. Is there anything I can do?

Thanks in advance!
Manolis.

camorri 05-10-2012 09:58 AM

Many laptops and netbooks do not activate the external VGA port. Usually there is a hot key combination defined in the BIOS that activates the port.

I have a HP netbook, and to use the external port, I have to hit a Fn key plus F4 key. Have a look at the documentation for the hardware to see if you have such a combination.

mfan 05-14-2012 03:31 AM

Quote:

Originally Posted by camorri (Post 4675144)
Many laptops and netbooks do not activate the external VGA port. Usually there is a hot key combination defined in the BIOS that activates the port.

I have a HP netbook, and to use the external port, I have to hit a Fn key plus F4 key. Have a look at the documentation for the hardware to see if you have such a combination.

Haha, you are right. That's one of the obvious I didn't try.

For Asus eeepc 1101ha, the key combination is Fn+F8. But sadly, it does not do anything in Ubuntu 12.04. I just tried. )-:

camorri 05-14-2012 06:29 AM

You probably need to get the external monitor detected. Here are a couple of links that may give you some help.

http://askubuntu.com/questions/12122...l-on-boot-no-h

and...

http://maketecheasier.com/output-dis...ntu/2007/11/22

Try the command 'xrandr' in a konsole. See if you get something like 'VGA1 disconnected' If you do, then it is a case of getting the monitor detected. On modern xorg systems there are config files for the monitors. Its been a while since I ran Ubuntu, so I can not tell you the names of the files. Hopefully the above links will get your external monitor going.


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