Unknown type of monitor

kojot · 06-23-2009, 04:22 PM

Hi,

I have a monitor - LG FLATRON 19" L1915S
When I select System->Preferences->Display (GNOME) I see UNKNOWN type of monitor.

screenshot:

Click image for larger version

Name: Screenshot.png
Views: 33
Size: 42.4 KB
ID: 866

What should I do to setup the real type of monitor?

bitpicker · 06-24-2009, 09:07 AM

The situation was similar for me when I set up Ubuntu 9.04 recently; I have a Flatron L1953T and it was listed as unknown, resolution was a meagre 800x600 or so. But that went away when I installed the proprietary nvidia drivers, so if that's a viable solution for you, you can try the ati radeon drivers. Now with the nvidia drivers in place the settings tool your screenshot shows does not work on my system anymore, when I call it up it asks me whether I would like to use the nvidia tool instead.

Robin

z-vet · 07-13-2009, 04:08 AM

I have same problem with MAG AI2237W 22'. Any workaround?

J.W. · 07-13-2009, 10:57 AM

Not all models of monitors and/or manufacturers will be present in your distro's list. However, as long as you specify the appropriate horizontal and vertical refresh rates in your xorg.conf file (which should be in the /etc/X11 directory) you should get good performance from them.

For the Flatron, from what I could find, the specs are:

Synchronization Range - Vertical 56 - 75 Hz
Synchronization Range - Horizontal 30 - 83 kHz

For the MAG, the specs are:

Horizontal Freq. (KHz) 30~82KHz
Vertical Freq. (Hz) 56~75Hz

That's just from a Google search, please check the user manual to confirm

Wim Sturkenboom · 07-13-2009, 11:41 AM

And this is where it should go

Code:

Section "Monitor"
    Identifier     "Generic Monitor"
    HorizSync       27.0 - 96.0
    VertRefresh     50.0 - 160.0
    Option         "DPMS"
EndSection