Ubuntu 9.10 Resolution Problem

AxlD · 10-30-2009, 09:51 AM

My system specs are:

CPU: AMD Phenom II 965 3.4GHz Black Edtion
MoBo: ASUS Crosshair III Formula
RAM: Corsair Dominator DDR3 3X2GB 1600MHz
GPU: Sapphire Radeon Vapor-X HD 4890 2GB GDDR5
HDD1: WD 500GB Black Caviar
HDD2: WD 1TB Green Caviar
Case: CoolerMaster Haf 932 Black Case
PSU: Crosshair CMPSU-650TXEU 650W
Monitor: Samsung Syncmaster P2370

And right now I'm using Ubuntu 9.10 64bit.

Having Ubuntu 9.04, openSuSe 11.1 and Linux Mint, and after the intallation of the Ati drivers (using the Hardware Manager either the manual installation) I was not able to setup a resolution of 1920x1080 in my monitor. Also for a reason unknown to me (and everyone else I asked) when I typed in the terminal "aticonfig" or "aticonfig --initial) the response was: "aticonfig: no supported adapters detected".
Not to mention the watermark in the down-left corner of my screen saying: "AMD Not supported hardware"

I just installed Ubuntu 9.10 Karmic Koala and what is changed is that the command "aticonfig" works!!! But the command "aticonfig --initial" does NOT!!! :'( :'( :'(
Also I don't get the annoying watermark anymore.

After I installed the FGLRX driver though the Hardware Drivers section my xornf.conf looks like this:

Code:

Section "Screen"
        Identifier      "Default Screen"
        DefaultDepth    24
EndSection

Section "Module"
        Load    "glx"
EndSection

Section "Device"
        Identifier      "Default Device"
        Driver  "fglrx"
EndSection

Also I have to say that I have the same problem in Windows, only the problem is fixed when I install the Monitor Driver from Samsung. Before the installation of the monitor driver, the max reso I can have is again 1600x1200 but after that I can have 1920x1080. So I suppose that I have to force the monitor the reso I want somehow...

please, PLEASE, help deal with this really frustrating problem. Excuse my english and thank you in advance...

Wim Sturkenboom · 10-30-2009, 10:08 AM

Code:

Section "Screen"
        Identifier      "Default Screen"
        DefaultDepth    24

        SubSection     "Display"
            Depth       24
            Modes      "1920x1200" "1680x1050" "1440x900" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
        EndSubSection

EndSection

You can try to add the bold part to your screen section; adjust the resolutions to those that you want (you can omit and add). Make a backup of xorg.conf first!
Restart X with <alt><printscreen>k

PS just to make sure: you need root permissions to edit xorg.conf

AxlD · 10-30-2009, 11:26 AM

Hi and thanks for the quick response. I have edited and saved the xorg.conf file. But after the reboot I still have no 1920x1080 option. Because I'm a newbie, I'll describe you what have I done exactly in case I did something wrong

I opened the terminal, used the command:

Code:

gksu gedit /etc/X11/xorg.conf

to open xorg.conf with gedit. I modified the file as instructed by you and saved the file. I rebooted but I still have not the option of 1920x1080.

I opened xorg.conf after the reboot and this is it:

Code:

Section "Files"
EndSection

Section "Module"
	Load  "glx"
EndSection

Section "ServerFlags"
	Option	    "Xinerama" "off"
EndSection

Section "Device"
	Identifier  "Default Device"
	Driver      "fglrx"
EndSection

Section "Screen"
	Identifier "Default Screen"
	DefaultDepth     24
	SubSection "Display"
		Depth     24
		Modes    "1920x1080" "1680x1050" "1440x900" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
EndSection

Any ideas?

Excuse my newbieness... :P

Wim Sturkenboom · 10-30-2009, 11:47 PM

OK, next step is to create a section monitor

Code:

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

The values for HorizSync and VertRefresh must match the specification of your monitor; the given values are for my 17" CRT.
Check the documentation of your monitor. HorizSync is expressed in kiloherz (kHz) and VertRefresh in herz (Hz).

PS monitors don't use drivers; the 'driver' is actually a file that tells windows which capabilities the monitor has.