unable to restore desktop resolution on FC4

gopi.d · 03-02-2006, 05:32 AM

i have FC4 installed on my Intel D915GAV system, i use kde desktop environment as default desktop. when i changed the desktop resolution from 800x600 to 1024x768 the display went off with a message "sync out of range" my monitor is Samsung sync master 591s and is capable of 1024x768 resolutions at 70HZ refresh rate. i can't undestand why the display went out of sync and don't know how to restore the desktop to 800x600, i even tried restarting but didn't work. pls if any one knows how to change the display resolution help me.

rickh · 03-02-2006, 06:34 AM

Are you using Xfree86, or Xorg? Have you tried editing the configuration file?

gopi.d · 03-02-2006, 10:56 PM

i'm using xorg. i tried editing the config file but could not find it when running rescue mode. the display goes off immediatly after booting so could not open terminal
in normal mode. is there any any safe mode or vga mode like one in win XP for linux if there is any way to edit the configuration file.

gopi.d · 03-02-2006, 10:57 PM

i'm using xorg. i tried editing the config file but could not find it when running rescue mode. the display goes off immediatly after booting so could not open terminal
in normal mode. is there any any safe mode or vga mode like one in win XP for linux if there is any way to edit the configuration file.

Gethyn · 03-03-2006, 07:04 AM

Have you tried switching to a console (Ctrl-Alt-F1) to edit xorg.conf? Even if your X won't start, you should be able to get to a console.

gopi.d · 03-03-2006, 09:33 PM

hi thank you ctrl=alt-F1 worked i changed the xorg.conf and the desktop was restored. But in the xorg.conf file i found the color depth as 24 bits when i changed it to 32
the xserver failed again i restored it to 24. is there any way to change the desktop
color depth to 32 bits. my mother board is genuine Intel D915GAV and i'm using its onboard video card. the sound driver workek when i first installed fedora but after a few restarts i got a message like "the sound driver crashed while initiation" after that i could hear no sound. tell me how to fix the problem. i tried sound card detection and the sound card is detected but does not work.

TruongAn · 03-04-2006, 05:33 AM

How did you edit your xorg.conf file, please help me, I am going to the same problem and I know little about edit xorg.conf

Lenard · 03-04-2006, 06:48 AM

To gopi.d;

$ sudo system-config-display --help

Code:

Usage: system-config-display [OPTIONS]
Options:
  -h, --help        display this help and exit
  -v, --verbose     display what the program is doing more verbosely
  -o, --output=     the filename of the config file to be output
      --reconfig    don't base configuration on existing config files
      --noui        don't show the gui, implicit when using --set options
      --forceui     force the ui to be shown, needed when using --set options
                    to change some setting, but you still want to show the ui
      --set-<key>=  change the value of a specific configuration key.

        currently supported keys are:

        resolution  the screen resolution used
        depth       the color depth in bits
                    most drivers support 8, 15, 16 and 24
        driver      the graphics card driver to use
        card        the graphics card description to use
                    e.g. 'ATI Radeon (generic)'
        vsync       monitor vertical sync rates allowed (in Hz)
        hsync       monitor horizontal sync rates allowed (in kHz)
        videoram    the amount of videoram in kilobytes, 0 means probe

To TruongAn;

Any text editor (vi, ed, nano and many others) will work just fine. Have a look at the system-config-display --help command above also. And you may find additional help here (it is a bit old, but does apply);

http://www.redhat.com/docs/manuals/l...iguration.html

Gethyn · 03-04-2006, 07:22 AM

This might interest you with regard to 24-bit vs 32-bit colour. In short, 24-bit colour is fine, 32-bit is pretty much the same thing, and you won't see any difference.

TruongAn · 03-04-2006, 07:59 AM

OK, I knew how to open, edit the file, but what should I type in that file?
By the way, is there any way to do so without running system-config-display

Gethyn · 03-05-2006, 01:26 PM

TruongAn, what is the exact problem you are having?

jturnbul · 03-05-2006, 08:18 PM

Quote:

Originally Posted by gopi.d

1024x768 resolutions at 70HZ refresh rate.

I have to use 60 hz at that resolution for it to be clear.

Lenard · 03-05-2006, 08:34 PM

OK, try locking it to that rate, example;

Code:

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "LCD Panel 1280x800"
	HorizSync    31.5 - 90.0
	VertRefresh  60.0 - 60.0
	Option	    "dpms"
EndSection

TruongAn · 03-06-2006, 12:04 AM

Quote:

Originally Posted by Gethyn

TruongAn, what is the exact problem you are having?

I am playing with gentoo live CD
but it set my monitor resolution to 640x480.
It was too small, with that resolution almost all windows is to big to fit in the screen. I run gnome-display-properties but there is no other options to set.
I think change the xorg.conf and restart x may work
I only need it work for a sohrt time so that I can see the whole installer window rather the title bar only.

Gethyn · 03-06-2006, 12:06 PM

I've not used the Gentoo live CD, but in Knoppix I know you can pass an argument at boot time to specify the resolution you want, such as 'knoppix screen=1024x768'. Maybe there is an option to do this in Gentoo also?