X window does not open , i cannot use graphical mode

rajasekar19417 · 08-20-2009, 11:40 PM

Hi Friends,
What i did in linux server. previously i need see my desktop know i need to use mouse. so i change the resolution 1620x900 instead of 1440x900 then its says reboot the server, i did it. Thereafter monitor displays "cannot display this video mode optimum resolution 1440x900 60hz".

i'm using only terminal mode right now, using- ctr+alt+f1.

Important : I'm using " Red Hat Enterprise 5.1 ".

Note : My monitor is Dell 19" LCD.

Thanks and Regards
Rajasekar.N

micxz · 08-20-2009, 11:58 PM

how about "xrandr" run that get available resolutions and then for example xrandr -s 1024x760 . Also check out what's in /etc/X11/xorg.conf

rajasekar19417 · 08-21-2009, 12:06 AM

how do i check "xrandr"?

rajasekar19417 · 08-21-2009, 12:08 AM

its say " can't open display "

chrism01 · 08-21-2009, 12:13 AM

Try

X -probeonly

Also, post your distro & version for better advice.

micxz · 08-21-2009, 12:31 AM

Quote:

Originally Posted by rajasekar19417

how do i check "xrandr"?

That's a command you can type in your terminal.

Quote:

its say " can't open display "

The command? or when you try to start X?

rajasekar19417 · 08-21-2009, 12:45 AM

@micxz

if i typed("xrandr") in terminal it says"can't open display".
and if i typed in terminal(# startx)command .

i got this Error Message:

hostname: Host name lookup failure
xauth: creating new authority file /root/.serverauth.7128

Fatal Server error:
Server is already active for display 0
if this server is no longer running, remove /tmp/.X0-lock
and start again.

Xlib: connection to ":0.0" refused by server
Xlib: Invalid MIT-MAGIC-COOKIE-1 key giving up.
xinit: unable to connect to X server
xinit: no such process (error 3): Server error.

micxz · 08-21-2009, 01:26 PM

I see you will need to kill the current X process(s) and try again. If your not sure how to do this you should reboot.

rajasekar19417 · 08-25-2009, 08:34 AM

Still I'm using terminal mode , i'm not get into the graphical mode. i'm logging in single user mode only. how to set the resolution again