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-   -   Black screen after changing resolution to 1600x1200 (

maxp 02-26-2004 07:33 PM

Black screen after changing resolution to 1600x1200
After I change my screen resolutions to 1600x1200, X boots into a black screen.
I have a Dell Latitude C840. I remember setting the HorizSync to 59-85 and VertRefresh 40-90 by google (I couldn't find the information anywhere on my manuals).

Anyway, I can ctr+alt+f1 to console but got no idea what to do next. any help will be greatly appreciated!

-complete noob

Andrew Benton 02-26-2004 08:09 PM

At the command prompt try xf86config

maxp 02-26-2004 08:26 PM

I got command not found :(

Andrew Benton 02-26-2004 08:52 PM

Well maybe it's not in your $PATH. Try entering the full path with the command

kenlin 02-27-2004 06:54 AM

1600x1200 on a laptop? Are you certain it's capable of displaying that resolution? Can you do it in windows?

maxp 02-27-2004 04:27 PM

Yep, that's my LCD's natural resolution. RH9 refuses to work in 1600x1200. Aggghhhh

JaseP 02-27-2004 05:43 PM

What chipset does your video use??? Is it the Radeon 7500 series like in the C640???

maxp 02-27-2004 11:25 PM

I have the geforce 4 440 go

jon-do 02-29-2004 11:05 AM

Try this to get you to a starting point at the cml

XFree86 -configure
XFree86 -xf86Config /root/
cp /etc/X11/XF86Config

If you see a blank sceen with an X cursor, type ctrl-alt-backspace to get back to the terminal

or before you do the above, go to /etc/X11/
and see if you have an XFree86Config.* and just copy that file to XFree86Config.
Basically everytime you make an adjustment, the old XFree86Config file is save as XFree86Config.*

Hope this helps

upchucky 03-24-2004 02:28 AM

At command line, find and cd to #etc/X11
edit XF86config using vi. (find instructions on using vi) it is very simple, there are four commands you need to know.
to open the file, vi /etc/X11/XF86config

[ i ] inserts text
[ esc ] exits insert mode
[ :q! ] abandons all edits and exits to command line
[ ZZ ] saves all edits and exits to command line
always remember to [ esc ] , and all commands are case sensitive.

change horiz to 49-70
change vert to 49-70
Change size to 1024*768

startx, then if it fails
keep changing these settings until it works.

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