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Home > Archive > Red Hat Topics > October 2005 > What to do if you screw up the monitor settings.
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What to do if you screw up the monitor settings.
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| Mark Healey 2005-10-12, 5:59 pm |
| We are running a FC3 box where I work and the boss insist on having the
root password. Nothing I can do about that.
Today he decided he wanted to use a different screen resolution and used
the "Display" item under the "System Settings" menu to change it to a
setting that our monitor didn't support. All that was on the screen was a
monitor generated box saying that it doesn't support that setting.
Fortunately we had another monitor in the back room to hook up and change
it. This is an old monitor that is dying. How to I fix it next time it
happens.
--
Mark Healey
marknews(at)healeyonline(dot)com
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| David A' Rebel 2005-10-12, 5:59 pm |
| On Wed, 12 Oct 2005 05:36:16 +0000, Mark Healey spake thusly :
> We are running a FC3 box where I work and the boss insist on having the
> root password. Nothing I can do about that.
>
> Today he decided he wanted to use a different screen resolution and used
> the "Display" item under the "System Settings" menu to change it to a
> setting that our monitor didn't support. All that was on the screen was a
> monitor generated box saying that it doesn't support that setting.
>
> Fortunately we had another monitor in the back room to hook up and change
> it. This is an old monitor that is dying. How to I fix it next time it
> happens.
Edit the xorg.xonf from a tty, eg ctrl-alt F2. Either make the default
something you know it supports or delete the file and run
system-config-display and follow the prompts. If the display refuses load
when you run this you might need to ctrl-alt-F7 and kill x with
ctrl-alt-backspace
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| Frank Winans 2005-10-12, 5:59 pm |
| "David A' Rebel" wrote
> On Wed, 12 Oct 2005 05:36:16 +0000, Mark Healey spake thusly :
>
>
> Edit the xorg.xonf from a tty, eg ctrl-alt F2. Either make the default
> something you know it supports or delete the file and run
> system-config-display and follow the prompts. If the display refuses load
> when you run this you might need to ctrl-alt-F7 and kill x with
> ctrl-alt-backspace
Also, the quick workaround is to try doing repeatedly doing
ctrl-alt-The_plus_key_on_numeric_keypad which will step your "X" through the
configured pool of 'legal' screen resolutions; maybe one of the lesser ones
will work with the regular monitor. Give it a few seconds at each setting
to let the monitor try to sync up... That's probably file xorg.conf, not xorg.xonf, btw.
If you've doctored you /etc/inittab to give more than six text-only console screens,
then the ctrl-alt-F7 advice above will need to be adjusted to a higher "F" number to
reach the graphical console again... I usually leave F12 for X at our shop; F1 to 11
text.
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