Re: how can I get X to auto-detect flat panel??
From: Dances With Crows (danSPANceswitTRAPhcrows_at_usa.net)
Date: 08/05/04
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Date: 5 Aug 2004 19:06:37 GMT
[ Followup-to: set to comp.os.linux.x ]
On 5 Aug 2004 13:33:27 -0500, Daniel Miller staggered into the Black Sun
and said:
> I'm using SuSe Linux 9.1. We do our development with normal CRT
> displays, but ship our product with a 15-inch flat panel.
So, does every version of this product have the same type of LCD
connected?
> documentation that I've read suggests that Linux/X will, during
> startup, automatically detect the frequencies that the connected
> monitor can support, and set itself to such a setting.
Nope. X tries, but some monitors don't report EDID info or report bad
EDID info. Which X server are you using, anyway? Have you looked in
/var/log/XFree86*.log for the logs that X writes? The first (EE) line
from that file and some context for it would be useful to see.
> When we hook up the flat panel and boot, it just boots up displaying
> "input signal is out of range". Of course, at this point, there's
> little we can do to reset anything, since we can't display a valid
> screen.
Ctrl-Alt-F[1-6] should get you to a text console, where you can run a
text-based X configuration tool like YaST or xf86config or X -configure
. If your /etc/inittab doesn't start mingettys or agettys on tty1-tty6,
you need to fix your /etc/inittab so that it starts at least one getty
until this problem is fixed. If no gettys are started, you may have to
boot the system with "linux init=/bin/sh" so you can get in there, fix
inittab with vi or pico, and reboot.
> Is there something I can set in X so that it *will* auto-detect the
> monitor's capabilities???
If all your machines have the same video chipset and the same monitor,
you can create one XF86Config file using an X configuration tool and use
it on all your machines. If they all have the same monitor but
different video chipsets, you can use the same Monitor section for all
your machines.
-- Matt G|There is no Darkness in Eternity/But only Light too dim for us to see Brainbench MVP for Linux Admin / mail: TRAP + SPAN don't belong http://www.brainbench.com / Hire me! -----------------------------/ http://crow202.dyndns.org/~mhgraham/resume
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