-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Warren Post
Sent: Tuesday, December 04, 2001 12:49 PM
To: newbie
Subject: [newbie] XFree86 gamma adjustment
I need help adjusting the gamma of my monitor. I've tried four methods
without success:
(1) The man page for XF86Config(5) documents the optional entries "Gamma
x" or Gamma r g b" in the XF86Config file which should set the monitor's
gamma (x, r, g, and b being between 0.1 and 10.0, default 1). I tried
both variants as root but nothing happened either time... but since the
man page warns that "Not all drivers are capable of using this
information," I assume I'm out of luck here. Has anyone had luck with
these entries?
I have not one but three XF86Config files, not counting backups:
/etc/XF86Config
/etc/X11/XF86Config
/etc/X11/XF86Config-4
I assume that multiple files are to provide different configurations
under different circumstances. In any case I edited them all
identically.
For what it's worth, "XFree86 -version" reports:
XFree86 Version 4.1.0 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 2 June 2001
Build Operating System: Linux 2.4.8-5mdkenterprise i686 [ELF]
Module Loader present
(2) My display adapter is a SiS620, which is supported by XFree86. Just
for laughs I downloaded and installed the 620 driver from SiS (yes, they
have Linux drivers) but there's no change.
(3) The man page for XFree86(1) documents the command line switch
-gamma. I normally work in X, so first I tried switching to tty1 with
Ctrl-Alt-F1, logging in as another user, and entering "XFree86 -gamma
9.0", which returned:
Fatal server error:
Server is already active for display 0
I thought it was possible to run multiple instances of X, but I clearly
did something wrong here. (I'd like to know what, as eventually I will
want to have multiple instances... but that's another issue.)
Then, I changed my boot configuration to not boot into X, rebooted and
logged in, and gave the above command. X hung: the same moiré pattern
appeared that always does when X is starting, but hung there. The result
is the same when I simply enter "XFree86" from the command line without
the -gamma switch.
(4) From an xterm, I gave the command "xgamma -gamma 9.0", which
returned:
Xserver is running an old XFree86-VidModeExtension version (0.8)
Minimum required version is 2.0
I did a web search on the above message but the only hits I found were
for dead (404) pages.
Ideas, anyone? I'm stumped, and in the meantime I'm stuck with a barely
legible display.
--
Warren Post
Santa Rosa de Copan, Honduras
http://www.srcopan.vze.com/
Warren, have you tried to adjust manually on the monitor itself?
mine all have the capability to set or adjust rgb and gamma manually with push buttons on the monitor case. Maybe that will get you a better screen. Dennis M.
