Re: Cannot get resolution just by edit /etc/XF86Config PLS help.
On Thursday 27 January 2005 23:25, わさびぃ wrote:
>So sorry to have embarrased you,
>by writing in a wrong lang.
>I have Debian sarge installed
>in second PC. chipset is
>845GE and my graphical board
>is on-board controled.
>With Knoppix the setting is OK
>(1280x1024 resolution is acquired)
>But with Debian sarge only
>800x600 is selectable via
>This is true even after I edited
>to "1280x1024" "1024x786"...etc
>I have not got anymore clue.
>Please supply hints to get
>better resolution than 800x600
Well, this is about what you would expect if the monitor selection
made when installing it wasn't properly setup. X then picks defaults
that will not damage an vga monitor and that restricts your choices.
I'm not sure of the name of the setup program to rerun on sarge, just
having come in from the red hat crowd, but there is an ncurses based,
run it with x stopped, program that can do this. I think perhaps
when it ran during the install, you did not scroll down thru the
brand name list it displayed, and then clicked on the smallish right
arrow adjacent to the brand name, which when clicked on, opens a
sublist of the various known models made by that maker, and you can
then scroll down thru that list until your model number has been
found. That is then translated into a range of sync frequencies that
monitor can safely support.
Failing that, there is another screen where you can enter the ranges
of the vsync and hsync it can accept. You cannot normally seriously
damage a monitor by selecting too high an hsync rate, but you can
certainly let the smoke out by selecting one thats too low, so
generally speaking, never select a low range under 30 kilohertz.
Similarly, you may possibly damage the vertical circuitry in some
poorly built monitors by selecting a vsync low range of less that 50
hz. That makes for lots of flicker too.
Generally, all that happens if the hsync is set too high is a lowering
of the available high voltage and the subsequent lowering of the
britness and possibly a bit out of focus. If you encounter those
symptoms, stop x, and reset that hsync setting down by a few
kilohertz and try again. If you get down to say 40 kilohertz, and it
still looks a bit woozy, then it may be time for a more capable
monitor as many of the newer tube models can run at well above 90
kilohertz. Even the venerable NEC 5FG in front of me has been
running at 69 kilohertz & 1600x1200 for better than 10 years now, and
it still looks as fresh as new.
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
99.32% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com attorneys please note, additions to this message
by Gene Heskett are:
Copyright 2005 by Maurice Eugene Heskett, all rights reserved.