Re: I killed my monitor!!

["Salman Ahmed" <ssahmed@pathcom.com>]

>>>>> "B" == Brad  <lists@anomie.dhis.org> writes:
    B>  Start xvidtune from a console/xterm window. Press the "show"
    B> button. It will output the current modeline to the console/xterm.

The loaner monitor that I have been given is a lowly 14" that is able to
manage 1024x76@24bit. I selected the following profile from xf86config
to setup this monitor:

6  31.5 - 48.5; Non-Interlaced SVGA, 1024x768 @ 60 Hz, 800x600 @ 72 Hz

Just to test Nate's theory about the X server selecting the first
ModeLine that matches the specified resolution, I repeated the grep on
my current XF86Config file this time for "1024x768":

@phoenix:[/home/ssahmed] grep Modeline /etc/X11/XF86Config | grep 1024x768 | more
Modeline "1024x768"    44.9  1024 1048 1208 1264   768  776  784  817 Interlace
Modeline "1024x768"    65    1024 1032 1176 1344   768  771  777  806 -hsync -vsync
Modeline "1024x768"    75    1024 1048 1184 1328   768  771  777  806 -hsync -vsync
Modeline "1024x768"    85    1024 1032 1152 1360   768  784  787  823
Modeline "1024x768"   98.9  1024 1056 1216 1408   768 782 788 822 -HSync -VSync
Modeline "1024x768"   115.5  1024 1056 1248 1440  768  771  781  802 -HSync -VSync


Notice the first ModeLine line specifies the Interlaced mode. Then I ran
xvidtune and selected the "show" option to see what modeline the X
server was currently using. Here is the output from xvidtune:

@phoenix:[/home/ssahmed] xvidtune 
Vendor: ACER, Model: 34T
Num hsync: 1, Num vsync: 1
hsync range 0:  31.50 -  48.50
vsync range 0:  50.00 -  70.00
"1024x768"     65.00   1024 1032 1176 1344    768  771  777  806 -hsync -vsync

So, it seems that the X server doesn't use the first modeline that it
finds in the XF86Config file. So it seems that I hadn't selected the
interlaced mode setting for my obviously faulty ADI monitor before.

Once I get my ADI monitor back and I have set it up for 1280x1024 @
60Hz, I will comment out the interlaced modelines in XF86Config myself
just to make sure those modelines are never used.

Thanks guys for your very enlightening replies.

Regards,

-- 
Salman Ahmed
ssahmed AT pathcom DOT com