Re: LCD monitor, DVI connection, resolution problem

Henrik Carlqvist wrote in comp.os.linux.hardware:

I have tried to configure an Eizo L768 19" LCD monitor connected to a
MSI RS482M4-ILD motherboard with Radeon Xpress 200 chipset and built
in graphics. The motherboard has a DVI port which I want to use. I
have installed Slackware 10.2 with X.org 6.8.2 and am using the VESA
driver as the ati driver is unable to identify the graphics chipset.

Try a newer X.org.

[snip]
In Xorg.0.log I get the following:
[snip]
(II) VESA(0): Supported VESA Video Modes:
(II) VESA(0): 720x400@70Hz
(II) VESA(0): 640x480@60Hz
(II) VESA(0): 800x600@60Hz
(II) VESA(0): 1024x768@60Hz

Looks bad. Maybe there is no VESA 1280x1024 mode.

(II) VESA(0): Manufacturer's mask: 0
(II) VESA(0): Supported Future Video Modes:
(II) VESA(0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897

Hmm. Your guess is as good as mine. How would you specify
video mode number 32897?

[snip]
Later in the log, different modes get listed like this:

-8<---------------------------------------------------
*Mode: 114 (800x600)
-8<---------------------------------------------------

The above is an example of a mode which I am able to use,

How did you request this mode?

it is marked
with an asterisk at the beginning of the line.

Does the asterisk indicate a default mode? What else does it
say near this in the log?

-8<---------------------------------------------------
Mode: 11a (1280x1024)
-8<---------------------------------------------------

The above is probably the mode that I would like to use, but it isn't
marked with any asterisk. Some modes get an explanation why they cant
be used:

-8<---------------------------------------------------
*(II) VESA(0): Not using built-in mode "640x400" (vrefresh out of
range) -8<---------------------------------------------------

However, 1280x1024 doesn't get any such explanation.

Explicitly include a 1280x1024@60 mode line in your configuration
file. (/etc/X11/xorg.conf or similar.)

Try;

# 1280x1024 @ 60.00 Hz (GTF) hsync: 63.60 kHz; pclk: 108.88 MHz
Modeline "1280x1024_60.00" 108.88 1280 1360 1496 1712 1024 1025 1028 1060 -HSync +Vsync

or;

Mode "1280x1024" # vfreq 60.020Hz, hfreq 63.981kHz
DotClock 108.000000
HTimings 1280 1328 1440 1688
VTimings 1024 1025 1028 1066
Flags "+HSync" "+VSync"
EndMode

[snip]
(II) VESA(0): Not using mode "1280x1024" (no mode of this name)

You definitely need to explicitly include a mode definition
in xorg.conf.

(--) VESA(0): Virtual size is 1024x768 (pitch 1024)

You did not specify a Virtual size in xorg.conf did you?
I don't think that you need to specify one, but if you do
make sure that it is at least as big as 1280x1024.

(**) VESA(0): *Built-in mode "1024x768"
(**) VESA(0): *Built-in mode "800x600"
(**) VESA(0): *Built-in mode "640x480"
(--) VESA(0): Display dimensions: (380, 300) mm
(--) VESA(0): DPI set to (68, 65)
(II) VESA(0): Attempting to use 60Hz refresh for mode "1024x768" (117)
(II) VESA(0): Attempting to use 60Hz refresh for mode "800x600" (114)
(II) VESA(0): Attempting to use 60Hz refresh for mode "640x480" (111)
-8<---------------------------------------------------

Why does it say "no mode of this name" for 1280x1024? What was wrong
with mode 11a? I have also tried to manually enter modelines to
xorg.conf, but this didn't help.

What did you enter into xorg.conf? It might be necessary to
include a "UseModes" line (or similar - man xorg.conf) with the
*exact* mode names that you want, like "1280x1024_60.00".

Does anyone have any ideas?

regards Henrik


--
Peter D.
Sig goes here...
.

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