Subject: xorg-x11 wont support 1440x900
From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Date: 11/12/2007 9:07:13 PM
jamby <hoodcanaljim@usa.com> writes:
>Hi
>
> Hope this is the right group to post this.
>
>My Viewsonic VG1930wm won't display 1440x900, its preferred
>resolution.
>
>OS: Centos 5
>Video card: Intel 82865G
>Display: Viewsonic VG1930wm
>
>xorg.conf:
># Xorg configuration created by system-config-display
>
>Section "ServerLayout"
> Identifier "single head configuration"
> Screen 0 "Screen0" 0 0
> InputDevice "Keyboard0" "CoreKeyboard"
>EndSection
>
>Section "InputDevice"
> Identifier "Keyboard0"
> Driver "kbd"
> Option "XkbModel" "pc105"
> Option "XkbLayout" "us"
>EndSection
>
>Section "Device"
> Identifier "Videocard0"
> Driver "i810"
>EndSection
>
>Section "Screen"
> Identifier "Screen0"
> Device "Videocard0"
> DefaultDepth 24
> SubSection "Display"
> Viewport 0 0
> Depth 24
> Modes "1440x900" "1400x1050" "1280x1024" "1280x960"
>"1280x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
> EndSubSection
>EndSection
...
> But when I use the "system-admin-display" utility only 1280x1024 and
>below is shown. And the hightest resolution is always 1280x1024.
Well, if you showed us the /var/log/Xorg.0.log, we could say for sure,
but my guess is that the X server does not know a 1440x900 mode (and
the monitor does not report one, either; AFAIK that's not a standard
VESA resolution, and there is no EDID way to report such resolutions).
So what you have to do is to specify a mode yourself. Maybe something
like the following (adapted from a 1600x1200 mode):
Modeline "1440x900" 114.0 1440 1504 1696 2000 900 901 904 950
Put that line in the Section "Monitor" (which you apparently have to
create yourself, and reference in Section "Screen"). For an example
of how a config file with a Monitor section looks, see, e.g.,
<http://www.complang.tuwien.ac.at/anton/XF86Config.r1920> (if you take
that as example, you also want to copy the Section "Modes", and put
the mode line there).
If the mode is a little off, you can fine-tune with xvidtune.
- anton
--
M. Anton Ertl Some things have to be seen to be believed
anton@mips.complang.tuwien.ac.at Most things have to be believed to be seen
http://www.complang.tuwien.ac.at/anton/home.html
Subject: xorg-x11 wont support 1440x900
From: Bill Marcum
Date: 11/15/2007 2:43:15 AM
On 2007-11-15, jamby <hoodcanaljim@usa.com> wrote:
> Hi
> Sorry it took so long to get back, I've been swamped with honeydo's.
>
> I tried tweeking the xorg.conf to no avail so heres the output from
> the suggestion made.
>
>
> gtf 1440 900 75 -x:
>
> # 1440x900 @ 75.00 Hz (GTF) hsync: 70.50 kHz; pclk: 136.49 MHz
> Modeline "1440x900_75.00" 136.49 1440 1536 1688 1936 900 901 904
> 940 -HSync +Vsync
>
The logfile lists two modelines for 1440x900. Try one of those:
(II) I810(0): Modeline "1440x900" 106.50 1440 1528 1672 1904 900
903 909 934 -hsync +vsync
(II) I810(0): Modeline "1440x900" 136.75 1440 1536 1688 1936 900
903 909 942 -hsync +vsync
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