Video mode 1280X1024 not listed, but monitor is very capable of it.

[zaphod]

My LCD monitor currently sits on a KVM switch, and the windows box that is hooked to that does 1280x1024@60Hz just beautifully...

Kubuntu, however, will not let me change up to that resolution, and maxes out at 1024X768... this makes for some fuzzy graphics.

How can I add that mode, and set it? Monitor is a Dell 1704FPT, and 60Hz would be fine enough (and easier on the 'tronics). Machine is a Dell Optiplex 745, With a 2GHz Core 2 Duo, and 4 gigs of RAM.

Thanks,
Zap

[vinnywright]

what dose

xrandr --query

say

VINNY

[zaphod]

It says:

$ xrandr --query
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 32767 x 32767
VGA1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0* 
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Zap

[bweinel]

It may well be that your monitor is not the issue, but rather your video card....
Try running the following to determine what type of video card you have installed:

sudo lshw | grep -A 20 display

You should then be able to determine if its able to display the desired resolution.

cheers,
bill

[vinnywright]

xrandr -s 1280x1024

try it and see ,,,,,,,,just set it back to 1024x768 if it dose not work out .

VINNY

[zebedeeboss]

using xrandr the long way may help

I always use xrandr in a terminal when a Distro plays up and or can't quite work out what I have.

start by typing xrandr and seeing what it recognises. normally I get VGA-0 or 1 or 2 depending on the Distro's mood
then I get DVI-D-1 and DVI-D-2 (using three monitors here)

The next thing to do is to get the right tech description of the resolution you require - you do this by typing in a terminal

cvt 1920 1200

(substitute the desired res you want ie cvt 1280 1024 and use the output from your terminal as they will differ from mine)

you will then get something like

# 1920x1200 59.88 Hz (CVT 2.30MA) hsync: 74.56 kHz; pclk: 193.25 MHz
Modeline "1920x1200_60.00"  193.25  1920 2056 2256 2592  1200 1203 1209 1245 -hsync +vsync

now all you actually need from this is

1920x1200_60.00  193.25  1920 2056 2256 2592  1200 1203 1209 1245 -hsync +vsync

please note the removal of the " around the screen size
you next tell yr system that you have this resolution available by typing

xrandr --newmode 1920x1200_60.00  193.25  1920 2056 2256 2592  1200 1203 1209 1245 -hsync +vsync

then you tell it what screen it applies to

xrandr --addmode VGA-1 1920x1200_60.00

then you tell the screen to use the new resolution

xrandr --output VGA-1 --mode 1920x1200_60.00

I usually find arandr is best to then move the screen to where I want them. You can use additional xrandr commands but I never learned them. you may find you need to install arandr as most Distro's have their own variation.

Hope this helps

[zaphod]

@zebedeeboss Just what the doctor ordered! Your commands (and a swat of the auto-position/synch button on my monitor) worked PERFECTLY. It's really a blessing when someone takes the time (and makes it devilishly simple) to help a n00b like me. Reminds me of what I do on a nearly daily basis on my website. Looks like a good command to really RTFM deep on is xrandr!

Oh, and to the people on this forum that have been having problems with my software, it's because some "friendly" URLs have some keywords that are close to hypothetical SQLi attacks. We are mothballing these signatures, and the problem should vaporize early next week.

Once again, thanks for the great help!

73,
Zap

[zaphod]

Footnote on the above...

Since I am using a KVM switch going between a windows box, and this Kubuntu box, the pressing of the auto adjust button was getting OLD fast. Well, I went online how-to, and manual diving, and found a reference to this program called "PowerStrip" in regards to obtaining modelines... this page tells all about it: http://www.x.org/wiki/FAQVideoModes/#index4h2. So I followed their advice, and cloned my windows box timings to the Kubox.

VERY CLOSE... but no cigar, not good enough for me.

So I went and actually tweaked the windows box to synch it up perfect, and compared the assumed, to the needed match (showed +7 to align), reset the windows box to what it was, and inverted the offset (-7 on the 2 horizontal timings), and applied that to yet another mode. PIXEL PERFECT!!! Now I can flip the KVM back and forth, and all is beautiful! Now all I have to do is figure out how to delete the un-needed modes, and all will be right in the world.

73,
Zap

(edit: P.S. Please close topic as solved!)