external monitor won't show higher resolutions

T4x series specific matters only
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harbong
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Location: Hays, KS

external monitor won't show higher resolutions

#1 Post by harbong » Wed Aug 06, 2008 1:07 pm

hello again,

I have a DVI 1600x1050 LCD hooked up via a dock to my t42. however, when I choose any resolution higher than 1280x1024 the monitor scales it so the edges scroll to the sides of the screen's image. is there a driver or ati app that I need to install, or a procedure to turn this feature off and fit the resolution to the entire screen?
I had a t40 hooked up to the same dock and monitor before it died and had no problems (and I think these have the same graphics card as well)

thanks for any help you can offer!

basketb
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#2 Post by basketb » Wed Aug 06, 2008 4:58 pm

Have you tried the Presentation Director?

SteveS
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#3 Post by SteveS » Wed Aug 06, 2008 8:37 pm

If you check the specification sheet:
http://www-307.ibm.com/pc/support/site. ... MIGR-57839
You will see that resolutions beyond XGA are supported only with panning mode.
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Harryc
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#4 Post by Harryc » Wed Aug 06, 2008 8:47 pm


sjthinkpader
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#5 Post by sjthinkpader » Wed Aug 06, 2008 10:00 pm

Some of the dock DVI ports have 1280x1024 resolution limitation.

http://www-307.ibm.com/pc/support/site. ... MIGR-46393

Look at the DVI Note after the Features section.
T60p 2623-DDU/UXGA IPS/ATI V5200
T60 2623-DCU/SXGA+ IPS/ATI X1400
T43p 2668-H8U/UXGA IPS/ATI V3200
R50p 1832-NU1/UXGA IPS/ATI FireGL T2
X61t 7762-B6U dual touch IPS/64GB SSD
X32 2673-BU6/32GB SSD
755CDV 9545-GBK Transmissive Projection LCD

fasterbybike
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#6 Post by fasterbybike » Wed Aug 06, 2008 10:07 pm

Thinkwiki has a good explanation and work arounds for the limitationsof some Thinkpads' DVI output.
W520, X301, T500, (past X61( SXGA+),T42P,SL500, A31, R52, T42,X32(SXGA+), T40P,A31P, A21P, 770Z)
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harbong
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Joined: Sat Nov 18, 2006 10:47 am
Location: Hays, KS

#7 Post by harbong » Wed Aug 06, 2008 10:31 pm

what's weird is that t40 could always display 1600x1050 on this monitor and dock, it wasn't until I got the t42 that it started.
yes, even with the presentation director it limits it to 1280.
I may have had the omega drivers on my t40, I remember installing something like that at some point in the 4 years I had it. I will try those tonight and get back.

harbong
Posts: 18
Joined: Sat Nov 18, 2006 10:47 am
Location: Hays, KS

#8 Post by harbong » Thu Aug 07, 2008 1:09 pm

the omega drivers did the trick!
thanks for all the helP!

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