Can't get 1680x1050 output to an external monitor on a Toshiba M400 (intel 945GM)

Hello,

I'm struggling to get a 20" wide monitor to work with a Toshiba M400. I don't have any wide resolution available. The monitor is well recognised and this mode is seen by windows, but the limitation is on the graphic part. The intel driver seems to be locked to 4/3 resolutions.
I've tried to play with Powerstrip, but custom resolution don't work with Intel chipset.
OS is Windows XP tablet Edition, fully patched uptodate drivers.

I know this is a common problem with Intel graphic chipset, haven't find a solution yet.

Regards,

Thomas BRESSE
EZTomsAsked:
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rindiCommented:
The only thing that can help here is for you to look for other drivers. If no drivers exist for your needs then your out of luck. If you can find beta drivers those might help.
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jamietonerCommented:
according to intel the card should support up to 2048x1536 external resolution and states that it support widescreen so it may be a problem with the driver toshiba is offereing, Heres a link to the driver from intels site http://downloadfinder.intel.com/scripts-df-external/confirm.aspx?ftpDown=ftp://aiedownload.intel.com/df-support/10302/a08/win2k_xp1420.exe&agr=N&ProductID=2102&DwnldId=10302&strOSs=All&OSFullName=All%20Operating%20Systems&lang=eng
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EZTomsAuthor Commented:
I've tried to install those, but it doesn't add wide resolution. I believe Toshiba must provide updated drivers. :/
I do have up to 2048x1536, but always in 4/3.
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jamietonerCommented:
well since it is a new system try calling toshiba and see if they may have a driver they can send to get it to work because the hardware does support "Dynamic Display Modes for flat-panel, wide-screen and Digital TV support". The # is 1-800-457-7777.
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EZTomsAuthor Commented:
I'll try to contact them indeed. This is a high end laptop, it's not acceptable that it can't drive a widescreen monitor.
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EZTomsAuthor Commented:
Haven't found a solution yet, I think I must wait for Toshiba to release an updated driver. I have an older tablet with a 915 chipset that can drive the same monitor without trouble.
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poeticlykistCommented:
unfortunately, the resolutions are hard coded into the notebook's drivers.
Theoretically many many resolutions are suported by the chip (for example, mine has the standard 4:3 resolutions as well as the special 1280x768). The widescreen resolutions aren't necessarily unlocked simply because they're 'unnecessary' to most people.

What I can do, however, is accept a (non-native) fuzzy image at my notebook's custom resolution on the external monitor. I guess that's all I can offer for now.
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rindiCommented:
any news?
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