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December 24th 05, 09:34 PM
My driver (5.7.6.4) supposedly supports 1920 x 1200. I also tried
5.7.7.9 which is supposed to support the resolution as well.

However, when I attempt to choose the resolution in Display
Properties->Settings, it simply doesn't show up. 1920 x 1440 and 2048 x
1536 are available, but 1920 x 1200 is just skipped.

I'm attempting to extend my laptop desktop via the VGA output to an LCD
monitor with a native resolution of 1920 x 1200.

Why isn't this supported resolution showing up? How can I force it to
appear?

Thanks

Ted F
December 24th 05, 11:29 PM
Download and install the latest video drivers. Your product supports this
driver.

nVIDIA
Windows XP/2000 32-bit
Version: 81.98

http://www.nvidia.com/object/winxp_2k_81.98.html


> wrote in message
oups.com...
> My driver (5.7.6.4) supposedly supports 1920 x 1200. I also tried
> 5.7.7.9 which is supposed to support the resolution as well.
>
> However, when I attempt to choose the resolution in Display
> Properties->Settings, it simply doesn't show up. 1920 x 1440 and 2048 x
> 1536 are available, but 1920 x 1200 is just skipped.
>
> I'm attempting to extend my laptop desktop via the VGA output to an LCD
> monitor with a native resolution of 1920 x 1200.
>
> Why isn't this supported resolution showing up? How can I force it to
> appear?
>
> Thanks
>

December 25th 05, 12:36 AM
Thank you. However, I tried it and it actually doesn't support my
hardware.

By the way, the two drivers I previously mentioned are *supposed* to
support 1920 x 1200.

Modes.txt lists it:

1920 x 1200 32 60 75 85 100 (entry in the "; Standard Modes"
section)

But in Display Properties, it goes from 1600 X 1200 straight to 1920 x
1440. It skips the resolution I need.

Any other suggestions would be appreciated.

Benjamin Gawert
December 25th 05, 10:47 AM
Ted F schrieb:

> Download and install the latest video drivers. Your product supports this
> driver.
>
> nVIDIA
> Windows XP/2000 32-bit
> Version: 81.98
>
> http://www.nvidia.com/object/winxp_2k_81.98.html

If You'd read it then probably you would have noticed that the Forceware
drivers don't support mobile GPUs.

Benjamin

December 25th 05, 03:26 PM
I found these entries in NVTS.INF within the [nv_ClearRegistrySwitches]
section:

HKR,, Disable19x12x32at60
HKR,, Disable16x12x32ge70
HKR,, Disable19x10x32ge70

Could one of them be impeding the selection of the resolution I
require?

Within the same file, I also found this entry in the
[nv_SoftwareDeviceSettings] section:

HKR,, NV_Modes, %REG_MULTI_SZ%, "{*}S 640x400=39;320x200 320x240
400x300 512x384=9;SHV 1920x1440x8,16=19;640x480 720x480 720x576 800x600
1024x768 1280x800 1280x1024 1400x1050 1440x900 1600x1200 1680x1050
1920x1200=39;1920x1440x32 2048x1536=9;"

Again, the resolution 1920x1200 does show up in the list, suggesting
that it is in fact supported, even though it isn't showing up. Any
ideas?

Thanks

Benjamin Gawert
December 25th 05, 04:04 PM
schrieb:

> Again, the resolution 1920x1200 does show up in the list, suggesting
> that it is in fact supported, even though it isn't showing up. Any
> ideas?

I'm no specialist for these inf files. But even on desktop cards with
the regular Forceware drivers some Widescreen resolutions (like
1680x1050 and IIRC also 1900x1200) only show up in the driver if there
is a display connected that can use these resolutions. The driver is
polling the display via DDC if it supports these widescreen resolutions,
and only makes them available if the display supports them.

But there also is the probability that your notebook GPU simply can't do
more than 1600x1200 on its external output. And even if it does, don't
expect miracles. Almost all notebooks show a blurry picture over
1024x768 on the analog monitor port, some even at 800x600 and below...

Benjamin

December 25th 05, 04:46 PM
Benjamin,

Thanks for your input. I actually already considered those two
possibilities and don't believe either is the case.

> But there also is the probability that your notebook GPU simply can't do more than
> 1600x1200 on its external output.

First, 1920x1440 and 2048x1536 both are available as selectable
resolutions in Display Properties. If the GPU can do those resolutions,
it should definitely be able to do 1920x1200 (a lower resolution).

> Widescreen resolutions (like 1680x1050 and IIRC also 1900x1200) only show up in
> the driver if there is a display connected that can use these resolutions.

My LCD, (Dell UltraSharp 2405FPW) has a native resolution of 1920x1200;
the display does support the res.

Also, keep in mind that the two larger resolutions (1920x1440 and
2048x1536) are selectable when my display is connected even though the
LCD *doesn't* support those two larger resolutions.

Anyone have any other suggestions?

Thanks

Benjamin Gawert
December 25th 05, 08:41 PM
schrieb:

> Thanks for your input. I actually already considered those two
> possibilities and don't believe either is the case.
>
>>But there also is the probability that your notebook GPU simply can't do more than
>>1600x1200 on its external output.
>
>
> First, 1920x1440 and 2048x1536 both are available as selectable
> resolutions in Display Properties. If the GPU can do those resolutions,
> it should definitely be able to do 1920x1200 (a lower resolution).

Yes, of course. If higher resolutions are offered, 1920x1200 should be
possible...

>>Widescreen resolutions (like 1680x1050 and IIRC also 1900x1200) only show up in
>>the driver if there is a display connected that can use these resolutions.
>
>
> My LCD, (Dell UltraSharp 2405FPW) has a native resolution of 1920x1200;
> the display does support the res.

You didn't say what display you had so I had to make a guess...

> Also, keep in mind that the two larger resolutions (1920x1440 and
> 2048x1536) are selectable when my display is connected even though the
> LCD *doesn't* support those two larger resolutions.

Well, this strongly looks like your notebook doesn't read the DDC
information that the 2405FPW offers. If it would read them correctly you
wouldn't be able to go over the max. possible resolution of the
connected display. So it seems that your notebook (or better: the
driver) doesn't read the DDC informations from the VGA connector.

What monitor have you defined in Windows for the external output? If
it's PnP monitor, it should use the monitors DDC infos. If not, change
that to PnP monitor and try again. If the computer still allows you to
go over the 1920x1200 then install the 2405FPW inf file. With that file
the driver doesn't have to rely on the DDC informations to see what the
monitor can do and what not...

Benjamin

December 26th 05, 03:05 PM
Hi Benjamin,

> If it's PnP monitor, it should use the monitors DDC infos. If not, change that to PnP
> monitor and try again. If the computer still allows you to go over the 1920x1200 then
> install the 2405FPW inf file.

I had already tried doing both. Neither led to the native resolution
showing up in Display Properties.

I have found a solution though. But I am quite confused as to why it
works.

As I previously mentioned, the installed driver and the hardware are
supposed to support 1920x1200, the .inf file and modes.txt says so.

The installed Nvidia software allows the creation of custom
resolutions. So obvioulsy, the very first thing I tried was to create
the resolution my LCD needed (Dell UltraSharp 2405FPW). That *didn't*
work. I would simply get a message "The custom resolution cannot be
added."

After failing to find another solution, I went back and tried to create
another custom resolution, 1920x1201 32 bit 60 Hertz

And that worked! My LCD recognizes 1920x1201 *as* 1920x1200. So I'm
able to use my LCD with laptop and my immediate problem is solved.

However I am quite confused... First, why doesn't the supported
resolution show up in Display Properties->Settings (even though larger
resolutions like 1920x1440 and 2048x1536 do show up ).

Second, why would I be able to create a custom resolution of 1920x1201
but not 1920x1200?

If anyone can shed some light on this, I'd appreciate an explanation.