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Old 17 September 2009, 22:55   #1
john4p
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Question Support for NVIDIA system control custom refresh rates?

When I use Powerstrip I can clock my screen refresh rate down to 49.959 Hz which is pretty smooth under WinUAE.

But using the NVIDIA system control I can clock the refresh rate to exactly 50.000 Hz.

Unfortunately WinUAE won't let me use this nvidia custom refresh rate (while Powerstrip's suboptimal custom refresh rate works).

I run WinUAE 2.0.0 beta 14 on Windows Vista Home Premium, GeForce 9600M GT.

Here is a screenshot of the nvidia system control:



The custom screen-mode is logged in the winuaebootlog.txt:

Code:
93: 1440x900, 8-bit (60)
94: 1440x900, 16-bit (60)
95: 1440x900, 32-bit (!50,60)
What does the '!' mean?

In WinUAE I choose 1440x900, 32bit color-depth and PAL (50*).
But it runs at 60 Hz...

Is it possible for you to support this '!'-screenmode, Toni?
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Old 18 September 2009, 08:23   #2
Toni Wilen
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Because I don't see any logs, I have to check my crystal ball: there will be log entries that says attempting to open 1440x900x50, driver replies "sorry, can't do" and winuae falls back to default refresh rate.

! means mode that is not compatible with your display (but most likely still works..)
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Old 18 September 2009, 09:28   #3
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Thanks for the quick reply.

I now deleted the "custom" 60Hz resolution, so that only the 50Hz-custom one remained and set that as my current Windows-display mode.

Then I started WinUAE with 1440x900 and the screen only flickered for about 1 second between black and darkblue and then WinUAE terminated.

So that looks like the driver indeed tells you "sorry, can't do".

I only have default Plug'n Play-drivers installed for my (laptop)-TFT (because those are the drivers that were preinstalled).
Using MonInfo from Entech (the Powerstrip-developers) I found out the name of this Samsung-display, but couldn't find any drivers for it anywhere on the web.

But why is the 50.000Hz-setting accepted by the standard Windows environment? Could I (easily) modify the LCD-driver by inserting a 50 in some ini- or inf-file or the Windows registry?
Or maybe try a driver of another 1440x900-Samsung-display?

Thanks in advance for your help!
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Old 18 September 2009, 10:45   #4
Toni Wilen
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winuaelog.txt please
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Old 18 September 2009, 11:19   #5
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Oh, of course - I'll post it at the late afternoon (currently at work...).
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Old 18 September 2009, 16:50   #6
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Dunno why (probably due to the reboot?) - but when I came back home and booted my laptop it just worked.

Yay, 50.000Hz:



The only downside is I can only clock the display's native 1440x900-resolution to 50Hz.
On my old laptop I could clock every display mode (640x512, 640x400, etc.) to 100Hz (well, 99.992Hz to be exact)...


P.S. I checked the "log"-checkbox, but I couldn't find a winuaelog.txt (only winuaebootlog.txt). Where is it stored?
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Old 18 September 2009, 20:42   #7
Toni Wilen
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Quote:
Originally Posted by john4p View Post
Dunno why (probably due to the reboot?) - but when I came back home and booted my laptop it just worked.
Reboot is supposed to be standard option when testing

Quote:
P.S. I checked the "log"-checkbox, but I couldn't find a winuaelog.txt (only winuaebootlog.txt). Where is it stored?
Check last few lines of winuaebootlog.txt for path
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