CAC-1085 and Nvidia drivers 457.09 missing resolutions.

9 on 31-10-2020

Nvidia drivers 457.09 are not fully compatible with the Club3d CAC-1085 Display port to HDMI 2.1 adaptor and the RTX 2080 Ti. This driver removes [email protected] and [email protected] resolutions. The resolutions are restored when rolling back to driver 456.98. Windows 10 Pro 64 bit.

 
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0 on 31-10-2020

i see the same issue too and reverting to 456.98 resolves it. others have reported issues with certain refresh rates on different displays as high as 240hz using DSC (which the CAC-1085 also uses for certain modes). there was supposedly a fix for DSC and black screen issues in this driver. That could be related to this issue and they either broke their own driver, or they prohibited certain DSC-capable devices from negotiating a connection using the latest driver.

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0 on 31-10-2020

I was thinking along similar lines with the DSC changes. Hopefully Club3D can work out a fix internally or with Nvidia to correct this issue. 

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0 on 01-11-2020

even i am having trouble the new driver. i own a rtx 2080ti. 

now i cant play games on RGB 10bit 🙁 
please let me know if any workarounds you find.

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0 on 01-11-2020

Good luck getting a response from this graveyeard.

Club 3d don’t even make firmware updates available unless you email them…

 

It’s outright ludicrous.

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0 on 02-11-2020

once i got a email long back with a no signal fix. 
but now i have moved to 3080

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0 on 06-11-2020

I am having the same issue with the CAC-1085. I am running a 2080 Ti and 457.09 is stuck on HDMI 2.0b resolutions while 456.98 allows RGB [email protected]

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1 on 09-11-2020

Latest Nvidia drivers 457.30 also do not work properly. I’ve gone back again to 456.98 which are the last to show all the needed resolutions. 

on 13-11-2020

On the Linux side, I just updated from 455.28 to 455.38, and the same thing happened. No matter what I do, setting custom modelines or whatnot, all I get is max [email protected]

(agh… didn’t mean to reply to this message directly, sorry… misleading reply button 🙂 )

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0 3 mins ago

Club 3D CAC-1085 with…

  • nVidia Game Ready Driver 457.30 – Nov 09, 2020 – LIMITED.
  • nVidia Game Ready Driver 457.09 – Oct 29, 2020 – LIMITED.
  • nVidia Game Ready Driver 456.71 – Oct 09, 2020 – WORKING.

The option “Perform a clean installation” was selected each time.

In the nVidia Game Ready Driver versions after 456.71, the resolutions and color depths and frame rates are limited. Rolling back to 456.71 reverted the limitations. Further description of the limitations:
The resolution 4k (3840×2160) is limited to 60 Hz, and can only be increased to 120 Hz by creating a custom resolution profile. In that case, the option to go above 8 bit-color with RGB or YCbCr444 rather than being able to select 12-bit color, is also lost.

I expect working with Club 3D support and nVidia support on this issue will be the best way to resolve this.

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