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kobe1449
Journeyman III
Journeyman III

RX 5700 and alpha blending with floating point render targets

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   I tried to start up a game (Rocket League) and it came up with the error message:

Screenshot (2).png

I'm not sure what the problem is, as I had no problems running the game

on my RX 480, which I had recently upgraded to the RX 5700.

I have tried:

- Reinstalling the game

- Verifying integrity of game files

- Re-downloading the latest drivers

- Resetting my PC altogether, a fresh install of windows

None of which has proved to be successful. If I can get some insight as to why

this is occurring I would be grateful.

(Edit:) I beleive I found the problem. I ran dxdiag and it seems that direct3d acceleration is not available.

I don't understand why but I'm positive that it may be the cause to my problems.

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1 Solution

Accepted Solutions
clinker
Journeyman III
Journeyman III

Re: RX 5700 and alpha blending with floating point render targets

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Hey, I found a fix. It worked for me. I had the same problem as you since I have a RX 5700 XT

I installed DDU (https://www.guru3d.com/files-details/display-driver-uninstaller-download.html) and uninstalled all the drivers according to their instructions. 

Rebooted the computer and I installed 19.7.1 and it worked.

I can play Rocket League again.

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7 Replies
saywhut
Challenger
Challenger

Re: RX 5700 and alpha blending with floating point render targets

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Does it only happen with Rocket League or other games?  It appears the issue is not limited to the 5700 XT but other cards as well like Nvidias.

Take a look here at the response from axotier and try that:
https://www.reddit.com/r/RocketLeague/comments/871fzz/error_your_video_card_does_not_support_alpha/

Let us know.

kobe1449
Journeyman III
Journeyman III

Re: RX 5700 and alpha blending with floating point render targets

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No, it also affected CS:GO, which is unable to open; upon pressing play it says running,

syncing, then returns to normal, not opening the game.

I have tried the solutions in the above post on reddit but nothing seemed to work for me.

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saywhut
Challenger
Challenger

Re: RX 5700 and alpha blending with floating point render targets

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List of system specs?

Make sure your BIOS is up-to-date.  Also, are you installing/running Windows 10 1903?

If not and are willing to try one more OS re-install, try these steps in this order:

  • Download Windows 10 from Microsoft
  • Re-install under UEFI mode (not legacy or BIOS)
  • Install Windows updates to the latest
  • Install Chipset driver from amd.com and reboot when prompted
  • Install video driver from amd.com then reboot
  • Try again

I've never seen this issue before.

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qwixt
Forerunner
Forerunner

Re: RX 5700 and alpha blending with floating point render targets

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Do you have some special display software loaded? Some have reported success by installing DuetDisplay. Another mentioned turning on GPU scaling in Radeon settings under display tab (which also sounds like something was interfering with the display to me).

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kobe1449
Journeyman III
Journeyman III

Re: RX 5700 and alpha blending with floating point render targets

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My System:

Graphics: AMD Radeon RX 5700

Driver: Adrenalin 2019 Edition 19.7.2

Windows 10 64-bit Version 1803 (10.0, Build 17134)

Proc: Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz

Memory: 16 GB

BIOS Version: 017.001.000.042

Motherboard: H270-HD3

There seems to be a problem with Direct3D,

as in dxdiag, it shows to be unavailable.

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ajlueke
Exemplar
Exemplar

Re: RX 5700 and alpha blending with floating point render targets

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Looks like this issue has cropped up in the past and was fixed by driver updates.  Unfortunately, with a brand new video card, you likely don't have a lot of options as far as supported drivers go.

https://community.amd.com/thread/215517

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clinker
Journeyman III
Journeyman III

Re: RX 5700 and alpha blending with floating point render targets

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Hey, I found a fix. It worked for me. I had the same problem as you since I have a RX 5700 XT

I installed DDU (https://www.guru3d.com/files-details/display-driver-uninstaller-download.html) and uninstalled all the drivers according to their instructions. 

Rebooted the computer and I installed 19.7.1 and it worked.

I can play Rocket League again.

View solution in original post