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Drivers & Software

mclingo
Challenger

1080p FULL RGB bug with new driver 20.3.1

I have a 4k screen which I run at 1080p for reasons i wont bore people with but with this drives it wont move from 333 ybcr 12 bit, the other options are there but when i change them it simply slips back, I want to set either full RGB 8 or 10 bit 444.

 

if I run my screen in native resolution everything is fine but I need to run my screen in 1080p

WIndows 1909

Radeon RX5700

Ryzen 3600

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4 Replies
mclingo
Challenger

Re: 1080p FULL RGB bug with new driver 20.3.1

removed with DDU, reinstalled 20.3.1, now control panel wont start citing mismatch of driver, another piece of crap driver package from AMD.

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mclingo
Challenger

Re: 1080p FULL RGB bug with new driver 20.3.1

this issue seems to only manifest itself on some TVs and only at 1080p, if I switch to any other resolution I can change this settings, no idea what AMD have done here.

please can the AMD devs be asked to have a look at what has changed between driver versions to see if there is something in particular 1080p is doing where its getting totally locked to 4:4:4 YBCR 12 bit.

My TV is LG EFO950v 2015 OLED

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mclingo
Challenger

Re: 1080p FULL RGB bug with new driver 20.3.1

i've since found this only affects 1080p @60/50/23/24/29 hz, its fine at 30hz, when on earth is going on with this driver, at least i have a workaround though, running my desktop at 30hz isnt idea but it works.

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mickeekung
Challenger

Re: 1080p FULL RGB bug with new driver 20.3.1

Did you face any black screen / freezing / hanging with amd 5700?

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