DXVA 2.0 Hardware Decode for Intel UHD Graphics 770

[raymondjpg]

Under all categories of DXVA 2.0 Hardware Decode at the advanced tab for Intel UHD Graphics 770 I see "Supported Yes", but No against all resolutions. This seems illogical to me. Am I missing some setting to better detect capabilities?

TIA

DXVA 2.0 Video Decode
Supported Yes

AV1 Profile 0 (main)
b8be4ccb-cf53-46ba-8d59-d6b8a6da5d2a
Supported Yes
480p No
720p No
1080p No
4K No

H.264 variable-length, no film grain
1b81be68-a0c7-11d3-b984-00c04f2e73c5
Supported Yes
480p No
720p No
1080p No
4K No

HEVC Main 10 profile
107af0e0-ef1a-4d19-aba8-67a163073d13
Supported Yes
480p No
720p No
1080p No
4K No

HEVC Main profile
5b11d51b-2f4c-4452-bcc3-09f2a1160cc0
Supported Yes
480p No
720p No
1080p No
4K No

MPEG-2 variable-length
ee27417f-5e28-4e65-beea-1d26b508adc9
Supported Yes
480p No
720p No
1080p No
4K No

VC-1 variable-length 2010
1b81bea4-a0c7-11d3-b984-00c04f2e73c5
Supported Yes
480p No
720p No
1080p No
4K No

VP9 profile 0
463707f8-a1d0-4585-876d-83aa6d60b89e
Supported Yes
480p No
720p No
1080p No
4K No

VP9 profile 2 10-bit
a4c749ef-6ecf-48aa-8448-50a7a1165ff7
Supported Yes
480p No
720p No
1080p No
4K No

 

[W1zzard]

Interesting.. let me try to reproduce

 

[raymondjpg]

Interesting.. let me try to reproduce

Thanks.

It looks like an issue with Alder Lake. I see the same profiles with Iris® Xe Graphics in a NUC12WSHV5, but not in a NUC11TNH (Tiger Canyon) also running Iris® Xe Graphics, where all profiles show Yes against all resolutions.

All cases with Windows 11 Pro 23H2 fully patched. Original post Intel UHD Graphics 770 in system running Intel Core i7 12700K.

 

[skittish]

I have absolutely the same problem as raymondjpg has. My CPU is Core i5 12500 (Alder Lake), with Intel UHD 770, Windows 11, 23H2, build 22631.3155 (current on 2024-02-25), Motherboard is ASUS Prime z690-P. I have tried to install a lot of drivers, from ASUS (all of them are pretty outdated, but WHQL verified) and just from Intel. The same result. All drivers were reinstalled with DDU (Display Driver Uninstaller).
It causes the real problem with mp4 decoding - video player sticks for first 1-4 seconds. This is especially noticeable in short videos. All videos (including downloaded reference examples) were tested on another PC with ancient intel CPU and graphics - no issues. And the same behavior (video sticks) on "Windows->Settings->Apps>Video playback" tab (built-in player), i.e. it's global problem. Neither specific driver, nor specific player causes this problem. I also tried to change monitor to another one using two new video cables (HDMI 2.0 and DP 1.4). Clean windows installation occurred useless. The problem did not disappear. Any suggestions would be appreciated

 

[raymondjpg]

Same issue with Raptor Lake processor i5-1350P running Iris® Xe Graphics.

 

[Gica]

The decoder works perfectly, I often encode with qsv and there are no problems.
I think the problem is with GPU-Z. As you can see, what is "NO" in GPU-Z is "Yes" in DXVA Checker.

 

[AleXXX666]

I have absolutely the same problem as raymondjpg has. My CPU is Core i5 12500 (Alder Lake), with Intel UHD 770, Windows 11, 23H2, build 22631.3155 (current on 2024-02-25), Motherboard is ASUS Prime z690-P. I have tried to install a lot of drivers, from ASUS (all of them are pretty outdated, but WHQL verified) and just from Intel. The same result. All drivers were reinstalled with DDU (Display Driver Uninstaller).
It causes the real problem with mp4 decoding - video player sticks for first 1-4 seconds. This is especially noticeable in short videos. All videos (including downloaded reference examples) were tested on another PC with ancient intel CPU and graphics - no issues. And the same behavior (video sticks) on "Windows->Settings->Apps>Video playback" tab (built-in player), i.e. it's global problem. Neither specific driver, nor specific player causes this problem. I also tried to change monitor to another one using two new video cables (HDMI 2.0 and DP 1.4). Clean windows installation occurred useless. The problem did not disappear. Any suggestions would be appreciated

maybe install some "Codec Pack" like back days ago & try to change player, I think VLC has so much embedded codecs that shouldn't have any issues with anything you throw in to it.

 

[skittish]

Thanks everyone for your response! Especially Gica for his screenshots. I was able to reproduce what was depicted on them. As for other players, yes, VLC really does not have any delay at the beginning of playback, just as Windows Media Player Legacy does not have it. So the problem is GPU-Z – it doesn't read the data correctly. The second problem is Windows Media Player. VLC has its own built-in codecs and does not use external ones.
Thank you for your valuable time and advice!

 

[W1zzard]

Thanks for reporting, this will be fixed in next release