Playback of 8K 60fps video at only 30fps on MPC-HC with K-Lite_Codec_Pack_1875_Full

[lixinlkmn2004]

I'm using the k-lite package, set to lav video decoder + mpc video renderer.

I have fed back on this issue in the codec guide forum but the problem is not solved.

https://codecs.forumotion.net/t4733-playback-of-8k-60fps-video-at-only-30fps-on-mpc-hc-with-k-lite_codec_pack_1875_full

The laptop I'm using is a ThinkPad P16 Gen2, which comes with an I9-13950HX with built-in UHD graphics 和 an RTX 4000 Ada

When I try to play any 8K 60FPS video format (such as HEVC, VP9, AV1) using Intel integrated graphics, the OSD shows an actual frame rate of around 30FPS with dropped frames. The Video Decode utilization hovers at about 50%. However, when playing the same video in a browser, the frame rate is normal, 和 Video Decode utilization fluctuates between 50% 和 100%.

When I set MPC-HC to high performance in Windows settings (using the RTX 4000 Ada Laptop for decoding), the frame rate is normal. However, if I let Windows decide or select the power-saving option, the issue persists.

https://imgur.com/a/mqORLyi ⬅ Here are some screenshots

I hope to be able to play 8K 60FPS videos smoothly using the integrated graphics.

Thank you to all the developers 和 maintenance teams for your hard work 和 dedication.

My Software Environment:
System: Windows 11 23H2 22631.4602
Graphics Card: I9-13950HX Intel UHD Graphics & NVIDIA RTX 4000Ada Laptop

intel graphics driver version：32.0.101.6078

[clsid2]

This is not a problem with LAV Filters.

[lixinlkmn2004]

This is not a problem with LAV Filters.

Thank you for your reply, can you tell me where the problem is probably coming from, I tried reinstalling k-lite and cleaning the related registry and reinstalling the intel graphics driver, but the problem is not solved.

[clsid2]

It is a driver bug, which means you can not fix it yourself.

[lixinlkmn2004]

It is a driver bug, which means you can not fix it yourself.

Thankyou for you reply.