Plex for Windows: i5-1035G7 stutter 4K H.265

[orico_orion]

Server Version#: 1.23.2.4625
Plex for Windows Player Version#: 1.31.1.2262-74fdc6b7

On my LG Gram 17 2020 with the Iris Plus Graphics, the Plex for Windows player (NOT Plex Media Player) keeps being unable to stream large 4K HEVC remux files (>50GB, some 90GB) without stuttering or buffering. On my current test with a 90GB stream the video plays (it wouldn’t even open a few days ago) but there is a constant stuttering as if it is skipping every other frame or something like that. This seems to be a problem with the player because on Plex Media Player, the TV version that has the option to enable OpenGL rendering, with that enabled I have smooth playback of those same 4K remuxes. I don’t believe it is a network problem as it plays fine in PMP, and my phone can play the large files without a problem too. ‘Use Hardware Decoding’ is enabled, and Tautulli shows Direct Play for container video audio subtitle at Original quality 55.0Mbps. On a whim I tested with hardware decoding off and it maxes out the CPU and stuttering is worse. This is a fairly recent laptop so I didn’t expect there to be these kinds of video playback issues, wondering if anyone in a similar situation has found a fix?

[orico_orion]

Does anyone have any insight?

[orico_orion]

Anyone?

[pl_5309]

That is still a new chipset, keep updating the BIOS and the Intel video drivers, there are frequent updates.

[shadowvlican_gmail_com]

That CPU can hardware decode 4K H265. The issue is whether you can network limited or typical Plex for Windows performance problems. Narrow down your issues by troubleshooting. Try playing the file locally (copy to laptop) with MPC/LAV-filters or MPV (with hardware decode enabled). Then try the same thing, this time over your local network. If MPC/MPV works, then Plex for Windows is to blame.