Released today: Intel Iris Xe/UHD Graphics Driver 31.0.101.3301, A03 26 Aug 2022 - Fixed the issue where the 4K video lags after system is resumed from Sleep mode. Hope I'm not premature in marking this as a solution!
Hi, This has been discussed at some length on Reddit, e.g.: [URL] [URL] 4K video (e.g. Netflix from Edge browser) and Windows animations stutter/lag after a few sleep/wake cycles. The iGPU is maxed out. The reports suggest this is because power management has prevented the iGPU clock from ramping up beyond 100 MHz. I've had two 9520s and seen it on both from new. Is there any firm resolution?
XPS 15 9520, stuttering 4K video and Windows animations after sleep/wake