Request: Solution to hdmi external display lag on Optimus laptops with Intel UHD 630/GTX 1060.

[pmehr4]

 I have a MSI GP73 8RE leopard laptop with Intel UHD 630/GTX1060 optimus switchable graphics. HW specifics in end of post. The problem I encounter has been widely known around on forums for over a year with no solution as far as i can find googling. The issue is NOT MSI specific but applies to other optimus equipped laptops as well. MSI is obviously aware of the issue as it is listed in FAQ with a provided workaround with an old intel driver, which no longer works as of june 2020. I am suprised neither intel or Nvidia has acknowledged the issue and provided a solution to this problem which has been around since right after Intel Graphics Driver version 23.20.16.4939. 

Problem description: The problem is when using an external monitor/display in "second screen only" over HDMI. Occurs with all HDMI cables. When using second display only (external only, turning off laptop display or closing lid) system lag and stuttering occurs on the active external display. Menues lag, the spinning nvidia logo in the drivers lag, video, windows etc. Basicly the entire display has extreme stuttering and lag, and it occurs in everything I do. When both displays are active (cloned), the problem disappears. The HDMI port is directly connected to the Nvidia gtx 1060, which makes the workaround kind of odd since it hints that this is a issue with Intel UHD 630. All drivers are latest editions.

Current workaround: There is currently only one workaround, which is to enter device manager in Windows, and disable the Intel UHD 630, and then reactivate it. This consistently removes the issue until next boot or the display is disconnected and reconnected. MSI provided another workaround may 2019 which was to revert to Intel driver 23.20.16.4939 and disable automatic updating. This driver does no longer work. Link provided. I've been waiting patiently for a driver update which solves this issue but i'm getting tired and pissed after having to use the workaround now for ages. A solution must be found.

System hardware:

Intel Core i7-8750H

BGA1440

16 GB 2666mhz ram

Intel UHD Graphics 630 (Driver Version: 27.20.100.8280)

NVIDIA GeForce GTX 1060 6 gb (driver version: 446.14)

Windows 10 Home 64-bit (10.0, Build 18362) (18362.19h1_release.190318-1202)

MSI troubleshoot workaround (no longer works, driver gives black video on decoding): https://www.msi.com/faq/nb-3517.html

[Wats]

Issue still exist. I had to unplug the HDMI cable to my external display Just to right this (I became un bearable).

Acer
System Model Nitro AN515-58
Processor 12th Gen Intel(R) Core(TM) i7-12700H, 2700 Mhz, 14 Core(s), 20 Logical Processor(s)
Installed RAM 64.0 GB (63.7 GB usable)
Edition Windows 11 Pro
Version 21H2
Installed on ‎12/‎3/‎2022
OS build 22000.469
Experience Windows Feature Experience Pack 1000.22000.469.0
1TB 990 Pro
1TB Micro 3400
1TB 870 Evo

There's NO WAY I should be waiting seconds for menus to pop up or typed text to appear because I plugged in an HDMI cable. The
Issue started out of nowhere. I have had this laptop for over a year with the same setup. The Only change was having to roll back to 21H2 because Windows was so buggy after an update. (Yes I did update the drivers back to their latest stable releases as they were before the rollback.)