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HellsDelight Honor Student
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HP ZBook 15 G2 Graphic Buffering issues in Games (Games freeze for many minutes and continue)

HP ZBook 15 G2
Microsoft Windows 10 (64-bit)

Hello, I try to play old and new Games on the HP ZBook 15 G2 but each time between 2 - 15 minutes the Game freezes while the sound is still playing for at least 5 minutes until I can play further. It seems like the graphics card is buffering something like on a Video stream until I can continue playing. The Games work perfectly before and after this kind of game freeze.

 

Is this a known issue?

What could be the issue?

 

Usually Games should either lag, being slower with less fps, have screen tearing, etc. but somehow buffer a Game for minutes until it works completely fine again is new to me.

 

The same Games work on a much less performant HP 840 G1 Notebook but of course I need to turn down the graphics options depending on the Game.

 

What is also odd it seems in general there are issues with using ALT+TAB to get to Windows while in a Game which works fine on my other PC.

 

Hardware: Intel Core i7-4810MQ CPU, 16GB RAM, Intel HD Graphics 4600 and NVIDIA Quadro K2100M

 

What I tried:

I installed the latest Windows 10 64-Bit Version with all updates, used the HP Support Assistant Tool to install every Update it found.

 

After the issue still there I later tried to install the latest Intel Graphics Driver from the Intel website (20.19.15.4483 from July 2016), the latest Nvidia Driver from the Nvidia website from the stable branch 21.21.13.7563 from October 21st 2016.

 

Tried to disable the internal Intel Graphics Card but e.g. Battlefield 1 is then complaining that they can't use it.

 

I set the Nvidia Graphics Card Option to "Preferred Graphics Processor: High-performance NVIDIA processor" and also set the Nvidia Power Option to "Prefer Maximum Performance" and the Windows Power Options to Performance.

 

Also when reducing the graphics of a Game to the lowest the issue still happens.

 

The issue is independent of if it's a new or an old Game and if I set the graphics to very low or High or Ultra. I tried Skyrim Special Edition (Low and Ultra Settings), Shadow Warrior, Battlefield 1 (DX11 and DX12 Setting), Fable Anniversary, Enslaved Oddyssey to the West, Mafia II, Bioshock Remastered, Gears of War 4, etc.

 

The Nvidia Control Panel installed the latest Game and Program Profile from October 27.

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HellsDelight Honor Student
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HP ZBook 15 G2 Graphic Buffering issues in Games (Games freeze for many minutes and continue)

Seems the issue is now gone after updating the BIOS from 1.08 to 1.15. Still not able to use ALT+TAB in-game though to get to the Desktop but that's a lesser issue.
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HellsDelight Honor Student
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HP ZBook 15 G2 Graphic Buffering issues in Games (Games freeze for many minutes and continue)

It seems it has improved at first after the BIOS Update but the issue is still there. 

The improvment is that it happens a little less frequently on some Games (but other Games still have it almost every 5 - 10 minutes). Also the issue now sometimes shows as a black flicker which could suggest it tries to switch between the Intel internal graphics card and the Nvidia card maybe? Eventhough I set to use Nvidia for maximum performance in the Nvidia Control Panel.

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