DisplayLink Forum - View Single Post - Overwatch not accessing dGPU when Displaylink Hub plugged in

cpcfreak · 08-01-2019, 03:46 AM

An FYI for people investigating this problem.

I have an older laptop Dell Inspiron 15 7000 with Intel HD Graphics 4400 and Nvidia GeForce GT 750M switchable graphics, and a Dell D3000 DisplayLink dock.

With the latest Windows 10 1903 update the switchable graphics works fine only when no dock is attached.

This seems to contradict the suggestion that Windows 10 cannot be switch away from the POST GPU. FYI, I confirmed the switchable graphics were actually enabled by running Redway3D examples which only run accelerated from the Nvidia GPU.

I also found that certain OpenGL applications would only run from one or the other GPU so it was pretty easy to determine which GPU was enabled.

However, as soon as I plug in the D3000 Dock applications will no longer launch automatically or manually using the discrete graphics card. With the dock attached only Intel integrated graphics are functioning.

08-01-2019, 03:46 AM	#9
cpcfreak Junior Member Join Date: Aug 2019 Posts: 2	An FYI for people investigating this problem. I have an older laptop Dell Inspiron 15 7000 with Intel HD Graphics 4400 and Nvidia GeForce GT 750M switchable graphics, and a Dell D3000 DisplayLink dock. With the latest Windows 10 1903 update the switchable graphics works fine only when no dock is attached. This seems to contradict the suggestion that Windows 10 cannot be switch away from the POST GPU. FYI, I confirmed the switchable graphics were actually enabled by running Redway3D examples which only run accelerated from the Nvidia GPU. I also found that certain OpenGL applications would only run from one or the other GPU so it was pretty easy to determine which GPU was enabled. However, as soon as I plug in the D3000 Dock applications will no longer launch automatically or manually using the discrete graphics card. With the dock attached only Intel integrated graphics are functioning.