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I bought a new Laptop - ASUS N750JK (see https://www.asus.com/de/Notebooks/N750JK/specifications/) with a Intel HD4600 and a Nvidia GTX 850M graphics card inside. I also bought a 4k Monitor (see http://www.philips.de/c-p/288P6LJEB_00/brilliance-4k-ultra-hd-lcd-monitor) which works on 4k@60hz. My problem is that I can't find a way to switch the graphic card to use from Intel to the Nvidia (the Intel only works with max 4k@30hz). My OS is Windows 8.1 Pro x64.
I already tried the following:
- BIOS settings: I can't deactivate the Intel card via BIOS
- BIOS update: Done, didn't change anything, no new settings available
- Deactivate Intel card via Windows 8 Device Manager: This causes a strange behaviour, and Nvidia Control also won't work after this step
- Restart: Didn't help
- Removed the newest Windows drivers, instead used the latest drivers from ASUS website. Also didn't work!
Can anyone help??? My GTX 850M supports 4k@60hz, doesn't it???
As Vojtech implied: "optimus" = your card/drivers is set up to use intel graphics for power saving. Also, the intel graphics are not a card, but rather on-die with the CPU. Instead of disabling intel HD graphics in the device manager, dig around in the nvidia Global 3d settings and try setting it to "maximum performance" and look for "preferred graphics processor", change from auto to "high-performance nvidia processor" – Yorik – 2015-11-11T20:11:20.090
Do you connect monitor to on nVidia 850m or HD4600 via miniDP? – None – 2016-03-20T09:42:54.380