I've posted something similar recently, but I just wanted to consolidate into one post.
Basically, triple display only works when the first monitor is connected to the laptop's built-in hdmi port first, then the 2nd monitor is connected to the usb-c-hdmi2.0 adapter.
Any other order, any other configuration involving displayport, will not work.
There's only one way you can get laptop screen + 4k@60hz + 4k@30hz triple display.
Here are my video demos---------
Dual display works in any configuration.
I bought 3 different adapters to try.
I used a usb-c hdmi adapter made by Kanex which supports 1080p@60hz and 4k@30hz, and set all screens to 1080p.
If the Kanex usb-c adapter is plugged in first, followed by the built-in hdmi port, triple display will not run.
If you reverse the order and plug in the built-in hdmi port first, followed by the Kanex usb-c adapter, then triple display will work.
The third usb-c hdmi adapter is made by Cellet, and it supports 4k@30hz. With this adapter, no matter what order you plug in the external monitors, the screens will blink every few seconds. In this case, Intel graphics control panel detects all 3 displays, but can't stabilize the configuration and keep it from blinking.
Answers (N/A if not applicable)
Provide a detailed description of the issue
Asus G501vw notebook
i7 6700hq, HD530, optimus gtx960m, thunderbolt 3.
ju6500 samsung 4k TV connected to Dell usb-c hdmi 2.0 adapter
AOC U2879G6 4k monitor connected to hdmi 1.4 port
Latest beta intel graphics driver.
Total 3 screens with extended desktop.
Triple display only works when hdmi 1.4 connected first, followed by usb-c-hdmi 2.0.
Any other plug in sequence, even with displayport, results in triple display failure.
Does it fail every single time, or only sometimes?
Brand and Model of the system.
Hybrid or switchable graphics system?
Make and model of any Displays that are used to see the issue (see note2 below).
LFP= SAMSUNG 156HL01-104
EFP1= AOC U2879G6
EFP2= samsung 4k tv unknown panel.
How much memory [RAM] in the system (see note2 below).
Provide any other hardware needed to replicate the issue.
Dell usb-c to hdmi 2.0 adapter. Model #47kd7
Manufacturer Part# : 0M5WX
Dell Part# : 470-ABMZ
18gbps hdmi cables
Hardware Stepping (see note1 below).
Operating System version (see note2 below).
win10 home x64
VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.
don't see this info anywhere for intel 530.
nvidia Video BIOS Version: 82.07.94.00.0a
Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).
SW or Apps version used to replicate the issue.
just windows 10
Single display, clone, or extended (see note2 below).
extended across 3 screens or cloned. same result
Display resolution & refresh rate setting of each display (see note2 below).
laptop 1080p 60hz
aoc u2879g6 3840x2160 30hz
samsung tv 3840x2160 60hz
AC or DC mode, i.e. is power cable plugged in or not?
power cable plugged in all devices
How to repro
Please provide steps to replicate the issue. Thesesteps are very crucial to finding the root cause and fix.