Answers (N/A if not applicable)
Provide a detailed description of the issue
Graphics performance is low with the latest driver at 1440p resolution when using "Second Display Only" mode. Dragging windows around the screen, the window maximize and minimize animations, as well as animations/activity in browsers such as typing a URL or scrolling on web-pages is very 'juddery'.
Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")
Always (100%): X
Very Sporadic (<20%):
Brand and Model of the system.
CLEVO N150RD [Scan.co.uk 3XS LG15 Performance GTX] https://www.scan.co.uk/3xs/configurator/geforce-960m-gaming-laptop-intel-skylake-15in
Hybrid or switchable graphics system?
Yes. Nvidia GTX960M
Make and model of any Displays that are used to see the issue (see note2 below).
LFP = Not sure. Issue only occurs in 2nd Display only mode.
EFP = Dell UltraSharp U2715H 27"
How much memory [RAM] in the system (see note2 below).
Provide any other hardware needed to replicate the issue.
External Monitor connected via Display Port (DP)
Hardware Stepping (see note1 below).
Operating System version (see note2 below).
Windows 10 Pro 64-bit (10.0, Build 14393) (14393.rs1_release_inmarket.160819-1924)
VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.
Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).
Intel HD: 18.104.22.16863
SW or Apps version used to replicate the issue.
Single display, clone, or extended (see note2 below).
Single Display [Second Display Only] Laptop Display = Lid Closed and Off.
Display resolution & refresh rate setting of each display (see note2 below).
2560x1440 [59 Hertz]
AC or DC mode, i.e. is power cable plugged in or not?
Power Cable Plugged In
How to repro
Please provide steps to replicate the issue. These steps are very crucial to finding the root cause and fix.
1. Open an explorer window
2. Drag the window around the screen at varying speeds for 5 seconds
3. Observe the issue