2 Replies Latest reply on Sep 21, 2016 5:28 PM by Intel Corporation

    Mouse lag with iGPU

    obi1

      Description

      I have a two monitor setup, using an RX 480 for my main monitor and the iGPU for my second (the reson is a whole other issue with AMD drivers). After I installed the intel graphics drivers my mouse started laging. First I installed the Beta 15.40.26.4474 drivers and the mouse lagged continuesly to the extent where I could barely do anything with it (had to use my keyboard to reboot). After that I completely removed AMD and Intel drivers and reinstalled, this time I installed the stable 15.40.25.4463 version of the drivers and the mouse lag only happend very sporedicaly (usualy when I try to move it just a little) and is hardly noticable.

       

      EDIT: it can get pretty bad on the stable drivers aswell

       

      Always (100%):

      Often (51-99%): X (beta drivers)

      Sporadic (20-50%):

      Very Sporadic (<20%): X (stable drivers)

      Hardware (HW)

      - XFX 480 GTR 8GB

      - Main monitor: Dell U2715H @ 2560x1440 DisplayPort

      - Second Monitor: LG IPS235 @ 1920x1080 HDMI

      - Asus Z170 Pro Gaming

      - Intel Core i7 6700K

      - EVGA SuperNova 650GS Modular (80+ gold) (running in ECO mode)

      - 32GB DDR4 ram

       

      Software (SW)

      OS: Windows 10 Pro 64bit Anniversary Update (10.0.14393)

       

      VBIOS (video BIOS) version. 1036.0

       

      Graphics Driver version;

      - Crimson Edition 16.8.2 Hotfix drivers

      - Intel 15.40.25.4463, worse performance with Beta 15.40.26.4474 (might just be because of the clean driver install with the DDU tool)

       

      Mouse cursor lags everywhere.

       

      Configurations

      Extended display.

       

      Display resolution & refresh rate setting of each display:

      - Main display on RX 480 has resolution 2560x1440 @ 60Hz

      - Second display on intel has resolution 1920x1080 @ 60p Hz

       

      Desktop computer with cable pluged in.

       

      How to repro

      Please provide steps to replicate the issue.  These steps are very crucial to finding the root cause and fix.
      A screenshot to illustrate the issue is a huge plus. A video of the failure is even better! Attach to the post or provide the YouTube link.

      1. Insert dGPU into computer
      2. Enable dGPU only in BIOS
      3. Install dGPU drivers in Windows
      4. enable iGPU in BIOS
      5. install iGPU drivers
      6. reboot to Windows and the mouse started laging

      ...