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1 Posts

07-22-2019

CA

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X1E - projecting to external monitor causes frames to skip

2019-07-22, 0:12 AM

I have a curious issue when I select only the external monitor for display - connected through HDMI, Acer 1440P ET322QU. I get significant frame drop even though the monitor is set to 60 Hz. Frame rate inside games drops to 30-35 FPS. When I select dual display (laptop and External Monitor) or Laptop Only, the frame rate is fine. The issue is only experienced when I have output to external monitor only.

 

I read ona  forum that the BIOS needs to be updated however v 1.23 cannot be installed by Lenovo Vantage and I get a file not found error when trying to download the latest BIOS v 1.23 from July 14, 2019. So a BIOS update isn't possible.

 

Considering there is no performance drop when both laptop and external monitor are selected, it appears to me this is a software/BIOS/driver issue. Anyone experience this problem, any fixes? (Strangely, I didn't have any issues previously, the issue seems to have begun in the last month.)

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34 Posts

10-29-2017

US

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Re: X1E - projecting to external monitor causes frames to skip

2019-07-22, 13:58 PM
This sounds like the same problem as this:

https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-extreme-screen-lag-on-quot-second-screen-only-quot/m-p/4480795#M102426
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34 Posts

10-29-2017

US

151 Signins

960 Page Views

  • Posts: 34
  • Registered: ‎10-29-2017
  • Location: US
  • Views: 960
  • Message 3 of 3

Re: X1E - projecting to external monitor causes frames to skip

2019-07-22, 16:28 PM
Check out my work-around until this is fixed in the thread linked above!
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