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  1. Qt
  2. QTBUG-66600

Constant CPU Usage when idle

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P2: Important
    • Resolution: Unresolved
    • Affects Version/s: 5.10.1
    • Fix Version/s: None
    • Labels:
      None
    • Environment:

      Description

      Hello all,

      Since Creator 4.4.1 I observe a constant CPU usage without opening any project, just launching it.

       

      On my 8 CPU computer it consumes 6% CPU (global) / 48% of one core just doing nothing ! 

      On a laptop it's a big issue because it's draining the battery faster than usual.

      As described in the "environnement" I'm using a laptop with an external screen but the issue is still there when the external screen is unplugged (ie. the USB3 dock is unplugged).

       

      Comments below contains diag information.

      I just discover the issue disapear if I force Nvidia board to be used for this program. I guess it's still an issue for battery drain because this graphics processor may drain more than the IGP.

       

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            Assignee:
            lagocs Laszlo Agocs
            Reporter:
            walter.k. walter koenig
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              Dates

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              Updated:

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