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    High battery drain in Optimus mode (W520)

    Discussion in 'Lenovo' started by 3xP053r_, Nov 15, 2011.

  1. 3xP053r_

    3xP053r_ Newbie

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    EDIT: I also posted on Lenovo forums, where it got sorted out: http://forums.lenovo.com/t5/W-Serie...-drain-in-Optimus-mode-W520/m-p/592483#M22001

    Long story short:

    - Open Hardware Monitor showing CPU activity in tray was causing Optimus to use discrete graphics.

    - While the tooltip and balloon of nVidia tray icon clearly say that there is no activity on discrete GPU, it can still be active for some hidden program and the icon indicates that with its color (colored = on, gray = off); lesson learned: if it is colored, do not look for driver/settings issue, but rather try turning off applications, even when the icon says no applications are using it.
     
    3xP053r_, Nov 15, 2011
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  2. Colonel O'Neill

    Colonel O'Neill Notebook Deity

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    Yeah I noticed that too when I tried to hook OHM into Rainmeter.
    You should use the other Optimus tool ("NVidia Optimus GPU State Tool") that tells you "Off/Idle/On" + the process name. OHM will put the GPU into "Idle", which the other tool will report as "Off".
     
    Colonel O'Neill, Nov 15, 2011
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