Need to disable Optimus

[tribbleuser]

Hi, I hope someone knows a solution to this otherwise my shiny new laptop will have to go back!

I have just bought an HP Envy 17-j141na (running Win8.1).  My problem is with the Optimus system which switches between the Integrated video and the discrete Nvidia video.  I use a piece of software (OtsAV) which is uses the extended desktop to display karaoke words or video.  It is ONLY compatible with AMD or NVidia graphics cards.  When I bought this laptop, I did so based on the spec which said it has Nvidia graphics.  I was not aware of the dynamic Optimus system which switches between the two to preserve battery life.  I have no need to preserve battery life as I always run on ac power, and I have no need of Intel graphics, I want to completely disable the Integrated graphics and permanently use the Nvidia card, but apparently this is not possible.  If I uninstall the Intel drivers the external display disappears completely.  Apparently the Nvidia GPU still uses the Intel to transfer the signal.  This is useless to me as my software thinks it's an Intel adaptor and reports incompatible hardware.  My previous laptop also had dual graphics, but it gave me the option to use either to output the external display.  I have tried setting the Nvidia control panel to prioritise the Nvidia GPU but it still uses the Intel.  (Not sure why, but I suspect it does not recognize the exe of Ots as software)

If I am trying to do something which is impossible with this model, please tell me now, I'll have to return it as it is basically an expensive paperweight at the moment.

NB. Please don't bother to post if you don't know the answer, I don't need to hear that I'm MAD for wanting to do this thing that no one else has ever wanted.  Just assume that I'm not a moron and I DO require this laptop to do what I want it to do.

Thanks

[banhien]

Hi,

Please check the following discussions:

    https://forums.geforce.com/default/topic/532415/how-can-i-disable-optimus-/

    and

    https://forums.geforce.com/default/topic/735257/please-for-the-name-of-god-disable-optimus-when-lapt...

Regards.

[tribbleuser]

Thanks, but neither of those threads actually contain a solution, it's just more people with the exact same problem.

It does seem that some of the older Optimus laptops allow you to set this in BIOS, but mine doesn't.  It does seem that there is no way to force my new very expensive laptop to work the way I want it to, not the way HP and Nvidia seem to think it should.  The manufacturers seem to think that the only way you would want to use it is the way they think is best.  Well that's no good to me, and if I am unable to return this machine I have spent a lot of money on something completely useless for my purposes.

Sorry, rant over!

[GioL]

Hello,

I have the same problem, want to disable Optimus. Any driver update to allow this? Ubuntu is already equipped with this solution, there should exists something similar for Windows.

thanks,

Best regards,

Giorgio