Optimus igpu disable benefits?

Discussion in 'Gaming (Software and Graphics Cards)' started by hertzian56, Feb 7, 2021.

  1. hertzian56

    hertzian56 Notebook Deity

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    My only question about that is then why does the bios specifically have a setting to enable or disable the igpu then?

    It says in the bios three options for display mode, 1. igpu only 2. dgpu only 3. MShybrid. I haven't restarted and tried it so far though.

    This is some tongfang variant, under the gateway name, but I have not figured out which one.
     
  2. yrekabakery

    yrekabakery Notebook Virtuoso

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    Agreed. OP should memorize the steps to switch it back, in case the internal display output is shut off. I doubt a budget model like that has a mux switch.
     
  3. hertzian56

    hertzian56 Notebook Deity

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    Ok well afaik the way to get back would be to use an external screen or from some online research, during post into the bios the bios screen might work regardless and just switch back to mshybrid mode.

    https://www.pcspecialist.co.uk/foru...750h-rtx2070-discrete-mode-dead-screen.64119/

    From here in this thread looks like not much gain, but of course every system is different

    https://www.reddit.com/r/XMG_gg/comments/kqq2p6/gaming_performance_in_dgpuonly_vs_mshybrid_aka/

    Here's some nvidia speak but it's pretty general

    https://nvidia.custhelp.com/app/answers/detail/a_id/5097/~/nvidia-advanced-optimus-overview

    Is there any way to check for a mux switch? I don't think there is a manual for this since it looks like it was a limited run for holiday sales.
     
  4. yrekabakery

    yrekabakery Notebook Virtuoso

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    You can just try it. If the internal screen goes dark, switch it back blind or using an external monitor.
     
  5. hertzian56

    hertzian56 Notebook Deity

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    Well from the first link I was actually going to test on msiab the usage of igpu during gaming, maybe if it's minimal it wouldn't be worth it. I just read the annoyance factors, ie no screen at all without lots of reinstall etc, in that first link and am wary now.
     
  6. KING19

    KING19 Notebook Deity

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    This.

    If it was that easy then a lot of people would of done it years ago. The purpose of a MUX switch is to use the Dedicated GPU as the main display giving you full access of Nvidia's Control Panel like a desktop and unlocking the full ability of your GPU. There is no excuse for gaming laptops to not have a MUX switch these days. Personally i have optimus (Hybrid mode) turned on because i need the battery life as i use my laptop for work and other tasks more than gaming. There are some performance increase with it off but the major performance gains is with e-sports games like CS:GO, Overwatch and etc.
     
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  7. hertzian56

    hertzian56 Notebook Deity

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    Well the reason I'm interested is the relatively weak cpu in this budget model, I always have mine plugged in it's not an on the go business machine etc Free perf bumps always preferred to spending money lol

    Anyways so from this ncp screen I can infer no mux switch then?

    ncp igpuetc.png
     
  8. Gumwars

    Gumwars Notebook Consultant

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    From what you indicated earlier, you are MUX equipped:

    upload_2021-2-9_13-34-43.png

    If you haven't disabled the iGPU in BIOS, then the system will appear in the Nvidia Control Panel like a MUXless laptop. If you disable it in BIOS, the iGPU won't appear in the control panel.
     
  9. hertzian56

    hertzian56 Notebook Deity

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    Okay I'll have to try it and see then.
    BIOS Gateway.jpg
     
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  10. hertzian56

    hertzian56 Notebook Deity

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    Upadate: Mux switch confirmed by a user in my thread in the other manufacturers section for this model. Thanks to @sfinney76
     
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