in ThinkPad: T400 / T500 and newer T series Laptops https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T-series-Laptops/Disabling-the-GPU/m-p/4360386 ThinkPad: T400 / T500 and newer T series Laptops topics Fri, 15 Feb 2019 04:15:44 +0000 tp01_en <![CDATA[ ]]> https://forums.lenovo.com/topic/findpost/1300/4360386/4360386 I have read the external ports might be connected to the dGPU and so disabling it will lead to the loss of those ports but can't find this option in the BIOS. Is this because the manual is a copy of the T470 and so the option is ommitted or it can't be disabled?

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Fri, 15 Feb 2019 04:15:44 +0000 https://forums.lenovo.com/topic/findpost/1300/4360386/4360386 lacaca
<![CDATA[ Re: Disabling the GPU? ]]> https://forums.lenovo.com/topic/findpost/1300/4360386/4360421 Starting from xx40 (Haswell) generation, only mobile Workstation class devices (only P series, excluding "s" devices, maybe X1 Extreme also support it, but hadn't had a possibility to check it) have an option to disable iGPU, dGPU is always enabled. Other devices probably doesn't have a component ]]> Fri, 15 Feb 2019 05:55:02 +0000 https://forums.lenovo.com/topic/findpost/1300/4360386/4360421 Saperkus <![CDATA[ Re: Disabling the GPU? ]]> https://forums.lenovo.com/topic/findpost/1300/4360386/4361578 AFAIK, no external ports are connected to the dGPU; the dGPU also should not be used (and thus should hardly consume any power) in normal 2D mode.

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Sat, 16 Feb 2019 18:49:14 +0000 https://forums.lenovo.com/topic/findpost/1300/4360386/4361578 dr_st