Francisco H. Chiuppani
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Posts posted by Francisco H. Chiuppani
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Be advised !
If you try to completely disable your INTEL video card using the new settings/options made available in the new unlocked y580 bios you will disable as well :
the laptop LCD screen and the HDMI port
since the lcd screen inverter and the HDMI output are directly connected/tied thru the motherboard to the INTEL GPU on the processor ... no bios option will be able to disable it properly because its not designed for that at the circuitry level
On this machine design you can disable the NVIDIA GPU completely but not the other one (the Intel graphics or IGFX) ... when all enabled the intel one manages the Nvidia and the switching goes on thru the optimus scheme implemented at hardware/driver level between the intel GPU inside the CPU and the Nvidia GPU
Lenovo Y580 / Y480 'unlocked' BIOS versions
in Lenovo
Posted
I would let the USB recovery method as a last resort option as things may go very wrong for newbie users .... i got a quicker and better solution (certified procedure)
:feel_good:If you guys somehow made a mess-up in the MODIFIED Y580 bios and changed that tempting option you considered it was gonna be the "real deal" in your computing experience... and now the laptop does not display any video or self-shutdown just seconds after you turn it on ... i got big news for you ;
PROCEDURE:
:GB_bonesrock:Unplug the AC adapter unit from the laptop , detach the battery from the unit as well (no power from any source to the system )
if this detailed procedure DOES NOT WORK for you ... service the laptop with Lenovo.