Xepherix

With the SLI setup, I set the Internal Graphics Device from "Auto" to "Enabled". Windows 8.1 took longer than usual to boot, and eventually my login screen appeared. In Windows 8.1: Checking Device Manager showed both of my 750's and a generic "integrated graphics." I downloaded the Intel 4600HD drivers from Intel's site and viola, I had all 3 GPU's at my disposal. I ran ArmA 3 just out of curiosity and noticed terrible frames and beyond sluggish performance. I viewed my Nvidia Configuration and noticed SLI was not enabled. I tried enabling it, but the config would revert immediately back to disabled. I did no further investigation due to lack of free time. In Debian 8 (Kali Linux 1.1.0a): Debian would not run gdm3 (the display manager, GUI) or the CLI at all. Well I shoudn't say it didn't RUN it, it just didn't display anything. I believe it was the xorg.conf (I installed Debian prior to knowing of Optimus, learned how to use one Nvidia gpu for Pyrit in the link below), it was not configured to display with the integrated graphics. I reinstalled Debian 8 with the integrated graphics enabled, the Intel Display Controller was now recognized by Debian. The OS loaded some sort of generic driver for it (I believe it was pipeline). Both 750s were recognized also, but not being utilized to my knowledge. Intel currently does not have support for the 4600HD in Debian, so I could not install any official drivers for the integrated graphics. Everytime I tried installing Nvidia drivers from there, **** hit the fan. I do not know how to set up the config files to utilize all 3 GPU's, but the point is Debian does recognize them. When I get some free time (I'm in the Army so I don't get much) I will be researching more into Bumblebee and hopefully will learn how to configure my GPU's. Here is the link I followed previously if anyone has any interest in utilizing their Nvidia GPU with Pyrit in Kali Linux. Great guide. https://forums.kali.org/showthread.php?21956-%28Guide%29-Installing-Nvidia-Bumblebee-CUDA-for-Optimus-enabled-Laptops - - - Updated - - - Fuzzilla, to my knowledge that is a no. You can backup your BIOS (I assume it's v3.08) and send the file to svl7, I'm sure he can tweak it. I was originally on v3.08 but downgraded to modified 3.05, I shoud have kept my backup of 3.08 to send myself but I didnt

I did have a few hiccups during the process such as: 1. No display output during boot. I had originally tried fixing this by creating a connection between the JCMOS2 contacts underneath the RAM on the mobo (couldn't remember blind key strokes to reset BIOS). Unfortunately that sent the system into a constant 5-10 restart. The laptop would fire up, fans would spin, then lose all power right away. Simple fix, I hadn't put the RAM back in. After inserting the RAM, the system booted but still did not display video (maybe JCMOS2 does not reset modified BIOS? I did not investigate this further.) I was then easily able to fix the display by following the keystrokes here in the first step. Edmar Hobby - Electronic: Lenovo Ideapad Y580 Insyde Bios Reset/Recovery 2. "Unauthorized slave VGA device" error during boot. This one had me worried, as searching google only came back with results such as Overheated GPU and broken GPU in general. After I realized I had removed/reinserted the Ultrabay GPU multiple times during my troubles with setting proper video settings in Linux (dual booting with Windows 8.1), I noticed the Ultrabay hadn't been inserted all the way judging by the unlocking mechanism on the bottom of the Y510P (it was not all the way down). After correctly inserting the Ultrabay did this problem disappear. I only came here looking for a way to manually turn on my Integrated graphics with both GT 750M's in so I can have access to both Nvidia GPU's while using Pyrit in Kali Linux. Unfortunately Debian 8 does not currently support legit Intel drivers for the 4600HD, so I can not use both Nvidias yet in Linux. I do now have all 3 GPU's active and configured in Windows 8.1 though thanks to your modified BIOS. I really appreciate your work with the BIOS and may stick around judging by the active Y510P community here. Thank you much! Oh yeah, and I sent you some beer funds!