ThisIsBrutus Posted April 3, 2015 Share Posted April 3, 2015 <article>Hello everyone,Im having a bit of a problem.TL;DR - Pressed fn+f5 to switch Optimus settings and now windows 8 crashes right after boot-up.___________________Im going home to visit some family this weekend and decided to bring my AW17 r1 along for some movie watching in the train.I boot it up in the train, turn off the lights and press fn+f5 to reboot without the dGPU to extend the battery life.And this is where it gets problematic.It will boot into Windows fine, but after a couple of seconds it gets to a start up-process which apparently after the Optimus-switch makes the PC crash.. Mouse and keyboard input stops working although it does kinda look like it's doing something and hasn't crashed completely, but I can't access it.The biggest problem is that the freezing occurs before I get a chance to press fn+f5 again, and I'm now stuck in a loop where I can't boot up.I might add that I'm running it pretty heavily overclocked with modified driver and vbios.I can get it to boot up in safe mode just fine and I have tried fiddling with power settings since I figured that might be the problem, it still doesn't work when I tried to boot up normally, and since the fn+ shortcuts aren't available in safe mode it doesn't really help me much, and I can't find anywhere in the OS(or BIOS) where I can turn off Optimus.I hope anyone is able to help or this is gonna be a loooong train ride. </article> Quote Link to comment Share on other sites More sharing options...
timduke985 Posted July 30, 2015 Share Posted July 30, 2015 <article>Hello everyone,Im having a bit of a problem.TL;DR - Pressed fn+f5 to switch Optimus settings and now windows 8 crashes right after boot-up.___________________Im going home to visit some family this weekend and decided to bring my AW17 r1 along for some movie watching in the train.I boot it up in the train, turn off the lights and press fn+f5 to reboot without the dGPU to extend the battery life.And this is where it gets problematic.It will boot into Windows fine, but after a couple of seconds it gets to a start up-process which apparently after the Optimus-switch makes the PC crash.. Mouse and keyboard input stops working although it does kinda look like it's doing something and hasn't crashed completely, but I can't access it.The biggest problem is that the freezing occurs before I get a chance to press fn+f5 again, and I'm now stuck in a loop where I can't boot up.I might add that I'm running it pretty heavily overclocked with modified driver and vbios.I can get it to boot up in safe mode just fine and I have tried fiddling with power settings since I figured that might be the problem, it still doesn't work when I tried to boot up normally, and since the fn+ shortcuts aren't available in safe mode it doesn't really help me much, and I can't find anywhere in the OS(or BIOS) where I can turn off Optimus.I hope anyone is able to help or this is gonna be a loooong train ride. </article>I had the exact same problem with my Alienware 17 r1 with 980m and modified driver/vbios. Graphics switching only works with Windows 8 or 8.1 in uefi mode. To get it to boot I had to remove the 980m and start it like that. Then reinstalled Win 8.1 uefi. Quote Link to comment Share on other sites More sharing options...
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