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Hanging on power management

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I am having a problem booting the Niresh installer on my Lenovo G505s (59406417).

 

Here are its specifications:

 

Processor: Quad-Core AMD A10-5750M.

 

Motherboard Chipset: AMD K15 IMC

 

BIOS Version: 2.05, dated December 12th, 2013.

 

Network Cards:

    

       Wireless: Qualcomm Atheros AR9565

       Ethernet: Qualcomm Atheros AR8172/8176/8178 PCI-E Fast Ethernet Controller

      

 

Graphics: Dual Graphics - Integrated Radeon HD 8650G + Dedicated Radeon HD 8570M

 

Audio: Dolby Digital Audio (I couldn't find much info, sorry)

 

Memory: 6GB

 

 

I used these boot flags: amd -v -x.

 

While booting, Niresh abruptly stopped loading and hung on "power management may be incomplete or unsupported".

 

thumb_1407297140__p2150324.jpg

 

A few moments later, I saw a black mouse (a rainbow-colored wheel sometimes) and a reboot message:

 

thumb_1407297302__p2150325.jpg

 

How do I fix this?

 

 

 

 

 

 

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