[ltp] W520: strange suspend-to-ram issue solved!

[ds2k]

Once IronHide is installed, how do I make it turn the video off on suspend
and on on resume automatically?


Fionn Behrens wrote:
> 
> 
> Hi all,
> 
> I just wanted to tell you about the solution to a problem that has 
> plagued me for months.
> 
> I have a Sandy Bridge W520 with Optimus. It showed the following 
> behaviour: You could suspend (S3) it once without a problem, but after 
> the second try, it would use a lot more power than before AND it wont 
> run any faster than the lowest possible CPU clocking speed. This 
> behaviour only went away when I shut down the computer, cut off power 
> and restarted it.
> 
> Yesterday I found the solution to this: Install IronHide and use it to 
> switch the nVidia Core just on and off once after resume. Not only does 
> the power consumption go back to normal, but CPU frequency scaling 
> suddenly starts to work again, too!
> 
> Now I have the perfect Notebook, at last - great display, a nice heap of 
> RAM, up to 6hrs runtime on the stock 9cell and full quad core power when 
> I need it. No compromises. YAY! :-)
> 
> hope this helps anyone who experiences the same issue.
> 
> kind regards,
>               Fionn
> 
> -- 
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> 
> 

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