Messages in this thread | | | Date | Wed, 30 Nov 2011 22:39:32 +0100 | Subject | Re: i915: RC6 causes sudden shutdowns | From | Patrik Kullman <> |
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So is this being worked on already?
It would be wonderful to get this fixed since it gives additional hours of battery life, but it's currently unusable for my this machine.
2011/11/24 Patrik Kullman <patrik.kullman@gmail.com>: > Hi, > > I recently acquired the Asus Zenbook UX31E but have been looking for > ways to extend the battery life. > > I read that the i915_enable_rc6 parameter could decrease power usage > significantly and tried it with the 3.1.1 and 3.1.2 kernels, and > indeed it does. > However, I (and the other Zenbook-owners from the Ubuntu forums) > experience sudden, unexpected shutdowns (for me, 1-4 times per day) > with this parameter. > It's as sudden as a power loss. > > It happens both when pcie_aspm=force is supplied and when it's not. > What also is a bit concerning is that I read that RC6 is going to be > enabled by default from 3.2 onward? > > How would we go about troubleshooting this? > > Or is the only option to blacklist the machine from RC6 if it doesn't > work as is?
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