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Re: [Fwd: Re: enable i915 rc6 save 7 watt on kernel 3.2]



Am Freitag, 20. Januar 2012 schrieb keitho@strucktower.com:
> > On Thu, Jan 19, 2012 at 10:29:19AM +0100, Martin Steigerwald wrote:
> >> merkaba:~> cat /etc/modprobe.d/i915-kms.conf
> >> options i915 modeset=1 i915_enable_rc6=1 i915_enable_fbc=1
> >> semaphores=1
> 
> When I try to use this line of options I get an error message saying
> i915_enable_fcb is an unknown parameter. Is that for kernel 3.2 only?

That was misspelled as you found out meanwhile.

> What does that parameter refer to? I tried googling on
> "i915_enable_fcb" to no avail.

Look at my initial response, I added the links in the comments for this 
configuration file for a reason.

Especially:

merkaba:~> cat /etc/modprobe.d/i915-kms.conf 
[…]
# Eugeni Dodonov, Intel Linux Graphics
# Following the open source road from Kernel to UI toolkits
# http://www.scribd.com/doc/73071712/Intel-Linux-Graphics
options i915 modeset=1 i915_enable_rc6=1 i915_enable_fbc=1 semaphores=1

I do not use a power meter. I used earlier powertop versions (prior to 
version 2) with my ThinkPad T42 on battery, the newer ones do not show 
power consumption on battery anymore. I think it should be viewable by 
some acpi command.

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


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