Date: Fri, 18 May 2012 20:34:33 -0700 From: Kevin Oberman <kob6558@gmail.com> To: user10508@gmail.com Cc: freebsd-x11@freebsd.org Subject: Re: pcbsd9-stable-20120505 snapshot - howto enable intel rc6 Message-ID: <CAN6yY1vMY3cFWrZMBeY6bUV3HCPz51WKamDghjxs9B6FoyaqzQ@mail.gmail.com> In-Reply-To: <4FB6AACA.2040206@gmail.com> References: <4FB503A6.8000506@gmail.com> <20120517220343.GY2358@deviant.kiev.zoral.com.ua> <CAN6yY1vpC%2B%2BUTruFu0Yntbs6y%2B97py_9ryXNJkhW1bUjVM6c%2BA@mail.gmail.com> <4FB6AACA.2040206@gmail.com>
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On Fri, May 18, 2012 at 1:02 PM, <user10508@gmail.com> wrote: > Kevin Oberman@ > > Thank you for your suggestion. > > hint.acpi_throttle.0.disabled=1 was in /boot/loader.conf, I added > hint.p4tcc.0.disabled=1 and rebooted. Unfortunately, these changes to > /boot/loader.conf had no effect on the thermal or battery life problems I've > been experiencing. > > Konstantin Belousov@ > > Thank you for your suggestion. It reminded me that I neglected to report > that screen artifacts appeared as system temperature increased. No surprise > about that right? Initially few in number and small in area, over time, the > number of artifacts and the size of affected areas increased. Redraws, > manual or application related, removed the artifact. > > In researching the problems I've been experiencing, I found comments about > initial releases of intel's X driver on linux. Early software had poor > battery life and thermal problems on laptops. > > So far so good. To me this means that there is nothing unusual about the > initial freebsd release of kms support for the intel sandybridge IGA. > > I installed linux-mint debian eddition which was released just a few days > ago. This release of linux uses a linux 3.2 kernel and for X, > intel-2.18.0-1. > > This combination results in normal battery life and no thermal problems. > > Given the close relationship between linux kernel changes and intel driver > changes, it may be premature to assume that just using X intel-2.18.0 on a > freebsd stable kernel will solve everything. > > On a well ventilated server, I think this initial release of kms support may > be good to go. > > For laptops, I don't think its quite there yet. > > I'm going to wait for RC6 functionality to percolate into X for Intel. When > its ready, I'm confident it will solve the problems I've been experiencing. FWIW, I am running on a laptop with Intel-KMS driver with none of the power or thermal issues you are having. ThinkPad T520 Sandybridge. My cores are currently at 51 and 55 degrees with a load average of about .5, so pretty calm. Something is different in your system that is triggering the problem. I just don't know about hardware or software. -- R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com
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