x220 notes

[Erich Dollansky]

Hi,

first of all, I use 10 on my X220 since end of May.

I do not use currently suspend and resume on my X220. I use a script
for the brightness which makes it easy to handle for me.

There was (is) a problem with iwn I did not find the time to
investigate with a new kernel until today.

We use the X220 for serious work presenting our product/company to
clients. As crashes would not shed a good light on us, a reliable
machine is the minimum we have to have.

In all this we experienced only one problem once in a while. The
machine crashes the moment X starts. As this only happens when the
machine is freshly started, we start X long before we start the
presentation.

There is a fundamental problem with powerd which stops a notebook to
get better battery life time. powerd does not include the display
brightness and it does not inlcude user activities in its process to
regulate the CPU speed. In addition, the algorithm to find the best CPU
speed gets easily irritated with short bursts of peak performance
requirements.

Erich

On Mon, 13 Aug 2012 10:18:40 -0700
Любомир Григоров <nm.knife at gmail.com> wrote:

> Hello all,
> 
> Several months passed and the X230 came out. I don't know how much
> more work will be done to get the X220 compatible. I just wanted to
> check in if it is still not possible to suspend/resume. I conquered
> the brightness and wireless problems, I even have descent battery (5
> hours opposed to 7-8 in Windows), but suspend resume is still an
> issue. I am running 9.0-STABLE and was wondering if 9.1 will change
> something when it comes out. What is the state of FreeBSD on you
> other X220 users?
>