Date: Tue, 6 Mar 2012 15:25:06 -0800 From: =?windows-1251?B?y/7h7uzo8CDD8Ojj7vDu4g==?= <nm.knife@gmail.com> To: matt <sendtomatt@gmail.com>, freebsd-acpi@freebsd.org, freebsd-current@freebsd.org Subject: Re: x220 notes Message-ID: <CAHi1Jsf%2BGVN6YNH_GcsECKdcDLsMQz9yQP-WNEKU8rC%2B%2B%2Biz_Q@mail.gmail.com> In-Reply-To: <4F40A2D4.6000000@gmail.com> References: <4E836C06.9070405@gmail.com> <CAGH67wS1YR6V-DPAGtYN4RfrHSbgCrN=Ey2ngTVe6yBiBO1SZw@mail.gmail.com> <4E8374A7.90105@gmail.com> <CAGH67wT8ReUnDGXdxxOwd7x7CmRP7sDAzyFbSKrwT79tM=nZ5A@mail.gmail.com> <CAN6yY1vqNJhtxE2SVqawWxW6Jo-6M7SHwiL-Xo%2BhH-8_d8BHnQ@mail.gmail.com> <4E9BDF13.4040006@gmail.com> <4F38211D.4070305@mehnert.org> <4F40A2D4.6000000@gmail.com>
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I will be buying a X220 soon and have some questions: 1. Which wireless has better support? ThinkPad 11b/g/n Wireless (Realtek RTL8192SE / RTL8188CE) Intel Centrino Wireless-N 1000 2. I've read bad reviews about webcam having poor quality on GNU/Linux, so I would assume it will be the same on FreeBSD with webcamd and not worth the $30? (which also frees up space for 3x3 antenna) 3. Any disadvantages in usage for turning off the UEFI? 4. How far is the AMD64 kernel suspend/resume? What do you mean by video doesn't resume? 5. I'll be getting the IPS screen and want to make sure all the brightness issues won't f it up. Is there yet a working way to control brightness without interrupting the fan? Cheers. 2012/2/18 matt <sendtomatt@gmail.com> > I got 10-CURRENT installed on the x220 again. > > 1. Standard GENERIC kernel > 2. Buildworld/installworld from today's CVS > 3. No DRM/KMS patches or any other "factors" > 4. Witness KDB disabled in loader.conf (otherwise panic on suspend). > 5. setting hw.pci.do_power_suspend=0 wil prevent some AE_NO_METHOD > errors where it tries to set PCI express ports to D2 (the ports > themselves, I think...not the attached device) > > This is what I've found as I investigate the backlight/resume issue. I > am not very good at understanding ASL, but here's what I see. > > 1. _WAK calls a number of display related methods > 2. There are apparently brightness related calls here, as well as some > other video related calls > 3. Some of this behavior depends on /VIGD, whatever that is. > 4. The brightness calls seem to connect over LPC to the embedded controller > 5. Some of the brightness methods check OSI for WIN7 > > I will add that iasl finds 35 errors in this fine piece of lenovo work. > However, none of the errors appear to be near _wak. I've attached an > acpidump asl if it helps anyone who has a better eye for ASL and > resume/brightness problems. I think we can control brightness at least > with acpi_video, it attaches but not correctly..."active=0"...I haven't > gone back over its source in comparison with ASL yet either. Probably > acpi_ibm will work also, as the acpi methods seem to just call the > embedded controller over the lpc bus? Unfortunately it seems something > has changed with the ec, as some of the data becomes corrupt when > acpi_ibm is loaded. > > Resume obviously works fine in Win7, works 80-95% of the time in Linux > (seems like KMS fail when it doesn't resume on Linux), and it resumes > fine on FreeBSD except no video. No bad messages in logs after resume. > > Matt > > > _______________________________________________ > freebsd-acpi@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-acpi > To unsubscribe, send any mail to "freebsd-acpi-unsubscribe@freebsd.org" > > -- Lyubomir Grigorov (bgalakazam)
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