Date: Sat, 26 May 2012 01:10:36 -0400 From: Pierre-Luc Drouin <pldrouin@pldrouin.net> To: Kevin Oberman <kob6558@gmail.com> Cc: "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org> Subject: Re: How can I help with thinkpad x220 issues? Message-ID: <CANT0rcsxTeOfc2_0a8AQx_%2BhsNwRDXdqTm02S%2Bgsf51W4Qsamw@mail.gmail.com> In-Reply-To: <CAN6yY1u6DzSyGBCRB4zbstDP7ES7p4SjuyXkFQU5KkE264W6xw@mail.gmail.com> References: <20120523151357.GC97037@sigil.instinctive.eu> <CAN6yY1vbc5DJcc4GrktyJaokA6CPNgTdx5X%2BHH7J1W_NvLJPxA@mail.gmail.com> <20120524065532.GB39168@e-new.0x20.net> <CAN6yY1u6DzSyGBCRB4zbstDP7ES7p4SjuyXkFQU5KkE264W6xw@mail.gmail.com>
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On Friday, May 25, 2012, Kevin Oberman wrote: > On Wed, May 23, 2012 at 11:55 PM, Lars Engels <lars.engels@0x20.net<javas= cript:;>> > wrote: > > On Wed, May 23, 2012 at 03:19:14PM -0700, Kevin Oberman wrote: > >> On Wed, May 23, 2012 at 8:13 AM, Natacha Port=E9 <natbsd@instinctive.e= u<javascript:;>> > wrote: > >> > Hello, > >> > > >> > I happen to be the owner of a brand new Lenovo Thinkpad X220. From a > >> > recent thread here I gather it almost works with FreeBSD, and the > >> > remaining problems are screen brightness and screen left unpowered a= t > >> > resume. Is that right? > >> > > >> > So my question is, how can I help make progress in any of these area= ? > >> > (though I admit I'm more interested in having the brightness problem > >> > solved than the resume one) > >> > > >> > I don't know anything about ACPI or about FreeBSD or Linux internals= , > >> > but I'm quite proficient in C and somewhat used to navigate in unkno= wn > >> > huge code bases. > >> > > >> > So I guess the first steps to help would be to first learn stuff. > >> > > >> > However I don't have much time available. I guess FreeBSD 11 would > reach > >> > end-of-life before I could reach a level of understanding I find > >> > satisfying (though I admit I have high standards there), so I would > have > >> > to prioritize. So my question is rather *what* should I learn to > provide > >> > help as soon as possible? > >> > > >> > For example, if the brightness issue is just a matter of extracting > the > >> > right numbers from linux kernel code and plug them into FreeBSD, I > >> > probably won't need to learn anything more about ACPI than what I > would > >> > gather looking at the code. I guess if it was that simple someone > would > >> > have already done it, but that illustrate well my point about > >> > prioritizing learning. > >> > > >> > Or is the barrier of entry too high for me to be of any use? > >> > >> If it has not been committed, the minor fix to make acpi_ibm work on > >> modern ThinkPads needs to be committed. Once done, the issues > >> mentioned need to be addressed.This includes getting brightness to be > >> setable from both the keypad hot-keys and from applications. ATM, I > >> can set the brightness, but making the hot-keys work will require the > >> ability to extract the current level so that it may be adjusted > >> plus/minus one. > >> > >> The other issue is volume control keys don't work. I suspect it will > >> be similar to brightness, but I don't know just how to figure it out. > >> > >> I should also mention that I don't have an X220. I have a T520, but > >> the issues seem to be identical, so fixing one will probably fix a lot > >> of recent ThinkPads. > > > > About the key: > > > > Did you try loading "acpi_ibm", "sysctl dev.acpi_ibm.0.events=3D1", > > "cat /var/run/devd.pipe" and then press the keys. Does anything show up= ? > > After adding LEN0068 ti the ACPI IDs, I tried this and I get no ACPI > event when pressing either button, but I do get regular key press > events: > KeyPress event, serial 30, synthetic NO, window 0x4600001, > root 0x121, subw 0x0, time 166670035, (96,121), root:(100,750), > state 0x0, keycode 176 (keysym 0x1008ff13, XF86AudioRaiseVolume), > same_screen YES, > XLookupString gives 0 bytes: > XmbLookupString gives 0 bytes: > XFilterEvent returns: False > > KeyRelease event, serial 33, synthetic NO, window 0x4600001, > root 0x121, subw 0x0, time 166670185, (96,121), root:(100,750), > state 0x0, keycode 176 (keysym 0x1008ff13, XF86AudioRaiseVolume), > same_screen YES, > XLookupString gives 0 bytes: > XFilterEvent returns: False > > KeyPress event, serial 33, synthetic NO, window 0x4600001, > root 0x121, subw 0x0, time 166927339, (98,0), root:(102,629), > state 0x0, keycode 174 (keysym 0x1008ff11, XF86AudioLowerVolume), > same_screen YES, > XLookupString gives 0 bytes: > XmbLookupString gives 0 bytes: > XFilterEvent returns: False > > KeyRelease event, serial 33, synthetic NO, window 0x4600001, > root 0x121, subw 0x0, time 166927451, (98,0), root:(102,629), > state 0x0, keycode 174 (keysym 0x1008ff11, XF86AudioLowerVolume), > same_screen YES, > XLookupString gives 0 bytes: > XFilterEvent returns: False > > I can set these up as hot keys and issue a command, but I have no idea > what I can set to adjust the hardware volume. But I will also need to > read out the current volume so I know what value to which is should be > set. (Same issue as with brightness.) > -- > R. Kevin Oberman, Network Engineer > E-mail: kob6558@gmail.com <javascript:;> You should be able to bind these keys to commands such as mixer vol +5 amd mixer vol -5 > _______________________________________________ > freebsd-acpi@freebsd.org <javascript:;> mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-acpi > To unsubscribe, send any mail to "freebsd-acpi-unsubscribe@freebsd.org<ja= vascript:;> > " >
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