Date: Sun, 27 May 2012 11:53:05 -0700 From: Kevin Oberman <kob6558@gmail.com> To: Pierre-Luc Drouin <pldrouin@pldrouin.net> Cc: "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org> Subject: Re: How can I help with thinkpad x220 issues? Message-ID: <CAN6yY1uMHY7M6nxpjmedA166qHG8ddG0OFJ=otbWM9KM2Q34Hw@mail.gmail.com> In-Reply-To: <CANT0rcsxTeOfc2_0a8AQx_%2BhsNwRDXdqTm02S%2Bgsf51W4Qsamw@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> <CANT0rcsxTeOfc2_0a8AQx_%2BhsNwRDXdqTm02S%2Bgsf51W4Qsamw@mail.gmail.com>
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On Fri, May 25, 2012 at 10:10 PM, Pierre-Luc Drouin <pldrouin@pldrouin.net> wrote: > > > On Friday, May 25, 2012, Kevin Oberman wrote: >> >> On Wed, May 23, 2012 at 11:55 PM, Lars Engels <lars.engels@0x20.net> >> 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.= eu> >> >> 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 = at >> >> > resume. Is that right? >> >> > >> >> > So my question is, how can I help make progress in any of these are= a? >> >> > (though I admit I'm more interested in having the brightness proble= m >> >> > solved than the resume one) >> >> > >> >> > I don't know anything about ACPI or about FreeBSD or Linux internal= s, >> >> > but I'm quite proficient in C and somewhat used to navigate in >> >> > unknown >> >> > 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 lo= t >> >> 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 u= p? >> >> 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, >> =A0 =A0root 0x121, subw 0x0, time 166670035, (96,121), root:(100,750), >> =A0 =A0state 0x0, keycode 176 (keysym 0x1008ff13, XF86AudioRaiseVolume), >> same_screen YES, >> =A0 =A0XLookupString gives 0 bytes: >> =A0 =A0XmbLookupString gives 0 bytes: >> =A0 =A0XFilterEvent returns: False >> >> KeyRelease event, serial 33, synthetic NO, window 0x4600001, >> =A0 =A0root 0x121, subw 0x0, time 166670185, (96,121), root:(100,750), >> =A0 =A0state 0x0, keycode 176 (keysym 0x1008ff13, XF86AudioRaiseVolume), >> same_screen YES, >> =A0 =A0XLookupString gives 0 bytes: >> =A0 =A0XFilterEvent returns: False >> >> KeyPress event, serial 33, synthetic NO, window 0x4600001, >> =A0 =A0root 0x121, subw 0x0, time 166927339, (98,0), root:(102,629), >> =A0 =A0state 0x0, keycode 174 (keysym 0x1008ff11, XF86AudioLowerVolume), >> same_screen YES, >> =A0 =A0XLookupString gives 0 bytes: >> =A0 =A0XmbLookupString gives 0 bytes: >> =A0 =A0XFilterEvent returns: False >> >> KeyRelease event, serial 33, synthetic NO, window 0x4600001, >> =A0 =A0root 0x121, subw 0x0, time 166927451, (98,0), root:(102,629), >> =A0 =A0state 0x0, keycode 174 (keysym 0x1008ff11, XF86AudioLowerVolume), >> same_screen YES, >> =A0 =A0XLookupString gives 0 bytes: >> =A0 =A0XFilterEvent 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 > > > You should be able to bind these keys to commands such as mixer vol +5 am= d > mixer vol -5 Actually, to get it to work I had to bind to "/usr/sbin/mixer vol +5:+5" and "/usr/sbin/mixer vol -5:-5" Just doing +5 set the volume to 5% (absolute) and -5 did nothing. Slightly odd, but I do have it working, now, t least when Gnome is being used. Thanks! --=20 R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com
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