Date: Wed, 28 Sep 2011 12:32:55 -0700 From: Garrett Cooper <yanegomi@gmail.com> To: Matt <sendtomatt@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: x220 notes Message-ID: <CAGH67wT8ReUnDGXdxxOwd7x7CmRP7sDAzyFbSKrwT79tM=nZ5A@mail.gmail.com> In-Reply-To: <4E8374A7.90105@gmail.com> References: <4E836C06.9070405@gmail.com> <CAGH67wS1YR6V-DPAGtYN4RfrHSbgCrN=Ey2ngTVe6yBiBO1SZw@mail.gmail.com> <4E8374A7.90105@gmail.com>
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On Wed, Sep 28, 2011 at 12:25 PM, Matt <sendtomatt@gmail.com> wrote: > On 09/28/11 11:52, Garrett Cooper wrote: >> >> On Wed, Sep 28, 2011 at 11:48 AM, Matt<sendtomatt@gmail.com> =A0wrote: >>> >>> I just picked up an X220 and have been trying to get FreeBSD running >>> well. >>> >>> Some tips >>> ichsmb >>> acpi_video (attaches but doesn't work) >>> aesni >>> coretemp >>> >>> powerd is a must, these processors seem to be designed to run very hot >>> unless throttled. Somehow my C3 state disappears when on AC, I think >>> that's >>> a bios setting? >>> >>> acpi_ibm needs "LEN0068" added to the list of ibm ids at the beginning = of >>> /usr/src/sys/dev/acpi_support/acpi_ibm.c...I'd write a patch but that >>> machine is in a world of ports hurt right now :). >>> With this many of the sysctls and leds work, still no brightness (w or >>> wout >>> intel DRI from Konstantin...thanks Konstantin!!) >>> >>> sleep/resume work, but screen is off after resume and cannot be awakene= d >>> (even w/ dpms and or acpi_video). >> >> This is probably another driver bug. Try kldunloading and kldloading >> your wlan driver to see if that works, and/or start stripping your >> kernel of unnecessary options until you find the magic formula for >> what works, and just apply that to rc.suspend // rc.resume and file a >> PR for the driver bug if there isn't one already. >> HTH, >> -Garrett >> > > Driver bug in wireless can leave the screen off? > I can for instance type reboot and reboot etc. > > I also noticed that acpi_video attaches, but nothing works. Looking at AM= L > it appears that the correct "hooks" are present, but lcd0 shows as inacti= ve > and does not go to "1" in sysctl. > > ibm_acpi lcd_brightness hooks do not work either. > > debug.acpi.reset_video does VERY bad things, involving a reboot loop and > flashing thinklight > > Is there anything else I can do to turn the damn thing back on? > Any other logging or things to look at? > > I will try a minimal kernel shortly. A driver bug in general will bring up a blank screen because the system doesn't fully resume. Are you using amd64 or i386? -Garrett
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