Re: suspend/restore almost works on Sony PCG-GRX570, acpi_video not good

From: Vladimir Grebenschikov (vova_at_fbsd.ru)
Date: 06/29/05

  • Next message: Giorgos Keramidas: "Re: buildkernel woes" 
    To: Bruno Ducrot <ducrot@poupinou.org>
Date: Wed, 29 Jun 2005 19:01:59 +0400

    В ср, 29/06/2005 в 14:35 +0200, Bruno Ducrot пишет:
    > On Sun, Jun 19, 2005 at 03:31:13PM -0700, George Hartzell wrote:
    > >
    > > Hi,
    > >
    > > I'm working on a Sony PCG-GRX570.
    > >
    > > I'm working with -CURRENT as of a few days ago.
    > >
    > > I'm trying to get suspend and resume to work. S3 suspend and resume
    > > work (from X) when I boot off of a Ubuntu Linux 5.04 live CD.
    > >
    > > Actually, suspend seems to be working. I have
    > >
    > > hw.acpi.reset_video=0
    > > hw.acpi.sleep_delay=4
    > >
    > > and a kernel that's stripped of everything I could get rid of. I
    > > eventually added fxp0 back in to see if it was coming back to life,
    > > the machine still almost resumes but the interface doesn't work (it
    > > does work pre-suspend).
    > >
    > > When I suspend (from the console, no X, using acpiconf -s 3), the
    > > screen dims, the fan stops, and the green LED that usually says
    > > "powered on" switches to a slowly flashing red.
    > >
    > > When I hit the any key, the screen brightens, the fan spins up, and
    > > after a couple of moments the disk light flashes a bit, and settles in
    > > to a fairly normal "I'm awake" kind of activity.
    > >
    > > But the console's dead (no new prompt, no response to the keyboard)
    > > and pinging the interface from another machine doesn't do anything.
    > >
    > > I *have* seen "acpi: resume at..." message in my /var/log/messages
    > > though, so it's getting somewhere.
    > >
    > > I've googled around and it seems that many people have trouble w/ the
    > > backlight on suspend and the fix is the acpi_video module with the
    > > DPMS hack applied. It won't probe/attach on my machine, it seems that
    > > it doesn't have the right capabilities (dim, brighten). Since I
    > > don't care about them but want it to hook up suspend/resume actions, I
    > > butchered the probe routine. That left me w/ something that attached
    > > to 9 different devices (clearly I know enough to be dangerous, but no
    > > more...). The backlight did go out when I suspended though....
    > >
    > > I just noticed that if I lightly pop the power button after a "failed"
    > > resume, I get a lot of disk activity and on the next boot the disks
    > > are clean. Looks like it's doing the S5 thing (more or less) but
    > > doesn't actually poweroff (which it does normally).
    > >
    > > There's a bunch of info (kernel cnfig file, asl, dmesg, loader.conf,
    > > pciconf -lv output, sysctl -a output, uname -a output) at:
    > >
    > > http://grapeape.alerce.com/KONG
    > >
    > > Setting hw.acpi.reset_video to 1 results in a dimmed LCD that
    > > brightens when I hit a key but there's no disk life and the power
    > > button doesn't do anything.
    > >
    > > So, I'm trying to figure out what to try next.
    > >
    > > Can someone suggest something to try?
    > >
    >
    > It seems there are propritary methods to control the brightess
    > looking around the asl.
    > Is there any kind of sony driver under FreeBSD?

    Brightness - yes, see acpi_sony.ko, but it just control how bright it
    is, not turn LCD on/off. 

    -- 
Vladimir B. Grebenschikov
vova@fbsd.ru
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