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

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_at_fbsd.ru