Re: Multiple problems on Thinkpad A31p

Matthew Garrett
2004-12-05T02:06:07Z

On Sat, 2004-12-04 at 12:47 +0100, Richard Jelinek wrote:

> * Closing the lid, the machine goes down and the "moon"-led goes on
> indicating the suspend state. All is quiet, however, the machine
> generates significant heat. Examining the situation, all fans, the
> HD etc. are switched off, even the display, but some second after
> the display has been switched off completely, THE BACKLIGHT GOES ON
> AGAIN! Uhhh... So after 2hours in this "suspend" mode, the battery
> is just 70% charged. (Took 8hours with APM)

Not all hardware seems to switch the backlight off sensibly on entering
ACPI suspend. Your suspend script probably tries to trigger the X DPMS
call, which will blank the screen - the kernel then switches back to a
console and turns the backlight on again. Can you try the program
attached to
http://bugzilla.kernel.org/show_bug.cgi?id=2576 ?

> Even worse, the external (USB Radio) mouse doesn't work
> anymore. Neither did the ethernet (e100), but somehow I managed to
> configure it (mungled the PCI latencies of the ethernet controller),
> so that ethernet is not lost after S3 resume. And there's no way to
> bring the mouse back to life again but reboot. The internal PS/2
> mouse (trackpoint) works fine.

2.6.9 has better USB power management.

> * S5 works as described, unfortunately after resume, the clock shows
> exactly the time, when the shutdown did happen.

I think this has been fixed, but I don't know whether it'll hit 2.6.10.
Adding hwclock --hctosys in the resume script ought to work around it.

--
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org