Bug 6961

Summary:	S3: no wakeup - hp dv8000t (SATA)
Product:	ACPI	Reporter:	Brannon Klopfer (bklopfer)
Component:	Power-Sleep-Wake	Assignee:	acpi_power-sleep-wake
Status:	REJECTED UNREPRODUCIBLE
Severity:	normal	CC:	acpi-bugzilla, bunk
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.16, 2.6.17.6, 2.6.17.7	Subsystem:
Regression:	---	Bisected commit-id:

Description Brannon Klopfer 2006-08-04 15:47:56 UTC

Most recent kernel where this bug did not occur: N/A -- always occured.

Distribution: Gentoo 2006.0, Ubuntu 6.06

Hardware Environment: i686 SMP, core duo t2400 (see
http://www.stanford.edu/~bklopfer/wontsuspend/ for /proc/cpuinfo, lspci, etc.)

Software Environment: http://www.stanford.edu/~bklopfer/wontsuspend/ for some
version info. From both runlevel 1 and X. With and without kernel support for:
modules, usb, ide (hard disk is sata), preemption, smp + others.

Problem Description:
echo mem > /sys/power/state does what it's supposed to, but upon resume,
*nothing* responds -- caps lock, display, network, etc. all dead. I've tried
cacheing (cat `which poweroff`) poweroff and then running $SUSPEND ; poweroff
-f, but nothing happens with that either.


Steps to reproduce: echo mem > /sys/power/state on $HW_REVISION dv8000t. Again,
see http://www.stanford.edu/~bklopfer/wontsuspend/ for useful info
(/var/log/messages, /proc/cpuinfo, etc.)

Comment 1 Len Brown 2006-08-09 23:12:47 UTC

upon suspend, is there an indicator (such an LED) that shows
the machine actually suspended?

What methods have you tried to wake up the machine.
Does closing and opening the lid make the indicator above change?
Does pressing the power button?

"maxcpus=1" is no help?

Comment 2 Brannon Klopfer 2006-08-10 11:12:27 UTC

The two power LEDs (one on keyboard, one on front) blink upon suspend, and the
fan, hd, etc. all spin down.

On resume, the machine does power on again -- power LED goes on constent, media
keys on the keyboard light up, disk and fan spin up, and there will be CD access
if I eject and insert a disc. This unresponsive resume will happen from lid,
power/media key(s), keyboard, etc. Note that *any* keyboard key will work, not
just Fn.

maxcpus=1 (or disabling SMP in the kernel) is no help, and noapic/nomce/pci=bios
does nothing.

The problem persists regardless of native/legacy SATA mode (ahci/ata_piix).
However, I'm not sure it's a SATA problem at all, as I've tried a kernel with
*no* support for SATA/IDE at all, using a USB pen drive as root (I have the same
problem upon resume -- dead).

Comment 3 Len Brown 2007-09-06 15:16:49 UTC

Is this still a problem in linux-2.6.22.stable or later?

Comment 4 Len Brown 2007-09-07 02:06:18 UTC

> I returned my laptop (dv8000t) shortly after I got it; I'm currently 
> using my ThinkPad 600E -- why mess with perfection?
>
> Sorry I can't help.
>
> Brannon

okay, thanks.
closed.

Comment 5 Rohit Kaul 2007-10-01 23:27:49 UTC

The problem still exists, exactly as Brannon described. Using kubuntu 7.10 beta,
Linux 2.6.22-12-generic #1 SMP Sun Sep 23 18:11:30 GMT 2007 i686 GNU/Linux