https://bugzilla.kernel.org/show_bug.cgi?id=43276
Summary: Resume fails after suspending Toshiba Satellite
C675D-S7109 laptop
Product: ACPI
Version: 2.5
Kernel Version: 3.4.0-030400rc6-generic
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
AssignedTo: acpi_power-sleep-w...@kernel-bugs.osdl.org
ReportedBy: dan.furl...@earthling.net
Regression: No
Originally reported as an Ubuntu bug -- they suggested I report upstream.
Please let me know if I should re-attach all the files.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1000016
After suspending, there's no way to resume (tried keys, mouse buttons, power
button). The fan was still running and both power LEDs were on (one indicating
the laptop is plugged in, one indicating it's powered on). There is no disk
LED on this laptop.
I held down the power button for 4-5s to force it to power off. Fan goes off,
HD spins down, power light goes out, all as expected. (Occasionally when
forcing power off, the laptop powers back on as soon as my finger is removed
from the power button. May take 3-4 times to get it to stay off.)
When I hit the power button to turn it back on, fan comes on, HD briefly makes
some noise, but it doesn't show the BIOS splash screen or anything -- just a
totally black screen, like before I powered it off. The backlight is not on.
Removing and replacing the battery (while unplugged) is the only way to get it
to boot normally.
I tried sudo pm-hibernate -- it worked, except it didn't actually shut down the
laptop. After I heard the HD spin down I forced power off. On power-on, it
resumed from hibernation just fine. This works reliably, aside from having to
manually force power off, which sometimes fails.
I have no way of knowing if this is a regression -- I just got the laptop last
week, blew away Windows and installed Ubuntu.
One other thing I should mention -- rarely, the keyboard and mouse won't work
when Ubuntu boots up. What's interesting is that the keyboard will work in
Grub, but then once the splash/login screen comes up, no dice. Force shutdown
and startup fixes. I'm not too worried about this right now, just mentioning in
case it could be related somehow.
====
I tried a few more things.
I rebooted in single-user mode using the 3.4.0 rc6 kernel and followed
directions here:
https://wiki.ubuntu.com/DebuggingKernelSuspend
I see this in dmesg:
[ 2.268515] Magic number: 12:953:1001
[ 2.268604] pnp 00:03: hash matches
I don't see any 00:03 in lspci output (attached to the Ubuntu bug report).
find /sys/devices -name "*00:03*"
/sys/devices/pnp0/00:03
/sys/devices/pci0000:00/0000:00:15.1/0000:03:00.0
/sys/devices/pci0000:00/0000:00:15.1/pci_bus/0000:03
Contents of files under .../pnp0/00:03/
/sys/devices/pnp0/00:03/id: PNP0200
/sys/devices/pnp0/00:03/power/control: auto
/sys/devices/pnp0/00:03/power/async: disabled
/sys/devices/pnp0/00:03/power/runtime_enabled: disabled
/sys/devices/pnp0/00:03/power/runtime_active_kids: 0
/sys/devices/pnp0/00:03/power/runtime_active_time: 0
/sys/devices/pnp0/00:03/power/autosuspend_delay_ms:
cat: /sys/devices/pnp0/00:03/power/autosuspend_delay_ms: Input/output error
/sys/devices/pnp0/00:03/power/runtime_status: unsupported
/sys/devices/pnp0/00:03/power/runtime_usage: 0
/sys/devices/pnp0/00:03/power/runtime_suspended_time: 0
/sys/devices/pnp0/00:03/uevent:
/sys/devices/pnp0/00:03/resources:
state = active
dma 4
io 0x0-0xf
io 0x81-0x83
io 0x87-0x87
io 0x89-0x8b
io 0x8f-0x8f
io 0xc0-0xdf
/sys/devices/pnp0/00:03/options:
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