Red Hat Bugzilla – Bug 200652
Macbook does not return from suspend
Last modified: 2015-03-04 20:17:23 EST
Description of problem:
The macbook does not resume from suspend when the lid is closed or the command
echo 'mem' > /sys/power/state
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. echo 'mem' > /sys/power/state
3. open lid, press buttons
System to kick back into life
Screen remains black.
Additional information as it comes. I might try and work this bug..
Nearly every laptop needs some sort of workaround on resume. Echo'ing stuff into
sysfs isn't going to make those workarounds happen. You should be using
If it resumes, but the screen remains off, but for eg capslock toggles the LED,
then it's usually a missing tweak to pm-utils.
If on resume the machine doesn't even respond to capslock however, it's a kernel
Ok, machine responds to capslock.
ok, then it's likely some video reinitialisation magic missing from pm-utils.
*** Bug 199995 has been marked as a duplicate of this bug. ***
the screen goes blank, i see a flashing cursor in the top right.
The light on the front of the macbook pulsates gently (this is sounding graphic
I press the power key, i hear the dvd-rom flick into life, the backlight comes on.
Pressing the caps lock key, no light comes on or off.
Each time pm-suspend has been used, I have been able to reproduce:
And.. now it suspends ! yay!
Linux localhost.localdomain 2.6.17-1.2505.fc6 #1 SMP Tue Aug 1 19:52:56 EDT 2006
i686 i686 i386 GNU/Linux
But does it unsuspend? :)
Going to suspend..
Suspended (networkmanager didnt auto reconnect to network...)
Resumed.. (I'm typing on it now )
pm-suspend manually.. it suspends and returns
Wait 15 minutes on battery.. it suspends and returns
Although... (queue dramatic music),
It seems IRQ #9 gets disabled, which means acpi events no longer work after suspend.
That would explain a lot. My machine has started suspending and resuming (yay!)
but after it does, a lot of things don't work. Closing the lid won't suspend
the laptop. gnome-power-manager also acts weirdly. One step at a time.
Think we should open a new bug since at least we're returning from a suspend?
Yes, will do so now.