Re: S2RAM broken on HP 8530p
From: Parag Warudkar
Date: Thu Apr 01 2010 - 18:18:23 EST
On Thu, 1 Apr 2010, Rafael J. Wysocki wrote:
> On Thursday 01 April 2010, Parag Warudkar wrote:
> > On Thu, 1 Apr 2010, Rafael J. Wysocki wrote:
> > > Please try:
> > >
> > > # echo devices > /sys/power/pm_test
> > > # echo mem > /sys/power/state
> > >
> > > and see if that breaks too (it should get back to the command line in about
> > > 5-10 seconds).
> > That breaks too - hangs similarly during suspend. I enabled RTC tracing
> > and every time it prints out different hash matches after reboot -
> > tty/tty21, pcie04 and latest is
> > [ 0.865296] pcieport 0000:00:1c.1: hash matches
> > Also when the suspend fails the immediate boot after that I get a USB
> > error on startup - unable to enumerate usb device on port 1. This error is
> > not present on normal boots.
> Well, try the above with the USB controller drivers unloaded.
Turns out its not the controller drivers but btusb and friends. Once I
removed btusb,sco,bnep,l2cap and family I was able to suspend resume just
For now I have disabled Bluetooth in BIOS as I don't need it - it is
likely that it was disabled earlier and so the suspend/resume was
working but looks like after a BIOS update/reset I left it enabled.
So this does not seem to be a regression to me.
But may be it should be possible to suspend/resume with bluetooth enabled?
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