Messages in this thread | | | Date | Thu, 1 Apr 2010 18:18:07 -0400 (EDT) | From | Parag Warudkar <> | Subject | Re: S2RAM broken on HP 8530p |
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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 like before.
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? :)
Thanks, Parag
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