Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [linux-pm] "i8042: Can't reactivate AUX port" after s2ram on 3.4-rc2 | Date | Fri, 13 Apr 2012 21:18:21 +0200 |
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On Friday, April 13, 2012, Mikko Vinni wrote: > Bug report: > https://bugzilla.kernel.org/show_bug.cgi?id=43099 > > Briefly: > > After s2ram the touchpad on a HP dv5 laptop doesn't work anymore. > > dmesg contains this about the touchpad > Apr 11 18:00:05 koni kernel: i8042: Can't write CTR while closing AUX port > Apr 11 18:00:08 koni kernel: i8042: Can't reactivate AUX port > > > Full log in bugzilla with PCI and i8042 debug turned on. > > Bisected to: > > commit 26f41062f28de65e11d3cf353e52d0be73442be1 > Author: Kay, Allen M <allen.m.kay@intel.com> > Date: Thu Jan 26 10:25:53 2012 -0800 > > PCI: check for pci bar restore completion and retry > > On some OEM systems, pci_restore_state() is called while FLR has not yet > completed. As a result, PCI BAR register restore is not successful. This fix > reads back the restored value and compares it with saved value and re-tries 10 > times before giving up.
Does reverting the above commit on top of the current Linus' tree fix the problem for you?
Rafael
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