On Wed, Sep 01, 2010 at 07:49:52PM +0800, Ike Panhc wrote: > Your log tells a lot. It tells me if the bluetooth init failed. Then we > have to turning off and power on again by hw switch to make it alive again. > > So, I believe we have two issue here. > * when rfkill unblock, sometimes bluetooth init failed. Yes. > * power up system after rfkill block bluetooth, sometimes the cfgbit = 0xc0000 > Am I correct? Not completely. * reboot system after rfkill block bluetooth, sometimes the cfgbit = 0xc0000 I never had cfgbit = 0xc0000 when I power-cycled the system, only when I rebooted it. This is why I belive the second point has virtually the same reason as the first point: bluetooth device initialization fails and thus its detection by BIOS fails and thus ACPI returns 0xc0000 cfg. Hence, I belive chances are high that solving the first point does also solve the second. While thinking about it... the init problems persisting a reboot could also mean that not the unblock operation is the real issue but the block operation - which probably leaves the bluetooth device in kind of a semi-disabled state or something like that. regards Mario -- Do I contradict myself? Very well, then I contradict myself, I am large, I contain multitudes. -- Walt Whitman
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