On 10/25/2011 07:43 PM, Oliver Neukum wrote: > Am Dienstag, 25. Oktober 2011, 13:20:13 schrieb Jesse Sung: >> On 10/25/2011 04:40 PM, Oliver Neukum wrote: >>> Am Dienstag, 25. Oktober 2011, 10:37:38 schrieb Jesse Sung: >>>> >>>> On some machines, it seems that usb hubs do not get power while >>>> being suspended. We can get something like this in dmesg: >>>> usb usb2: root hub lost power or was reset >>>> >>>> When this is the case, .reset_resume is called instead of .resume. >>>> If .reset_resume is not set, bluetooth modules would stay in an unusable >>>> state because the resume function is not called. >>> >>> Have you experimentally verified that? This state of affairs is years >>> old and should result in a virtual unplug/replug cycle. What are you >>> seeing? >> >> Hi Oliver, >> >> Humm... You're right, there is an unplug-replug cycle, but bluetooth >> doesn't work until I restart bluetoothd. If the resume function is >> called through .reset_resume, then bluetooth works right after resume. > > Hi > > Yes, but we fail to indicate to user space that connections may have been > dropped. I doubt we can simply pretend the loss of power hasn't occured. > Have you tested what happens if you go to S3 while eg. a file is transfered > or audio played with your patch?
Hi Oliver, Indeed, loss of power event should not be ignored. Just tested file transferring. If there's no active connection, everything goes fine. But if a file is transferring while going to S3, bluetooth is not working after resume. Use applet to disable and re-enable bluetooth makes it work again... Wondering what is the right way to handle loss of power... Regards, Jesse -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/812132 Title: [Asus 1215p] bluetooth is not enabled after come back from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/812132/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
