A web search led me to discover that the firmware provided with ubuntu is out of date, despite the fact that the most recent was released in 2010 :
$ md5sum /lib/firmware/dvb-usb-af9015.fw dccbc92c9168cc629a88b34ee67ede7b /lib/firmware/dvb-usb-af9015.fw $ md5sum dvb-usb-af9015* dccbc92c9168cc629a88b34ee67ede7b dvb-usb-af9015(1).fw 4e0e7d65ab961d02fe5d5625c0393d47 dvb-usb-af9015(2).fw f6c1dfb5c2c890b438771918d66ee2be dvb-usb-af9015(3).fw 532b8e1eabd3b4e9f8ca084b767e4470 dvb-usb-af9015(4).fw 5c2da8881b8be5161c7db8ef94711cf5 dvb-usb-af9015.fw ==> Most recent from http://palosaari.fi/linux/v4l-dvb/firmware/af9015// Just replaced it and crossing fingers. I'll wait to check if it solves the issue before trying the (non downgradable) bios update. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/998360 Title: af9015: random detection issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/998360/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs