Public bug reported:

The dvb stick identified as af9015 in kernel log (or af9013 in kaffeine)
regulary fails to be detected at system startup and need to be
unplugged/replugged.

Log :

kernel: [    4.458135] af9015: recv bulk message failed:-110
kernel: [    4.458138] af9015: eeprom read failed:-1
kernel: [    4.458146] dvb_usb_af9015: probe of 1-1.3:1.0 failed with error -1

After : replug :

kernel: [  262.596415] usb 1-1.3: USB disconnect, device number 3
kernel: [  264.620038] usb 1-1.3: new high-speed USB device number 6 using 
ehci_hcd
kernel: [  264.717963] af9015: command failed:170
kernel: [  265.081985] dvb-usb: found a 'AVerMedia AVerTV DVB-T Volar X' in 
cold state, will try to load a firmware
kernel: [  265.084535] dvb-usb: downloading firmware from file 
'dvb-usb-af9015.fw'
kernel: [  265.152971] dvb-usb: found a 'AVerMedia AVerTV DVB-T Volar X' in 
warm state.
kernel: [  265.153038] dvb-usb: will pass the complete MPEG2 transport stream 
to the software demuxer.
kernel: [  265.153435] DVB: registering new adapter (AVerMedia AVerTV DVB-T 
Volar X)
kernel: [  265.157163] af9013: firmware version:4.95.0.0
kernel: [  265.163037] DVB: registering adapter 0 frontend 0 (Afatech AF9013 
DVB-T)...
kernel: [  265.164757] MXL5005S: Attached at address 0xc6
kernel: [  265.187937] Registered IR keymap rc-avermedia-m135a
kernel: [  265.188048] input: IR-receiver inside an USB DVB receiver as 
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/rc/rc0/input12
kernel: [  265.188170] rc0: IR-receiver inside an USB DVB receiver as 
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/rc/rc0
kernel: [  265.188176] dvb-usb: schedule remote query interval to 500 msecs.
kernel: [  265.188180] dvb-usb: AVerMedia AVerTV DVB-T Volar X successfully 
initialized and connected.
kernel: [  265.201289] input: AVerMedia A815 as 
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1/input/input13

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-firmware-nonfree 1.11
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Sat May 12 10:03:23 2012
Dependencies:
 
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-firmware-nonfree
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-firmware-nonfree (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/998360

Title:
  af9015: random detection issue

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