are your ata2 disk failing ?
19.633591] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 19.633593] sd 1:0:0:0: [sdb]
[ 19.633595] Sense Key : Medium Error [current] [descriptor]
[ 19.633598] Descriptor sense data with sense descriptors (in hex):
[ 19.633600] 72 03 11 04 00
Here is the output of aplay -l
*** List of PLAYBACK Hardware Devices
Opened target file /tmp/pulseverbose.log.45
card 0: PCH [HDA Intel PCH], device 0: ALC271X Analog [ALC271X Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
