[Dvd] upgrade alla 9.04 non vede il DVD

[enzoeb]

Ciao,
ho eseguito l'aggiornamento dalla 8.10 alla 9.04 jantry. per ora sembra che tutto funzioni, ma ho perso la visibilità del DVD !!

il messages :
May 10 17:52:35 home kernel: [    2.216017] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
May 10 17:52:35 home kernel: [    2.227524] ata2.00: ATAPI: PIONEER DVD-RW  DVRTD08, 1.00, max UDMA/33
May 10 17:52:35 home kernel: [    7.224009] ata2.00: qc timeout (cmd 0xef)
May 10 17:52:35 home kernel: [    7.544017] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
May 10 17:52:35 home kernel: [  17.552006] ata2.00: qc timeout (cmd 0xef)
May 10 17:52:35 home kernel: [  17.552061] ata2: limiting SATA link speed to 1.5 Gbps
May 10 17:52:35 home kernel: [  17.552063] ata2.00: limiting speed to UDMA/33:PIO3
May 10 17:52:35 home kernel: [  17.872016] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
May 10 17:52:35 home kernel: [  27.880010] ata2.00: qc timeout (cmd 0xef)
May 10 17:52:35 home kernel: [  27.880063] ata2.00: disabled
May 10 17:52:35 home kernel: [  27.896008] ata2: hard resetting link
May 10 17:52:35 home kernel: [  28.216016] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
May 10 17:52:35 home kernel: [  28.216020] ata2: EH complete


in /dev non esiste nulla che possa essere un cd o dvd !!

ho un sony vgn-ns21z.
qualche idea ??
grazie

[enzoeb]

girando su internet ho trovato una risposta:
PIONEER DVD-RW DVRTD08 is disabled if there is no disc present at boot time

ho provato a partire con un cd qualsiasi inserito e funziona.
.. in attesa di un fix...
grazie