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scomparso lettore dvd e boot lento

Inviato: martedì 17 agosto 2010, 18:44
da il-mArCi0
ciao a tutti
da un paio di giorni l'avvio di ubuntu è rallentato drasticamente e una volta partito non mi riconosce più il masterizzatore dvd.
togliendo l'opzione splash dal boot ho notato il ripetersi di questo errore:
Exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen

allora sono andato a cercare maggiori info con

Codice: Seleziona tutto

silvio@aspire:~$ dmesg | grep ata
[    0.000000]  BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data)
[   15.749522] Memory: 1027496k/1048512k available (2017k kernel code, 20344k reserved, 918k data, 364k init, 131008k highmem)
[   15.749538]       .data : 0xc02f8506 - 0xc03dde84   ( 918 kB)
[   17.553283] Write protecting the kernel read-only data: 726k
[   18.579616] libata version 2.21 loaded.
[   19.036418] ata_piix 0000:00:1f.1: version 2.11
[   19.036549] scsi0 : ata_piix
[   19.036621] scsi1 : ata_piix
[   19.036777] ata1: PATA max UDMA/100 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14
[   19.036782] ata2: PATA max UDMA/100 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15
[   19.628339] ata1.00: ATAPI: PHILIPS SPD2412T, P1.4, max UDMA/33
[   19.628345] ata1.01: ATAPI: LITE-ON DVDRW SOHW-1633S, BRS6, max UDMA/66
[   19.799916] ata1.00: configured for UDMA/33
[   19.971497] ata1.01: configured for UDMA/66
[   25.621393] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[   25.621436] ata1.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
[   30.649014] ata1: port is slow to respond, please be patient (Status 0xd0)
[   35.620793] ata1: device not ready (errno=-16), forcing hardreset
[   35.620797] ata1: soft resetting port
[   36.387155] ata1.00: configured for UDMA/33
[   36.558733] ata1.01: configured for UDMA/66
[   36.558746] ata1: EH complete
[   42.045029] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[   42.045071] ata1.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
[   47.072653] ata1: port is slow to respond, please be patient (Status 0xd0)
[   52.044435] ata1: device not ready (errno=-16), forcing hardreset
[   52.044439] ata1: soft resetting port
[   52.810797] ata1.00: configured for UDMA/33
[   52.982378] ata1.01: configured for UDMA/66
[   52.982390] ata1: EH complete
[   58.468668] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[   58.468710] ata1.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in
[   63.496293] ata1: port is slow to respond, please be patient (Status 0xd0)
[   68.468080] ata1: device not ready (errno=-16), forcing hardreset
[   68.468084] ata1: soft resetting port
[   69.234437] ata1.00: configured for UDMA/33
[   69.406016] ata1.01: configured for UDMA/66
[   69.406027] ata1: EH complete
[   74.892315] ata1.00: limiting speed to UDMA/25:PIO4
ho cercato la soluzione sul ubuntuforums ma non ho trovato nessuna soluzione.
qualcuno può aiutarmi?

p.s.
naturalmente se scollego il lettore dvd tutto funziona a dovere

p.p.s
con windows non ho nessun problema