Nate Grey <[email protected]> wrote:
>
> Hello guys, this is my first post in this list, I'm not a subscriner so
> please CC me for reply and comments. Thank you.
>
>
> I've got an Acer Aspire 1601LC laptop and I get strange issue when
> mounting dvd (I cannot say the time 'cause firstly I thought to bad
> dvd).
> If I close the try and then mount the dvd everything is ok, but if the
> drive stops, for example if I insert the dvd and go on with reading my
> mail and try to access again the dvd this hangs up.
Did it work OK under any other kernel versions? If so, which?
> The drive is a Matshita as dmesg say:
>
> hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
>
> Example:
> I put the dvd into the drive, wait some time... the drive spin down
> $ mount /mnt/cdrom
>
> I got this in /var/log/messages
> Apr 2 18:11:58 maggot kernel: hdc: DMA disabled
>
> and dmesg:
> hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
> hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
> ide: failed opcode was: unknown
>
> I'm using 2.6.11 kernel, but 2.6.10 wasn't better.
> I notice that if I run
>
> $ hdparm -Y /dec/hdc
>
> output:/dev/hdc:
> issuing sleep command
> HDIO_DRIVE_CMD(sleep) failed: Input/output error
>
> the drive seems to wake up and I can run mount without problems.
>
> This is the output from hdparm -i:/dev/hdc:
>
> Model=UJDA740 DVD/CDRW, FwRev=1.00, SerialNo=
> Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
> RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
> BuffType=unknown, BuffSize=512kB, MaxMultSect=0
> (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
> IORDY=yes, tPIO={min:180,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes: pio0 pio1 pio2 pio3 pio4
> DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
> UDMA modes: udma0 udma1 *udma2
> AdvancedPM=no
> Drive conforms to: ATA/ATAPI-5 T13 1321D revision 3:
>
> * signifies the current active mode
>
>
> Is there any solution to this problem?
>
> Thank in advance, and go on this way.
>
>
>
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