Messages in this thread | | | Subject | Problem mounting dvd if the drive spin down | From | Nate Grey <> | Date | Sat, 02 Apr 2005 18:33:56 +0200 |
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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.
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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