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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


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Old 06-24-2004, 10:05 AM   #1
Registered: Apr 2004
Distribution: Slackware 9.1/10.1, Mandrake 9.1/10.1
Posts: 75

Rep: Reputation: 15
External USB DVD combo drive keep ejecting by itself


Recently I got a old external slim USB Combo drive from my friend, I plug it into my notebook's USB port and run dmesg:

scsi2 : SCSI emulation for USB Mass Storage devices
  Vendor: TOSHIBA   Model: DVD-ROM SD-R2002  Rev: 1F26
  Type:   CD-ROM                             ANSI SCSI revision: 02
Attached scsi generic sg1 at scsi2, channel 0, id 0, lun 0,  type 5
USB Mass Storage device found at 2
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
Then I put a CD into the tray and try to mount it with "mount /dev/sr0 /mnt/cdrom2", the led will light up a few seconds then the tray will eject by itself.... if I push the tray back fast enough, it will continue to mount the driver, and I can list the files with "ls"...

However when I do a "ls -lR", it will list a few screens of files, then the tray will eject by itself again....

Then I try to use "cp -a /mnt/cdrom2 /xxx" to copy the whole CD to harddisk, also try "dd if=/dev/sr0 of=xxx", the operation will run for fews seconds, then the tray will eject automatically again....

It seems that it's ok when I do some "light" access to the drive, but the tray will eject when I do some "heavy" access.

The drive itself is ok as it run fine under... well WinXP. Just want to know if someone encountered this kind of problem under linux, and are there any solutions... thanks.

My lsmod for reference:

Module Size Used by
nls_iso8859_1 4096 0
isofs 23172 0
sr_mod 14240 0
usb_storage 32000 1
snd_pcm_oss 48772 0
snd_mixer_oss 17664 1 snd_pcm_oss
snd_emu10k1 93060 0
snd_rawmidi 20736 1 snd_emu10k1
snd_pcm 87552 2 snd_pcm_oss,snd_emu10k1
snd_timer 22528 1 snd_pcm
snd_seq_device 6660 2 snd_emu10k1,snd_rawmidi
snd_ac97_codec 61572 1 snd_emu10k1
snd_page_alloc 9092 2 snd_emu10k1,snd_pcm
snd_util_mem 3584 1 snd_emu10k1
snd_hwdep 7552 1 snd_emu10k1
snd 46724 10 snd_pcm_oss,snd_mixer_oss,snd_emu10k1,snd_rawmidi,snd_pcm,snd_timer,snd_seq_device,snd_ac97_codec,sn d_util_mem,snd_hwdep
usbhid 23936 0
uhci_hcd 28936 0
ehci_hcd 27520 0
8139too 21632 0
crc32 4224 1 8139too
intel_agp 16024 1
agpgart 27852 1 intel_agp
button 5144 0
nls_cp950 104064 10
ext3 114024 1
jbd 61720 1 ext3
mbcache 8068 1 ext3


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