USB digital camera erroneously says "no medium found"

[Karel Kulhavy <clock@twibright.com>]

Hello

I have Nikon Coolpix 2000 digital camera which was working well on my
old Linux 2.6.? machine. After moving to a different one while the old
one is not accessible, where the new one has Linux version 2.6.13, I
found it doesn't work anymore. When compact flash is inside the camera,
camera turned on and connected, cat /dev/sda says no media found.  cat
/dev/sdb, /dev/sdc, /dev/sdd say no such file or directory.

If I take the compact flash card out and stick it into "roline 8in1 card
reader", it works perfectly. This reader puts the cards also as SCSI
disks on /dev/sda.../dev/sdd. Attaching the camera with CF inside to
Windows 2000 machine also works perfectly.

dmesg:

usb-storage: waiting for device to settle before scanning
  Vendor: NIKON     Model: DSC E2000         Rev: 1.00
  Type:   Direct-Access                      ANSI SCSI revision: 02
SCSI device sda: 507905 512-byte hdwr sectors (260 MB)
sda: Write Protect is off
sda: Mode Sense: 04 00 00 00
sda: assuming drive cache: write through
SCSI device sda: 507905 512-byte hdwr sectors (260 MB)
sda: Write Protect is off
sda: Mode Sense: 04 00 00 00
sda: assuming drive cache: write through
 sda: sda1
Attached scsi removable disk sda at scsi4, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi4, channel 0, id 0, lun 0,  type 0
usb-storage: device scan complete

clock@kestrel:~$ /sbin/lspci | grep USB
0000:00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
0000:00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
0000:00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
0000:00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M)
USB2 EHCI Controller (rev 01)

What should I investigate and send to diagnose the problem?

CL<