I'm having the hardest time getting my scanner to work under Linux using SANE (that's about the most inapproprate name I've seen given to something oin a long time!)

If I run sane-find-scanner, it gives me this (as either root or a user):

found USB scanner (vendor=0x04a9 [Canon], product=0x2206 [CanoScan], chip=LM9832/3) at libusb:004:008

It gives me that every time (the USB location changes if I replug, but that's not really relevent to this problem).

However, here's the fun part: The scanner only responses correctly to the very first query or instruction that it receives. For example, I go to a console directly after booting up (not running anything that would look for or use the scanner) and type 'scanimage -L', I'll get something like this: (this happens for both root and a normal user)

device `plustek:libusb:004:008' is a Canon N650U/N656U USB flatbed scanner

However, it I immediately run it again this is what I get:

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

Likewise, if you open xsane before running anything else, it will load up and when you tell it to scan, it will say that it had an I/O error. I close xsane and try to load it up again, and it complains that you don't have a scanner and closes the program.

This also holds true for scandrake. The first time you run it, it will find your scanner (assuming you haven't run scanimage or xsane or anything else that touches the scanner), but if you run it again, it won't find a scanner.

I know I had this scanner working under Linux before, but that was a while back. I've had thisproblem with both Mandrive Limited Edition 2005 and Mandriva 2006.

I really don't want to have to dual-boot to run my scanner. Especially if it supported by SANE (which it is under the Plustek driver.)

Here's the dmesg output I get when I replug the device:

usb 4-1.4: USB disconnect, address 8
usb 4-1.4: new full speed USB device using ehci_hcd and address 9

Here is my /proc/bus/usb/devices (just the scanner info)
T: Bus=04 Lev=02 Prnt=02 Port=03 Cnt=01 Dev#= 9 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=04a9 ProdID=2206 Rev= 1.00
S: Manufacturer=Canon
S: Product=CanoScan
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=ff Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=16ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms

It is plugged into this hub:
T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 4
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=05e3 ProdID=0605 Rev= 6.0b
S: Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms

And the hub is plugged into this controller:
T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 6
B: Alloc= 0/800 us ( 0%), #Int= 1, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.12-12mdk ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=0000:00:10.3
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms

And here is my lsmod:
Module Size Used by
sg 34044 0
sr_mod 15428 0
raw 6592 1
md5 3584 1
ipv6 234016 12
vmnet 25988 5
vmmon 171596 7
snd_seq_dummy 2532 0
snd_seq_oss 31136 0
snd_seq_midi_event 5696 1 snd_seq_oss
snd_seq 46960 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 48960 0
snd_mixer_oss 16896 2 snd_pcm_oss
snd_emu10k1 116516 3
snd_rawmidi 19616 1 snd_emu10k1
snd_seq_device 6828 5 snd_seq_dummy,snd_seq_oss,snd_seq,snd_emu10k1,snd_rawmidi
snd_ac97_codec 83900 1 snd_emu10k1
snd_pcm 79784 4 snd_pcm_oss,snd_emu10k1,snd_ac97_codec
snd_timer 20548 3 snd_seq,snd_emu10k1,snd_pcm
snd_page_alloc 8392 2 snd_emu10k1,snd_pcm
snd_util_mem 3232 1 snd_emu10k1
snd_hwdep 6848 1 snd_emu10k1
snd 46116 14 snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_emu10k1,snd_rawmidi,snd_seq_device,snd_ac97_codec, snd_pcm,snd_timer,snd_hwdep
soundcore 7008 2 snd
via_rhine 19588 0
mii 4704 1 via_rhine
af_packet 16392 2
floppy 55444 1
video 14052 0
thermal 10920 0
tc1100_wmi 5092 0
processor 17876 1 thermal
fan 3172 0
container 3008 0
button 4848 0
battery 7460 0
ac 3268 0
ide_cd 37988 2
loop 14504 0
nls_cp850 4480 3
vfat 10592 3
fat 45980 1 vfat
nls_iso8859_1 3680 5
ntfs 212792 2
supermount 31956 1
via_agp 7584 1
nvidia 3694056 20
agpgart 29032 2 via_agp,nvidia
tsdev 5984 0
usbmouse 4160 0
usbhid 44544 0
usblp 10976 0
ehci_hcd 29192 0
uhci_hcd 29136 0
usbcore 108348 6 usbmouse,usbhid,usblp,ehci_hcd,uhci_hcd
evdev 7648 0
ext3 124744 3
jbd 48568 1 ext3
sd_mod 16112 9
3w_xxxx 26144 7
scsi_mod 120808 4 sg,sr_mod,sd_mod,3w_xxxx
dm_snapshot 16092 0
dm_zero 1408 0
dm_mirror 19188 0
dm_mod 51612 7 dm_snapshot,dm_zero,dm_mirror

Sorry, I really didn't mean to make such a huge post, but I wanted to include as much information as I possibly could so as to have a better chance of somebody being able to help me resolve my issue.

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