[sane-devel] Benq 5000 (Freebsd) works form time to time

[m. allan noah]

Check the system logs, and see if you get any hints about USB
problems. If so, ask on some freebsd forums?

allan

On Fri, Jun 3, 2011 at 8:16 AM, Oleg <xammep at mail.ru> wrote:
> Hi, allan! Thanks for your reply.
> Under slax live cd (6.1.2) and sane 1.0.20 my scanner works fine all the time, no errors.
>
> Under Windows 7 it works fine too.
>
> So we have FreeBSD issue.
> Any idea to fix the problem (except not to use FreeBSD :)) ?
>
> --
> Oleg
>
>
> Thu, 2 Jun 2011 20:31:24 -0400 письмо от "m. allan noah" <kitno455 at gmail.com>:
>
>> It might be interesting to boot a linux livecd, and try the scanner
>> there, just to see if it is an OS issue or a hardware issue.
>>
>> allan
>>
>> On Thu, Jun 2, 2011 at 7:00 PM, Олег <xammep at mail.ru> wrote:
>> > Hi all!
>> >
>> > I use:
>> > Benq 5000
>> > sane-backends-1.0.21
>> > FreeBSD 7.4-STABLE
>> > 'firmware /home/user/ftp/20F8V119.bin' in snapscan.conf
>> >
>> > The problem is scanner works unstable (from time to time). It takes multiple
>> > attepts of 'scanimage > file.ppm' to get the scan.
>> > All my actions have been tested in 2 cases:
>> > 1. with libusb (kernel without 'device uscanner')
>> > 2. with uscanner:
>> > (echo 'product ACERP ACERSCAN_5000 0x20f8 Benq 5000' >>
>> > /usr/src/sys/dev/usb/usbdevs
>> > echo '{{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_5000 }, 0 },' >>
>> > /usr/src/sys/dev/usb/uscanner.c
>> > recompiled kernel with 'device uscanner')
>> >
>> > Case1:
>> > Benq 5000 powered on first time:
>> >
>> > # lsusb
>> > Bus /dev/usb2 Device /dev/ugen0: ID 04a5:20f8 Acer Peripherals Inc. (now
>> > BenQ Corp.) Benq 5000
>> >
>> > sane-find-scanner found the scanner on the fourth attempt:
>> >
>> > # sane-find-scanner -q
>> > # sane-find-scanner -q
>> > # sane-find-scanner -q
>> > # sane-find-scanner -q
>> > found USB scanner (vendor=0x04a5 [Color], product=0x20f8 [ FlatbedScanner
>> > 22]) at libusb:/dev/usb2:/dev/ugen0
>> >
>> > and scanimage found it on third attempt:
>> >
>> > # scanimage -L
>> >
>> > No scanners were identified. ....
>> > .
>> > .
>> > .
>> > # scanimage -L
>> > device `snapscan:libusb:/dev/usb2:/dev/ugen0' is a Acer FlatbedScanner42
>> > flatbed scanner
>> >
>> > after 6 attempts of:
>> > # scanimage --quality-cal=no > image-7.ppm
>> > scanimage: no SANE devices found
>> >
>> > we got the scan:
>> > # scanimage --quality-cal=no > image-7.ppm
>> > #
>> >
>> > and next:
>> > # scanimage -L
>> >
>> > No scanners were identified.....
>> >
>> > And i have to wait several minutes getting this errors to get the next scan.
>> >
>> > Case2:
>> > Benq 5000 powered on first time it is found by sane-find-scanner and
>> > scanimage successfully:
>> >
>> > # sane-find-scanner -q
>> > found USB scanner (vendor=0x04a5, product=0x20f8) at /dev/uscanner0
>> >
>> > # scanimage -L
>> > device `snapscan:/dev/uscanner0' is a Acer FlatbedScanner22 flatbed scanner
>> >
>> > # scanimage --quality-cal=no > image-1.ppm
>> > [snapscan] Scanner warming up - waiting 31 seconds.
>> > #
>> >
>> > OK. We got the scan.
>> > After 3 minutes:
>> >
>> > # scanimage --quality-cal=no > image-2.ppm
>> >
>> > hangs forever...
>> >
>> > If i kill scanimage and use sane-find-scanner:
>> > # sane-find-scanner -q
>> > # sane-find-scanner -q
>> > .
>> > .
>> > .
>> > i have nothing.
>> >
>> > I've tried changing firmware to 20F8V116.bin, 20F8V114.bin, 20F8V112.bin -
>> > the problem repeats.
>> > What is the root of this instability?
>> > Thanks for your time!
>> >
>> >
>> > --
>> > sane-devel mailing list: sane-devel at lists.alioth.debian.org
>> > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel
>> > Unsubscribe: Send mail with subject "unsubscribe your_password"
>> >             to sane-devel-request at lists.alioth.debian.org
>> >
>>
>>
>>
>> --
>> "The truth is an offense, but not a sin"
>



-- 
"The truth is an offense, but not a sin"