Hey Allan, Since a some weeks I attempt find Henning because the problem above, without success. You can help-me? Or this is a work for Henning only?
I can make more tests and help you (or Henning) to solve the problem, but alone is very difficult. I velieve this is a little bug. Thanks. Renato Barbosa Santiago On Sun, 24 Feb 2008 14:21:05 -0300 Renato <rbsanti at bol.com.br> wrote: > Hello Henning, > > I have some problems with my scanner Genius ColorPage-Vivid 3XE and your > backend gt68xx. In first time, I accompany the evolution of your backend > since years ago, and is a well done work. Congratulations!!! > > Now, about my problems: The colors is wrong! > > Seemingly, the problem is in the calibration process. When I use the scanner > in first time (after some time off), the calibration works fine and the image > have a good aspect. If SANE don't calibrate scanner again, others scans works > fine. > > But, after some time in use, if SANE do a new calibration, the colors in > image are wrong, in some cases violet, in others bluely. > > Seemingly, the problem occurs in dark parts of image. White seem always > correct. > > In Windows, with de original driver, the scanner works fine. > > I'm using: > SANE 1.0.18 > gt68xx 1.0-84 > xsane 0.995 > > All compiled by me. > > My GNU/Linux is a Debian 4 (Etch) > > Above, the log of a scan with colors wrong. > > The process gt68xx_afe_ccd_calc (calibration?) is very slow, in comparisson > with the original driver. > > rbs at quarto:/$ xsane > [sanei_debug] Setting debug level of gt68xx to 3. > [gt68xx] SANE GT68xx backend version 1.0 build 84 from sane-backends 1.0.18 > [gt68xx] attach: found Genius flatbed scanner Colorpage Vivid3xe at > libusb:001:0 > 09 > [gt68xx] sane_init: can't set afe values #I attempt place a afe settings in > gt68xx, without perceptible effect > [gt68xx] get_id: vendor id=0x0458, product id=0x2017, DID=0x00000009, > FID=0xB8B7 > [gt68xx] sane_get_parameters: pixels 2575x3531x256 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] Please wait for lamp warm-up > [gt68xx] gt68xx_wait_lamp_stable: Lamp is stable after 8 secs (13 secs total) > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 32 min_black 0 > max_black > 0 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 142 min_black 122 > max_black > 123 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 137 min_black 112 > max_black > 114 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 143 min_black 121 > max_black > 122 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 138 min_black 110 > max_black > 111 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 145 min_black 119 > max_black > 121 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 136 min_black 113 > max_black > 114 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 147 min_black 119 > max_black > 121 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 137 min_black 111 > max_black > 112 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 138 min_black 109 > max_black > 110 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 142 min_black 122 > max_black > 123 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 143 min_black 121 > max_black > 122 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 145 min_black 120 > max_black > 121 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 147 min_black 118 > max_black > 120 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 137 min_black 113 > max_black > 114 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 138 min_black 111 > max_black > 112 > [gt68xx] gt68xx_afe_ccd_calc: WARNING: max_white 138 min_black 109 > max_black > 110 > [gt68xx] afe 0x1f 0x86 0x1f 0x72 0x21 0x8a > [gt68xx] exposure 0x157 0x157 0x157 > [gt68xx] sane_get_parameters: pixels 644x883x256 > [gt68xx] sane_cancel: scan finished, scanned 1705956 bytes in 123 seconds > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > [gt68xx] sane_get_parameters: pixels 1283x1761x65536 > > > Thanks. > > Renato Barbosa Santiago > rbsanti at quartzo.net > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org
