sorry, i dont know anything about the Grandtech/Sunplus chips or scanners that use them. that seems to be henning's specialty, but he is very busy lately. perhaps someone else will have some idea, or the data sheets for these machines,,,
allan On Sun, Feb 24, 2008 at 4:02 PM, Renato <rbsanti at bol.com.br> wrote: > 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 > > -- > 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 > -- "The truth is an offense, but not a sin"
