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Subject:
Scrambled image with Plustek 4813P using more than 100 dpi
From: ####@####.#### Date: 28 Dec 2002 15:51:41 -0000 Message-Id: <13347.1041090233@www33.gmx.net> Hello, I have problems using a scanner "Plustek OpticPro 4831P". If I use resolutions above 100 dpi (f.e. 200 dpi) horizontal regions of the image are scrambled. If I try to scan the maximum possible size (A4, 200 dpi) the scanner produces an awful noise. With resolutions <= 100 dpi the driver works correctly. My configuration: Plustek driver: Version 0.44 - Build 10 (17.10.2002) for SANE 1.0.8 and higher SuSE 8.1 with SANE 1.0.8. HP Laserjet 6L and scanner connected to parallel port. Yours sincerely Johannes Hennecke -- +++ GMX - Mail, Messaging & more http://www.gmx.net +++ NEU: Mit GMX ins Internet. Rund um die Uhr für 1 ct/ Min. surfen! | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: Scrambled image with Plustek 4813P using more than 100 dpi
From: Gerhard Jaeger ####@####.#### Date: 7 Jan 2003 07:54:57 -0000 Message-Id: <200301070848.44189.gerhard@gjaeger.de> Hi, try and remove the HP Laserjet and also make sure not to load ppdev module... Gerhard On Samstag, 28. Dezember 2002 16:43, ####@####.#### wrote: > Hello, > > I have problems using a scanner "Plustek OpticPro 4831P". If I use > resolutions above 100 dpi (f.e. 200 dpi) horizontal regions of the image > are scrambled. If I try to scan the maximum possible size (A4, 200 dpi) the > scanner produces an awful noise. With resolutions <= 100 dpi the driver > works correctly. > > My configuration: > Plustek driver: Version 0.44 - Build 10 (17.10.2002) for SANE 1.0.8 and > higher > SuSE 8.1 with SANE 1.0.8. > HP Laserjet 6L and scanner connected to parallel port. > > Yours sincerely > > Johannes Hennecke | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: Scrambled image with Plustek 4813P using more than 100 dpi
From: Johannes Hennecke ####@####.#### Date: 11 Jan 2003 11:38:55 -0000 Message-Id: <200301111229.48725.j.he_collect@gmx.de> Hello Gerhard, << try and remove the HP Laserjet and also make sure not to load << ppdev module... I remove the printer cable (all devices were switched off before) and started the computer. The module ppdev was not loaded (see list made with "lsmod" below), but images scanned with higher resolution are still scrambled :(. Scanning with higher resolution causes much more date to be transferred over parallel interface. Maybe the data are transferred too fast, so that the data recognition/sending on parallel port does not work correctly and reads/writes corrupted data. Is there a way to modify the plustek driver in that way that the data transfer is slowed down? Best regards Johannes Hennecke linux:/home/johannes # lsmod Module Size Used by Not tainted snd-pcm-oss 44928 0 (autoclean) snd-mixer-oss 12728 1 (autoclean) [snd-pcm-oss] videodev 5600 0 (autoclean) usbserial 18492 0 (autoclean) (unused) parport_pc 25544 1 (autoclean) lp 6656 0 (autoclean) parport 22528 1 (autoclean) [parport_pc lp] snd-seq-oss 27296 0 (autoclean) (unused) snd-seq-midi 4480 0 (unused) snd-seq-midi-event 2920 0 [snd-seq-oss snd-seq-midi] snd-opl3-synth 10436 0 (unused) snd-seq-instr 4816 0 [snd-opl3-synth] ipv6 138964 -1 (autoclean) snd-seq-midi-emul 4784 0 [snd-opl3-synth] snd-seq 37776 2 [snd-seq-oss snd-seq-midi snd-seq-midi-event snd-opl3-synth snd-seq-instr snd-seq-midi-emul] snd-ainstr-fm 1796 0 [snd-opl3-synth] snd-ad1816a 3024 1 snd-opl3-lib 6532 0 [snd-opl3-synth snd-ad1816a] snd-hwdep 4576 0 [snd-opl3-lib] snd-ad1816a-lib 11824 0 [snd-ad1816a] snd-pcm 63328 0 [snd-pcm-oss snd-ad1816a-lib] snd-timer 11524 0 [snd-seq snd-opl3-lib snd-ad1816a-lib snd-pcm] snd-mpu401-uart 3296 0 [snd-ad1816a] snd-rawmidi 13920 0 [snd-seq-midi snd-mpu401-uart] snd-seq-device 4140 0 [snd-seq-oss snd-seq-midi snd-opl3-synth snd-seq snd-opl3-lib snd-rawmidi] snd 31300 0 [snd-pcm-oss snd-mixer-oss snd-seq-oss snd-seq-midi snd-seq-midi-event snd-opl3-synth snd-seq-instr snd-seq-midi-emul snd-seq snd-ad1816a snd-opl3-lib snd-hwdep snd-ad1816a-lib snd-pcm snd-timer snd-mpu401-uart snd-rawmidi snd-seq-device] soundcore 3396 0 [snd] st 26924 0 (autoclean) (unused) sr_mod 13432 0 (autoclean) cdrom 26400 0 (autoclean) [sr_mod] sg 27904 0 (autoclean) joydev 5600 0 (unused) evdev 4352 0 (unused) input 3168 0 [joydev evdev] usb-uhci 21612 0 (unused) usbcore 56768 1 [usbserial snd usb-uhci] hisax 470500 4 isdn 123584 6 [hisax] slhc 5040 1 [isdn] isa-pnp 29664 0 [snd-ad1816a hisax] nls_iso8859-15 3324 3 (autoclean) nls_cp437 4316 3 (autoclean) vfat 9620 3 (autoclean) fat 30584 0 (autoclean) [vfat] lvm-mod 62976 0 (autoclean) ide-scsi 7920 0 reiserfs 179536 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: Scrambled image with Plustek 4813P using more than 100 dpi
From: "Jaeger, Gerhard" ####@####.#### Date: 11 Jan 2003 11:47:15 -0000 Message-Id: <18XJyZ-0WBoy8C@fmrl06.sul.t-online.com> Hi Johannes, you might try the switch slowIO... Gerhard On Saturday, 11. January 2003 12:29, Johannes Hennecke wrote: > Hello Gerhard, > > << try and remove the HP Laserjet and also make sure not to load > << ppdev module... > > I remove the printer cable (all devices were switched off before) and > started the computer. The module ppdev was not loaded (see list made with > "lsmod" below), but images scanned with higher resolution are still > scrambled :(. > > Scanning with higher resolution causes much more date to be transferred > over parallel interface. Maybe the data are transferred too fast, so that > the data recognition/sending on parallel port does not work correctly and > reads/writes corrupted data. > > Is there a way to modify the plustek driver in that way that the data > transfer is slowed down? > > Best regards > > Johannes Hennecke > > linux:/home/johannes # lsmod > Module Size Used by Not tainted > snd-pcm-oss 44928 0 (autoclean) > snd-mixer-oss 12728 1 (autoclean) [snd-pcm-oss] > videodev 5600 0 (autoclean) > usbserial 18492 0 (autoclean) (unused) > parport_pc 25544 1 (autoclean) > lp 6656 0 (autoclean) > parport 22528 1 (autoclean) [parport_pc lp] > snd-seq-oss 27296 0 (autoclean) (unused) > snd-seq-midi 4480 0 (unused) > snd-seq-midi-event 2920 0 [snd-seq-oss snd-seq-midi] > snd-opl3-synth 10436 0 (unused) > snd-seq-instr 4816 0 [snd-opl3-synth] > ipv6 138964 -1 (autoclean) > snd-seq-midi-emul 4784 0 [snd-opl3-synth] > snd-seq 37776 2 [snd-seq-oss snd-seq-midi > snd-seq-midi-event snd-opl3-synth snd-seq-instr snd-seq-midi-emul] > snd-ainstr-fm 1796 0 [snd-opl3-synth] > snd-ad1816a 3024 1 > snd-opl3-lib 6532 0 [snd-opl3-synth snd-ad1816a] > snd-hwdep 4576 0 [snd-opl3-lib] > snd-ad1816a-lib 11824 0 [snd-ad1816a] > snd-pcm 63328 0 [snd-pcm-oss snd-ad1816a-lib] > snd-timer 11524 0 [snd-seq snd-opl3-lib snd-ad1816a-lib > snd-pcm] > snd-mpu401-uart 3296 0 [snd-ad1816a] > snd-rawmidi 13920 0 [snd-seq-midi snd-mpu401-uart] > snd-seq-device 4140 0 [snd-seq-oss snd-seq-midi snd-opl3-synth > snd-seq snd-opl3-lib snd-rawmidi] > snd 31300 0 [snd-pcm-oss snd-mixer-oss snd-seq-oss > snd-seq-midi snd-seq-midi-event snd-opl3-synth snd-seq-instr > snd-seq-midi-emul snd-seq snd-ad1816a snd-opl3-lib snd-hwdep > snd-ad1816a-lib snd-pcm snd-timer snd-mpu401-uart snd-rawmidi > snd-seq-device] > soundcore 3396 0 [snd] > st 26924 0 (autoclean) (unused) > sr_mod 13432 0 (autoclean) > cdrom 26400 0 (autoclean) [sr_mod] > sg 27904 0 (autoclean) > joydev 5600 0 (unused) > evdev 4352 0 (unused) > input 3168 0 [joydev evdev] > usb-uhci 21612 0 (unused) > usbcore 56768 1 [usbserial snd usb-uhci] > hisax 470500 4 > isdn 123584 6 [hisax] > slhc 5040 1 [isdn] > isa-pnp 29664 0 [snd-ad1816a hisax] > nls_iso8859-15 3324 3 (autoclean) > nls_cp437 4316 3 (autoclean) > vfat 9620 3 (autoclean) > fat 30584 0 (autoclean) [vfat] > lvm-mod 62976 0 (autoclean) > ide-scsi 7920 0 > reiserfs 179536 1 > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: ####@####.#### > For additional commands, e-mail: ####@####.#### | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: Scrambled image with Plustek 4813P using more than 100 dpi
From: Johannes Hennecke ####@####.#### Date: 11 Jan 2003 17:08:56 -0000 Message-Id: <200301111759.31428.j.he_collect@gmx.de> Hello Gehard, > you might try the switch slowIO... slowIO was already switched on (part of modules.conf): --------------------------------- alias char-major-40 pt_drv pre-install pt_drv modprobe -k parport options pt_drv lampoff=180 warmup=15 port=0x378 lOffonEnd=1 mov=0 slowIO=1forceMode=2 --------------------------------- Best Regards, Johannes Hennecke | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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