[Bug 1862926] Re: Request for update: SANE 1.0.29

2020-02-25 Thread Rolf Bensch
Till, in my ppa the symbol files are not up to date. I just removed
outdated entries, but not added new ones.

However, libpng-dev is included to the build by other dependecies. I see
that adding this package to control file makes this dependency more
transparent and I'll add it into my ppa.

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Title:
  Request for update: SANE 1.0.29

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[Bug 1707352] Re: the change from libsane to libsane1 broke many (all?) 3rd party plug-ins for sane

2017-11-01 Thread Rolf Bensch
@Peter:
Alternatively you could use the sources from SANE's daily git snapshots instead 
of using Debian experimental branch.

This also breaks my ppa, which provides builds from SANE's daily git
snapshots.

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Title:
  the change from libsane to libsane1 broke many (all?) 3rd party plug-
  ins for sane

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[Bug 1512027] Re: open of device pixma:MX7600_... failed: invalid argument

2017-08-31 Thread Rolf Bensch
I just fixed this issue. My ppa will provide the fix tomorrow:
1.0.27+git20170901.

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  open of device pixma:MX7600_... failed: invalid argument

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[Bug 1080787] Re: hp scanner 5300c does no longer work after upgrading to quantal

2014-11-15 Thread Rolf Bensch
I just committed the patch to Sane's git repository.

My ppa (https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git)
should work after the next update tomorrow.

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  hp scanner 5300c does no longer work after upgrading to quantal

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[Bug 1096612] Re: canon pixma MP970 TPU scanning stopped working

2013-04-12 Thread Rolf Bensch
I prepared a ppa for SANE daily git snapshots here:
https://launchpad.net/~rolfbensch/+archive/sane-git.

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Title:
  canon pixma MP970 TPU scanning stopped working

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[Bug 601652] Re: Cannon CanoScan 9000F not supported in Ubuntu xsane

2013-01-24 Thread Rolf Bensch
>From latest Sane git self compiled sane-find-scanner is working on my
Ubuntu 12.10.

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Title:
  Cannon CanoScan 9000F not supported in Ubuntu xsane

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[Bug 601652] Re: Cannon CanoScan 9000F not supported in Ubuntu xsane

2013-01-19 Thread Rolf Bensch
I have no experiences with scanning from gimp.

Scanning from xsane is running perfect for me on my 64 bit Ubuntu 12.04.
Otherwise I would fix it and commit the patches to Sane git.  ;)

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  Cannon CanoScan 9000F not supported in Ubuntu xsane

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[Bug 601652] Re: Cannon CanoScan 9000F not supported in Ubuntu xsane

2013-01-19 Thread Rolf Bensch
Congratulations, my last post is obsolete now.

You're right, debugging sane-find-scanner is academic, when the used
scanner is working.

I have the same problem with sane-find-scanner on my Ubuntu 12.10. But
not on my LTS system with Sane compiled from git. I will check it with a
self compiled version next week.

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[Bug 601652] Re: Cannon CanoScan 9000F not supported in Ubuntu xsane

2013-01-19 Thread Rolf Bensch
It seems that there is a communication problem.

Open a terminal and activate debug messages: 'export SANE_DEBUG_PIXMA=11' and 
'export SANE_DEBUG_SANEI_USB=255'. 
(1) check the usb devices: 'lsusb -v &>usb.log'
(2) start scanimage searching your scanner: 'scanimage -L 2>pixma.log'.
(3) try a scan: 'export SANE_DEBUG_PIXMA=4' and 'scanimage 2>scan.log >scan.pnm'

Please provide the logfiles here or in the Sane-devel mailing list:
sane-de...@lists.alioth.debian.org.

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[Bug 601652] Re: Cannon CanoScan 9000F not supported in Ubuntu xsane

2013-01-19 Thread Rolf Bensch
I just tried the CS9000F with xsane on a fresh installed Ubuntu 12.10.

It is working out of the box!

If you want to install latest Sane on top of Ubuntu you should fetch
Sane 1.0.24 from git and follow the installation description "Step by
step install on Linux 2.6.* and 3.*" in README.linux, which comes with
the source files.

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[Bug 1096612] Re: canon pixma MP970 TPU scanning stopped working

2013-01-08 Thread Rolf Bensch
Please use the attached patch to fix pixma_mp810.c.

** Patch added: "pixma_mp810.c.diff"
   
https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1096612/+attachment/3476847/+files/pixma_mp810.c.diff

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  canon pixma MP970 TPU scanning stopped working

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[Bug 459639] Re: X server starts randomly in failsafe when starting from cold boot

2010-09-11 Thread Rolf Bensch
While analysing this problem dont't forget that vga16 and nvidia (and
other graphic drivers) are sharing the same primary frame buffer device
"/dev/fb0"
(https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/459639/comments/52).

Vga16 is the first available graphics driver at boot time, and will be
replaced by other graphic drivers later on.

In kdm.conf the watched event "graphics-device-added fb0
PRIMARY_DEVICE_FOR_DISPLAY=1" isn't secure if a 2nd graphics driver is
used.

To fix this, a new event should be emitted from all graphics drivers or
from upstart or from udev or ... as start condition for kdm.conf. And
upstart must know if there is any other graphics installed beside vga16
(ok, typically on every home and business pc, but what's about small
systems and servers).

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[Bug 585930] Re: kdm starts before nvidia driver is fully loaded

2010-09-06 Thread Rolf Bensch
This is a duplicate of bug #459639.

Robert, your comment #9 shows the main problem. vga16 and nvidia use the
same frame buffer device /dev/fb0 during boot up (see:
https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/459639/comments/52).

With this the start conditions in kdm.conf for the graphics device
doesn't work if nvidia kernel driver isn't loaded or is still loading.

This problem does not only affect nvidia kernel drivers. I think this is
an essential problem of startup.

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[Bug 578732] Re: boot hangs on splash screen, does not show kdm

2010-07-19 Thread Rolf Bensch
It seems that this (https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/459639/comments/53) solved both problems (1) X server starts
randomly in failsafe when starting from cold boot and (2) boot hangs on
splash screen.

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[Bug 459639] Re: [Karmic] X server starts randomly in failsafe when starting from cold boot

2010-07-15 Thread Rolf Bensch
Here is a syslog file with the debug messages from kdm. It shows that
kdm starts before the nvidia drivers are loaded and the sleeping time
before kdm resumes.

** Attachment added: "syslog_with_patch"
   http://launchpadlibrarian.net/51977120/syslog_with_patch

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[Bug 459639] Re: [Karmic] X server starts randomly in failsafe when starting from cold boot

2010-07-15 Thread Rolf Bensch
I patched kdm.conf with a sleep before any other commands will be
executed. For debugging kdm.conf wites 2 messages into syslog: "start
kdm and sleep" and "resume kdm after sleep". Maybe you need to extend
the sleep time, if your graphic card takes more time to load the nvidia
driver than mine. I respawn kdm, so I can cancel the message boxes if
any error occurs and kdm will start up later.

This is only a workaround!

Does anybody has an idea how to recognise a ready loaded graphics driver
from the kernel? Looking for /dev/fb0 is not safe for every hardware
configuration. A solution should work with any free and proprietary
graphics driver.

** Patch added: "kdm.patch"
   http://launchpadlibrarian.net/51976665/kdm.patch

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[Bug 459639] Re: [Karmic] X server starts randomly in failsafe when starting from cold boot

2010-07-15 Thread Rolf Bensch
I found the reason for this problem. The kernel initialises the
framebuffer /dev/fb0 device with the vesa driver (vga16fb) before it
starts loading the nvidia driver. You can see this in the attached
syslog file.

** Attachment added: "syslog"
   http://launchpadlibrarian.net/51976046/syslog

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[Bug 538524] Re: boot hangs on splash screen, doesn't switch to KDM

2010-06-05 Thread Rolf Bensch
Addendum to my last comment.

It seems that this problem occurs:
- only at a cold boot.
- never at a warm boot (reboot).
- only with proprietray NVIDIA graphics driver (never with nouveau).

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[Bug 538524] Re: boot hangs on splash screen, doesn't switch to KDM

2010-06-02 Thread Rolf Bensch
This is also not fixed for me. I have the same symptoms as Alvin
described.

I'm using a fresh installed Kubuntu with the latest upgrades. X server
runs with NVIDIA driver.

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[Bug 527401] Re: grub-installer fails to install on a raid1 array

2010-04-12 Thread Rolf Bensch
I just installed Lucid Beta2 Server with separated Raid1 for /boot. Grub
has been installed on both hard disks.

While creating the md devices, the newly added superblocks are available
as free raid devices. To avoid faulty configurations please hide them.

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