The Precise Pangolin has reached end of life, so this bug will not be
fixed for that release
** Changed in: linux (Ubuntu Precise)
Status: Triaged => Won't Fix
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I got it working.
$ cat /etc/modprobe.d/hp_laserjet_2100.conf
options parport_pc io=0xec00 irq=19 dma=3
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https://bugs.launchpad.net/bugs/339752
Title:
CONFIG_PARPORT_PC_FIFO=y causes
BIOS settings for internal parallel port are:
Parallel Port Address378
Parallel Port ModeECP
ECP Mode DMA ChannelDMA3
But I'm using an external card because there is no physical port on the
motherboard.
$ lspci |grep -i parallel
03:00.0 Communication controller: NetMos Technology PCI
Will this be fixed in Precise (12.04)? In which version? I'm using
Ubuntu 12.04 LTS at work and we are using HP LaserJet 2100. We are going
to use LTS version and therefore we need this to be fixed in the 3.2
kernel.
Currently 3.2.0-45 configs don't seem to have the patch:
$ grep PARPORT_PC_FIFO
Tomin: It's actually a kernel bug - if you manually turn DMA on in your
BIOS then printer will work seamlessly. So there's need to be automatic
kernel decision when to turn FIFO on/off (depending on your BIOS DMA
option). I've filled an upstream bug here:
** Branch linked: lp:ubuntu/linux-ppc
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Title:
CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through
parallel port
To manage
This bug was fixed in the package linux - 3.8.0-18.28
---
linux (3.8.0-18.28) raring; urgency=low
[ Andy Whitcroft ]
* (debian) fix internal linkage for separated header packages
- LP: #1165259
[ Gavin Guo ]
* SAUCE: Bluetooth: Add support for Broadcom 413c:8143
-
Can someone of the kernel developers please apply this little patch? It
would be very helpful for many users and I do not get bug reports for
something for which the fix is already available. Thanks.
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Applied to Raring.
** Changed in: linux (Ubuntu Raring)
Status: Triaged = Fix Committed
** Changed in: linux (Ubuntu Raring)
Assignee: (unassigned) = Leann Ogasawara (leannogasawara)
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** Tags added: precise quantal
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Title:
CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through
parallel port
To manage notifications
Linked to Raring config review blueprint:
https://blueprints.launchpad.net/ubuntu/+spec/hardware-r-kernel-config-review
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https://bugs.launchpad.net/bugs/339752
Title:
Hey, any change here? I've already provided a patch, tested it -
everything worked fine. So what's the problem? Thanks
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Title:
Joseph, I have tried what you advised and kernel says this:
[ 784.474354] parport 0x378 (WARNING): CTR: wrote 0x0c, read 0xff
[ 784.474360] parport 0x378 (WARNING): DATA: wrote 0xaa, read 0xff
[ 784.474362] parport 0x378: You gave this address, but there is probably no
parallel port there!
[
This bug was filed against a series that is no longer supported and so
is being marked as Won't Fix. If this issue still exists in a supported
series, please file a new bug.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
There may be an alternative to changing the kernel config option. You
may be able to pass some parameters to the parport_pc module to disable
FIFO.
Can you try loading the module with the following parameters:
parport_pc io=0x378 irq=7 dma=3
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Joseph: All 32bit kernels tested and works as expected. Printer works
great. You can push them as regular updates.
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Title:
I uploaded 32 bit test kernels.
It would be helpful if you could test the raring test kernel:
Raring: http://people.canonical.com/~jsalisbury/lp339752/raring
It would be good to confirm the patch fixes this bug with this test
kernel.
It would also help if the Quantal and Precise test kernels
** Also affects: linux (Ubuntu Raring)
Importance: High
Status: Triaged
** Also affects: linux (Ubuntu Quantal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
** Changed in: linux (Ubuntu Quantal)
Milestone: None = quantal-updates
** Changed in: linux (Ubuntu Precise)
Milestone: None = precise-updates
** Changed in: linux (Ubuntu Raring)
Milestone: quantal-updates = None
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I'll build Precise, Quantal and Raring test kernels with this patch.
I'll post a link to them shortly.
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Title:
CONFIG_PARPORT_PC_FIFO=y causes
** Tags added: raring
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Title:
CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through
parallel port
To manage notifications about
I am sorry I've hidden my comment 8 by mistake (it contains the patch).
Is there any way how to show it again?
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Title:
CONFIG_PARPORT_PC_FIFO=y
Precise, Quantal and Raring test kernels are available for testing. Can
you download each of the kernels and confirm that this bug is resolved?
The kernels can be downloaded from:
Precise: http://people.canonical.com/~jsalisbury/lp339752/precise
Quantal:
Joseph I actually don't know what to test. I've already recompiled the
newest original Ubuntu 12.04 kernel (3.2.0-32-generic-pae) with ONLY ONE
change (CONFIG_PARPORT_PC_FIFO is not set) and everything works as
expected (like under Red Hat based systems).
My box (Ubuntu 12.04):
$ uname -a
Linux
** Tags added: patch
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Title:
CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through
parallel port
To manage notifications about this
This is a small patch which fixes and important functionality and also
has no regression potential as this configuration is used for years in
other distributions. Therefore I suggest to roll an SRU for Quantal and
for Precise LTS of it.
** Changed in: linux (Ubuntu)
Status: Confirmed =
Pavel, thank you very much for the investigations and the patch.
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Title:
CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through
Till, thanks for your quick cooperation. It was a joy for me to get this
fixed ASAP and now I'm waiting for a Precise update :-)
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Title:
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