Ubuntu
linux-source-2.6.15 package

Parallel port printer not working

Bug #37881 reported by grendel970
8
Affects Status Importance Assigned to Milestone
linux-source-2.6.15 (Ubuntu)
Fix Released
Medium
Unassigned

Bug Description

I have an HP Deskjet 722c connected via parallel port which does not work. The system recognizes it and attaches lp0.

I have applied the / to - change from bug #32085, cups seems to behave better and it looks like the jobs complete successfully, but the printer still does not work.

I have tried:
1. installing ppd file for this printer from linuxprinting.org (after changing / to - in *NickName*)
2. chmod 666 on /dev/lp0, not a permissions problem
3. turned debugging on in cups
4. Tried many different bios changes, ECP mode, irq 7 reserved and not reserved, PNP off and on,, etc, the printer is always recognized through these changes, but no go. Even resetting bios to defaults which is 0x378/SPP/irq7 does not work.
5. dpkg-reconfigure cupsys

Unfortunately I cannot echo anything raw to the printer. I know the parallel port and printer work fine as I can boot into my other distro (FC3) and bing, it works.

I did not try the printer in breezy, I just installed and did an upgrade to dapper, but from the bootup in the breezy kernel I did get the "PnPBIOS parallel port detected..." message, which I have not receieved since going to the 2.6.15 dapper kernel.

Revision history for this message
grendel970 (dn) wrote :

this seems related to bug #33161.

Revision history for this message
grendel970 (dn) wrote :

The following is my printer, this is one of 13 not configured to the acpi problem.

 pnp: PnPACPI: METHOD_NAME__CRS failure for PNP0400

I have tried:

pnpacpi=off
pci=noapic,routeirq
pci=routeirq
acpi=off
acpi=strict
I have tried pnpacpi=off with ACPI v2.0 turned on at bios (off by default).
All of these were with 0x378 and irq 7 set for the parallel port in bios with spp mode, and mostly with irq7 reserved. I think this is definitely an acpi problem.

pnpacpi=off removes the error messages, and throughout all of these the printer is recognized, but it still will not work. I am guessing the magic point is (like in breezy) where I get acpi pnp configuring all devices, specifically my parallel port.

Revision history for this message
grendel970 (dn) wrote :

2.6.15-20 does not fix, the acpi pnp fix does make it detect properly but it still does not work, tried:

irq7,0x378
above w/ irq7 reserved
ecp mode with above and dma0

oddly enough when tracing cups parallel writer, I get the following repeatedly on descriptor 4?

read(4, 0xbfb21dae, 1024) = -1 EBADF (Bad file descriptor)

Revision history for this message
grendel970 (dn) wrote :

Actually it turns out the problem was somewhere in cups or the filters because with the recent cups updates the printer now works, and I tried on on 2.6.15-19 with broken acpi pnp and it still worked. Nice job ubuntu guys!

Ben Collins (ben-collins)
Changed in linux-source-2.6.15:
status: Unconfirmed → Fix Released
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