IPP-over-USB support broken
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| | system-config-printer (Ubuntu) |
High
|
Unassigned | ||
| | Vivid |
High
|
Unassigned | ||
Bug Description
The support for IPP-over-USB printers in udev-configure-
1. If the printer connected to USB supports IPP-over-USB, the automatic generation of a print queue can hang for three minutes
2. If the printer connected to USB does not support IPP-over-USB udev-configure-
This occurs in Vivid and Wily.
[Impact]
All Vivid users with a USB printer will not get automatic setup of print queues (printer does not do IPP-over-USB) or a print queue setup delayed by around 3 minutes (IPP-over-USB printers).
[Test Case]
Connect a USB printer for which there is not yet set up a local print queue. Usually within some seconds a print queue is set up automatically for it. No queue gets set up, for IPP-over-USB printers it takes around three minutes to get a print queue.
The proposed package fixes this problem.
[Regression Potential]
Very low. The patch is trivial and it affects only the automatic setup of USB printers. Network printer setup and manual setup of USB printers or printing on already existing queues is not affected.
| description: | updated |
| Changed in system-config-printer (Ubuntu Vivid): | |
| importance: | Undecided → High |
| milestone: | none → vivid-updates |
| Changed in system-config-printer (Ubuntu): | |
| milestone: | vivid-updates → none |
| Till Kamppeter (till-kamppeter) wrote : | #1 |
| Changed in system-config-printer (Ubuntu): | |
| status: | New → Fix Committed |
| Changed in system-config-printer (Ubuntu Vivid): | |
| status: | New → In Progress |
| Till Kamppeter (till-kamppeter) wrote : | #2 |
To the SRU team: debdiff attached.
| Launchpad Janitor (janitor) wrote : | #3 |
This bug was fixed in the package system-
---------------
system-
* debian/
to make auto-setup of print queues work correctly again, for both
devices supporting and not supporting IPP-over-USB (LP: #1455212).
-- Till Kamppeter <email address hidden> Thu, 14 May 2015 17:02:47 -0300
| Changed in system-config-printer (Ubuntu): | |
| status: | Fix Committed → Fix Released |
Hello Till, or anyone else affected,
Accepted system-
Please help us by testing this new package. See https:/
If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-
Further information regarding the verification process can be found at https:/
| Changed in system-config-printer (Ubuntu Vivid): | |
| status: | In Progress → Fix Committed |
| tags: | added: verification-needed |
| Sanjay Kumar (sanjay-kumar14) wrote : | #5 |
Hello Till,
Sorry for the delay. While testing the applied patch in fresh Ubuntu 15.04 machine, the issue seems to be half fixed and can be still reproduced. After comparing the setup with old Ubuntu system, I found that, while debugging I added RUN{builtin}
ISSUE1: udev-add-printer script cannot be launched from udev-configure-
ISSUE2: Not yet fixed. Need to write proper udev rules for the programs that create daemons. I have explained the issue properly in the attached file.
systemd-udevd worker process hangs for about 3 minutes and hence
1) Setting permissions to device node in /dev directory is delayed by 3 minutes.
2) udev-add-printer process remains in Zombie state for about 3 minutes as parent process does not read its exit value
3) ippusbxd daemon (which is forked from ippusbxd main process before returning ipp port) is terminated after 3 minutes, and hence ipp uri becomes unusable as there is no daemon listening to ipp requests.
I could not spend more time to test the proposed fix (i.e using TAG+= "systemd", ENV{SYSTEMD-
Thanks,
Sanjay
| Sanjay Kumar (sanjay-kumar14) wrote : | #6 |
| Till Kamppeter (till-kamppeter) wrote : | #7 |
The proposed package fixes the more important issue of print queues not auto-created at all for all non-IPP-over-USB printers, which is an essential feature of Ubuntu (Plug'n'Print) which got completely lost. The 3-minute delay on IPP-over-USB printers (which are still a minority under the USB printers) is caused by the switchover from Upstart to systemd is not covered. As the former issue is much more important the SRU is worth it already without the fix for the latter issue. Therefore I mark this "verification-done" to make the fix for the first issue going into -updates and will issue another SRU as soon as there is a fix for the other problem.
| tags: |
added: verification-done removed: verification-needed |
| Launchpad Janitor (janitor) wrote : | #8 |
This bug was fixed in the package system-
---------------
system-
* debian/
to make auto-setup of print queues work correctly again, for both
devices supporting and not supporting IPP-over-USB (LP: #1455212).
-- Till Kamppeter <email address hidden> Thu, 14 May 2015 17:02:47 -0300
| Changed in system-config-printer (Ubuntu Vivid): | |
| status: | Fix Committed → Fix Released |
The verification of the Stable Release Update for system-
Sanjay, I have prepared the fix now and uploaded the fixed packages to Wily (Ubuntu15.10 under development) and to the proposed package repository for Vivid (current 15.04 release). To get it to be an official update for 15.04 it needs to get tested and feddback to given here. As soon as the 15.04 package is approved for testing instructions will get posted here. Please follow them and give your feedback whether you get quick print queue creation and permission setting for both IPP-over-USB asnd non-IPP-over-USB printers.
Thanks in advance.