Bug 1216846

Summary: Upgrading from 20231030 to 20231031 breaks network printing via CUPS
Product: [openSUSE] openSUSE Tumbleweed Reporter: dev <dev>
Component: PrintingAssignee: Johannes Meixner <jsmeix>
Status: RESOLVED WORKSFORME QA Contact: Johannes Meixner <jsmeix>
Severity: Normal    
Priority: P5 - None    
Version: Current   
Target Milestone: ---   
Hardware: x86-64   
OS: openSUSE Tumbleweed   
Whiteboard:
Found By: --- Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description dev 2023-11-03 04:37:36 UTC
After upgrading via zypper dup to 20231031 network printing via CUPS is broken. Restarting cups and cups-browsed didn't resolve. Unclear what diagnostic information would be relevant here, but let me know and I can share additional details.
Comment 1 Johannes Meixner 2023-11-03 08:31:43 UTC
I think the root cause is some change outside of CUPS
and/or cups-filters (the latter contains cups-browsed)
because as of today (03.Nov.2023)
nothing changed in CUPS since 20.Sep.2023 and
nothing changed in cups-filters since 17.May.2023,
see
https://build.opensuse.org/package/view_file/openSUSE:Factory/cups/cups.changes?expand=1
and
https://build.opensuse.org/package/view_file/openSUSE:Factory/cups-filters/cups-filters.changes?expand=1

To debug certain network printing issues
https://en.opensuse.org/SDB:Printing_via_TCP/IP_network
could be somewhat useful but it depends on
what the root cause is why printing via network fails,
e.g. when the reoot cause is a generic networking issue
then generic networking debugging would be needed.
Comment 2 dev 2023-11-04 02:21:19 UTC
It seems the update resulted in some files in /etc/cups being changed (and a .ppd file being deleted). Reverting changes to those files fixed the issue. 

It's unclear if this was a one time issue, or if there's a regression in some of the update scripts causing, among other things, for the ppd file in /etc/cups/ppd to be deleted.
Comment 3 dev 2023-11-05 22:17:17 UTC
after reverting the CUPS configuration things seem to be working (as of 20231103). the root cause is still unclear, but closing this for now. will reopen if needed.