[Bug 1838229] Re: ppd updating unexpectedly after printing job finished

[Zhu Yijun]

This problem makes the settings of the driver UI saving failed and
inconvenient to users. Please tell us the reasons for this problem in
order to solve the problem.

And our PPD file contains repetitive KeyWords as below, we wonder if it
is the reason of the problem. Please confirm and We are looking forward
for your reply.

PPD Files Detail(repetitive KeyWords of "RIBlack","RICyan", "RIMagenta", 
"RIYellow")
---
*PJLINQ RIBlack: "GAMMAK"
*PJLINQ RICyan: "GAMMAC"
*PJLINQ RIMagenta: "GAMMAM"
*PJLINQ RIYellow: "GAMMAY"
*SNMPOID RIBlack: ".1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.1"
*SNMPOID RICyan: ".1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.2"
*SNMPOID RIMagenta: ".1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.3"
*SNMPOID RIYellow: ".1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.4"
...
 *OpenGroup: AdjustColorDensity/Adjust Color Density
 *OpenUI *RICyan/C: PickOne
 *OrderDependency: 130 AnySetup *RICyan
 *DefaultRICyan: 1 ※ppd loading target keyword(expected result)
 *RICyan 1/1: "%% RICyan=1"
 *RICyan 2/2: "%% RICyan=2"
 *RICyan 3/3: "%% RICyan=3"
 *RICyan 4/4: "%% RICyan=4"
 *RICyan 5/5: "%% RICyan=5"
 *RICyan 6/6: "%% RICyan=6"
 *RICyan 7/7: "%% RICyan=7"
 *RICyan 8/8: "%% RICyan=8"
 *RICyan 9/9: "%% RICyan=9"
 *CloseUI: *RICyan
 *OpenUI *RIMagenta/M: PickOne
 *OrderDependency: 130 AnySetup *RIMagenta
 *DefaultRIMagenta: 1 ※ppd loading target keyword(expected result)
 *RIMagenta 1/1: "%% RIMagenta=1"
 *RIMagenta 2/2: "%% RIMagenta=2"
 *RIMagenta 3/3: "%% RIMagenta=3"
 *RIMagenta 4/4: "%% RIMagenta=4"
 *RIMagenta 5/5: "%% RIMagenta=5"
 *RIMagenta 6/6: "%% RIMagenta=6"
 *RIMagenta 7/7: "%% RIMagenta=7"
 *RIMagenta 8/8: "%% RIMagenta=8"
 *RIMagenta 9/9: "%% RIMagenta=9"
 *CloseUI: *RIMagenta
 *OpenUI *RIYellow/Y: PickOne
 *OrderDependency: 130 AnySetup *RIYellow
 *DefaultRIYellow: 1 ※ppd loading target keyword(expected result)
 *RIYellow 1/1: "%% RIYellow=1"
 *RIYellow 2/2: "%% RIYellow=2"
 *RIYellow 3/3: "%% RIYellow=3"
 *RIYellow 4/4: "%% RIYellow=4"
 *RIYellow 5/5: "%% RIYellow=5"
 *RIYellow 6/6: "%% RIYellow=6"
 *RIYellow 7/7: "%% RIYellow=7"
 *RIYellow 8/8: "%% RIYellow=8"
 *RIYellow 9/9: "%% RIYellow=9"
 *CloseUI: *RIYellow
 *OpenUI *RIBlack/K: PickOne
 *OrderDependency: 130 AnySetup *RIBlack
 *DefaultRIBlack: 1 ※ppd loading target keyword(expected result)
 *RIBlack 1/1: "%% RIBlack=1"
 *RIBlack 2/2: "%% RIBlack=2"
 *RIBlack 3/3: "%% RIBlack=3"
 *RIBlack 4/4: "%% RIBlack=4"
 *RIBlack 5/5: "%% RIBlack=5"
 *RIBlack 6/6: "%% RIBlack=6"
 *RIBlack 7/7: "%% RIBlack=7"
 *RIBlack 8/8: "%% RIBlack=8"
 *RIBlack 9/9: "%% RIBlack=9"
 *CloseUI: *RIBlack
 *CloseGroup: AdjustColorDensity
 ...

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Title:
  ppd updating unexpectedly after printing job finished

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[Bug 1838229] [NEW] ppd updating unexpectedly after printing job finished

[Zhu Yijun]

Public bug reported:

Ubuntu 16.04LTS
OS Version： 16.04.5
CUPS Version： 2.1.3
Ghostscript Version： 9.18 


ppd updating unexpectedly after printing job finished


We(RICOH printer driver developer) got a bug report from the users of our 
printer:
We changed the UI setting(DefaultRICyan, DefaultRIMagenta, DefaultRIYellow, 
DefaultRIBlack) of the RICOH driver. 
And confirmed the PPD setting(DefaultRICyan, DefaultRIMagenta, DefaultRIYellow, 
DefaultRIBlack) in etc/cups/ppds/.ppd was changed correctly before printing.
When the printing job completed, We expected the PPD file is same with the one 
before printing.
But after printing job completed, a part of setting in 
etc/cups/ppds/.ppd(DefaultRICyan, DefaultRIMagenta, DefaultRIYellow, 
DefaultRIBlack) was changed unexpectedly.
It seems be changed to the value in /usr/share/ppd/ricoh/.ppd.

According to the "CUPS Error Log" and the open source of CUPS, it seems that 
CUPS Updated the PPD Setting after the printing job.
We doubt that CUPS didn't find a part of the keyword we changed in the PPD file.

Error Log
== 
D [19/Jul/2019:19:05:52 +0800] cupsdSetBusyState: newbusy="Printing jobs and 
dirty files", busy="Active clients, printing jobs, and dirty files"
D [19/Jul/2019:19:05:52 +0800] [Job 2] PID 2714 
(/usr/lib/cups/filter/gstoraster) exited with no errors.
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 25 
(.1.3.6.1.2.1.43.8.2.1.13)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning .1.3.6.1.2.1.43.8.2.1.13.1.1 
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 29 
(.1.3.6.1.2.1.43.8.2.1.13.1.1)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning .1.3.6.1.2.1.43.8.2.1.14.1.1 1
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 25 
(.1.3.6.1.2.1.43.8.2.1.13)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning .1.3.6.1.2.1.43.8.2.1.13.1.1 
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 29 
(.1.3.6.1.2.1.43.8.2.1.13.1.1)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning .1.3.6.1.2.1.43.8.2.1.14.1.1 1
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 34 
(.1.3.6.1.4.1.367.3.2.1.2.11.3.1.2)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.11.3.1.2.1 
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 36 
(.1.3.6.1.4.1.367.3.2.1.2.11.3.1.2.1)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.11.3.1.2.2 
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET_NEXT: 36 
(.1.3.6.1.4.1.367.3.2.1.2.11.3.1.2.2)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.13.3.0 
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET: 38 
(.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.1)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.1 6
D [19/Jul/2019:19:05:52 +0800] [Job 2] PPD: DefaultRIBlack=5※ppd loading 
unexpectedly
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET: 38 
(.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.2)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.2 6
D [19/Jul/2019:19:05:52 +0800] [Job 2] PPD: DefaultRICyan=5※ppd loading 
unexpectedly
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET: 38 
(.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.3)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.3 6
D [19/Jul/2019:19:05:52 +0800] [Job 2] PPD: DefaultRIMagenta=5 ※ppd loading 
unexpectedly
D [19/Jul/2019:19:05:52 +0800] [Job 2] CUPS_SC_CMD_SNMP_GET: 38 
(.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.4)
D [19/Jul/2019:19:05:52 +0800] [Job 2] Returning 
.1.3.6.1.4.1.367.3.2.1.2.18.2.1.7.1.4 6
D [19/Jul/2019:19:05:52 +0800] [Job 2] PPD: DefaultRIYellow=5  ※ppd loading 
unexpectedly
D [19/Jul/2019:19:05:52 +0800] [Job 2] Waiting for status monitor to stop
D [19/Jul/2019:19:05:53 +0800] [Job 2] Status monitor stopped
D [19/Jul/2019:19:05:53 +0800] [Job 2] Job finished
...
I [19/Jul/2019:19:05:53 +0800] Expiring subscriptions...
D [19/Jul/2019:19:05:53 +0800] cupsdMarkDirty(---J-)
D [19/Jul/2019:19:05:53 +0800] cupsdSetBusyState: newbusy="Printing jobs and 
dirty files", busy="Printing jobs and dirty files"
D [19/Jul/2019:19:05:53 +0800] cupsdSetBusyState: newbusy="Printing jobs and 
dirty files", busy="Printing jobs and dirty files"
D [19/Jul/2019:19:05:53 +0800] cupsdMarkDirty(S)
D [19/Jul/2019:19:05:53 +0800] cupsdSetBusyState: newbusy="Printing jobs and 
dirty files", busy="Printing jobs and dirty files"
D [19/Jul/2019:19:05:53 +0800] cupsdMarkDirty(---J-)
D [19/Jul/2019:19:05:53 +0800] cupsdSetBusyState: newbusy="Printing jobs and 
dirty files", busy="Printing jobs and dirty files"
D [19/Jul/2019:19:05:53 +0800] cupsdMarkDirty(---J-)
D [19/Jul/2019:19:05:53 +0800] cupsdSetBusyState: newbusy="Printing jobs and 
dirty files", busy="Printing jobs and dirty files"
I [19/Jul/2019:19:05:53 +0800] Updating keywords in PPD file for