Ok, it is consistent and repeatable:
*Everytime* I do a routine 'yum update' on the CentOS 6.5 server (64-bit) the printers (both of them networked laser printers, one an [old] HP Laserjet 4200 and one a [new] Brother MFC-9970CDW), cups loses the ability to print (its filter chain becomes broken). According to the CUPS mailing list, this error is 'never' because of of problem with cups, but always with the 'underlying operating system' -- eg the 'underlying operating system' has messed with the filters CUPS uses for the printers.
So is this a *known* problem? Or is there something Redhat has done to the distributed cups RPM (or is it something the CentOS developers have done to the Redhat source rpm)?
I noticed that the update I just did included an updated cups RPM.
The *appearent* cure (workaround?) is to delete the printers, and re-install them.
Has anyone else had this problem?
On Sat, Aug 09, 2014 at 05:12:59PM -0400, Robert Heller wrote:
Ok, it is consistent and repeatable:
*Everytime* I do a routine 'yum update' on the CentOS 6.5 server (64-bit) the printers (both of them networked laser printers, one an [old] HP Laserjet 4200 and one a [new] Brother MFC-9970CDW), cups loses the ability to print (its filter chain becomes broken). According to the CUPS mailing list, this error is 'never' because of of problem with cups, but always with the 'underlying operating system' -- eg the 'underlying operating system' has messed with the filters CUPS uses for the printers.
So is this a *known* problem? Or is there something Redhat has done to the distributed cups RPM (or is it something the CentOS developers have done to the Redhat source rpm)?
I noticed that the update I just did included an updated cups RPM.
The *appearent* cure (workaround?) is to delete the printers, and re-install them.
Has anyone else had this problem?
Not me.
I have two Brother printers at home, both networked, and my personal workstation at home is Centos s6.5 64-bit. I've never seen that problem with either printer, one of which uses the drivers shipped with Centos, the other uses Brother's official drivers.
On Sat, August 9, 2014 4:25 pm, Fred Smith wrote:
On Sat, Aug 09, 2014 at 05:12:59PM -0400, Robert Heller wrote:
Ok, it is consistent and repeatable:
*Everytime* I do a routine 'yum update' on the CentOS 6.5 server (64-bit) the printers (both of them networked laser printers, one an [old] HP Laserjet 4200 and one a [new] Brother MFC-9970CDW), cups loses the ability to print (its filter chain becomes broken). According to the CUPS mailing list, this error is 'never' because of of problem with cups, but always with the 'underlying operating system' -- eg the 'underlying operating system' has messed with the filters CUPS uses for the printers.
So is this a *known* problem? Or is there something Redhat has done to the distributed cups RPM (or is it something the CentOS developers have done to the Redhat source rpm)?
I noticed that the update I just did included an updated cups RPM.
The *appearent* cure (workaround?) is to delete the printers, and re-install them.
Has anyone else had this problem?
Not me.
I have two Brother printers at home, both networked, and my personal workstation at home is Centos s6.5 64-bit. I've never seen that problem with either printer, one of which uses the drivers shipped with Centos, the other uses Brother's official drivers.
Not me either. I have two departments each with cups print server on latest Centos 6 (talking to actual printer via jetdirect ports), dozens of CentOS 6 (fully updated as well) workstations which cups talking to print queue servers via LPD (yes I prefer LPD communication here even though it passes jobs over to CUPS then). And never ever I had CUPS configuration dropped after CUPS update (neither on print queue server, not on workstations).
just my $0.02.
Thanks. Valeri
--
---- Fred Smith -- fredex@fcshome.stoneham.ma.us
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us.------------------------------- Romans 5:8 (niv)
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
On 8/9/2014 2:12 PM, Robert Heller wrote:
The*appearent* cure (workaround?) is to delete the printers, and re-install them.
how are you installing/configuring the printers? are you editing any .conf files that are included in the packages ?
On Sun, Aug 10, 2014 at 2:42 AM, Robert Heller heller@deepsoft.com wrote:
Ok, it is consistent and repeatable:
*Everytime* I do a routine 'yum update' on the CentOS 6.5 server (64-bit) the printers (both of them networked laser printers, one an [old] HP Laserjet 4200 and one a [new] Brother MFC-9970CDW), cups loses the ability to print (its filter chain becomes broken). According to the CUPS mailing list, this error is 'never' because of of problem with cups, but always with the 'underlying operating system' -- eg the 'underlying operating system' has messed with the filters CUPS uses for the printers.
I have not experienced any broken chains. With generic (Debian Wheezy) driver my Samsung 1640 printer would not print any pages randomly. cups administration (localhost:631) would show things are fine. At times a cups restart would help.
So is this a *known* problem? Or is there something Redhat has done to the distributed cups RPM (or is it something the CentOS developers have done to the Redhat source rpm)?
I don't think so. My problem with Samsung 1640, were on Debian.
The *appearent* cure (workaround?) is to delete the printers, and re-install them.
Yes, it would work for a while for me.
Has anyone else had this problem?
In my case, I installed the printer driver for 1640 from Samsung's support site and things have more stable for me.
-- Arun Khan
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Arun Khan -
Fred Smith -
John R Pierce -
Robert Heller -
Valeri Galtsev