From Newsgroup: alt.os.linux.mageia

Cups on my system at times is extremely slow finding the printer.
my default printer hpd is an HP M402 printer. But if I run say lpstat -a
it takes 25 sec before it lists the printere. It will do the same at
times when i try to print something. I cannot tell when it behaves and
when not.
In /var/log/cups/error I getthe following lines

-------------
W [09/May/2026:13:48:00 -0700] Printer drivers are deprecated and will stop working in a future version of CUPS. See https://github.com/OpenPrinting/cups/issues/103
W [09/May/2026:13:48:10 -0700] CreateProfile failed: org.freedesktop.DBus.Error.NoReply:Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
W [09/May/2026:13:48:15 -0700] CreateProfile failed: org.freedesktop.DBus.Error.NoReply:Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
W [09/May/2026:13:48:20 -0700] CreateDevice failed: org.freedesktop.DBus.Error.NoReply:Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
W [09/May/2026:13:48:30 -0700] CreateProfile failed: org.freedesktop.DBus.Error.NoReply:Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
===============================

The /etc/cups/printers.conf file contains

------------------------
<DefaultPrinter hpd>
PrinterId 10
UUID urn:uuid:5ee2daa3-8a45-3395-4bb0-2e6bca0f51b5
Info Hewlett-Packard HP LaserJet M402dw
Location tunnel
MakeModel HP LaserJet M406 Postscript (recommended)
DeviceURI hp:/usb/HP_LaserJet_M402dw?serial=PHBV703311
State Idle
StateTime 1771315005
ConfigTime 1770083981
Type 8425684
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy retry-job
Option scaling 97
</DefaultPrinter>
===================================

Any clues as to what might be going on here?
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From Newsgroup: alt.os.linux.mageia

William Unruh wrote:

when i try to print something.

What are you usually trying to print /from/?
--
Mike Easter
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From Newsgroup: alt.os.linux.mageia

lpstat -a
25 second pause before it gives me the list

printing from Google chrome
25 sec pause sometimes.

lpr filename
Sometimes a 25 sec pause, sometimes immediate printing

Printing from xpdf--
Sometimes 15 sec, sometimes immediate

The occasional okular printing has sometimes been fast, sometimes slow
(If I do print, it waits for 25 sec before it displays the printing
menu while okular is frozen and whan I tell it to print it waits another
30 sec. before printing)
Eg, just now I printed a file and total time was well over a minute. If
I did
lpr filename, it was about 1 sec.Doing an
strace lpstat -a

I get this snippet from strace --timestamps -f lpstat -a 2>/tmp/l

-------------------------------------
15:25:08 connect(6, {sa_family=AF_UNIX, sun_path="/run/dbus/system_bus_socket"}, 29) = 0
15:25:08 fcntl(6, F_GETFL) = 0x2 (flags O_RDWR)
15:25:08 fcntl(6, F_SETFL, O_RDWR|O_NONBLOCK) = 0
15:25:08 geteuid() = 1000
15:25:08 getsockname(6, {sa_family=AF_UNIX}, [128 => 2]) = 0
15:25:08 poll([{fd=6, events=POLLOUT}], 1, 0) = 1 ([{fd=6, revents=POLLOUT}]) 15:25:08 sendto(6, "\0", 1, MSG_NOSIGNAL, NULL, 0) = 1
15:25:08 sendto(6, "AUTH EXTERNAL 31303030\r\n", 24, MSG_NOSIGNAL, NULL, 0) = 24
15:25:08 poll([{fd=6, events=POLLIN}], 1, -1) = 1 ([{fd=6, revents=POLLIN}]) 15:25:08 read(6, "OK 211fd87f634d78a9eddbb97c69f02"..., 2048) = 37
15:25:08 poll([{fd=6, events=POLLOUT}], 1, -1) = 1 ([{fd=6, revents=POLLOUT}]) 15:25:08 sendto(6, "NEGOTIATE_UNIX_FD\r\n", 19, MSG_NOSIGNAL, NULL, 0) = 19 15:25:08 poll([{fd=6, events=POLLIN}], 1, -1) = 1 ([{fd=6, revents=POLLIN}]) 15:25:08 read(6, "AGREE_UNIX_FD\r\n", 2048) = 15
15:25:08 poll([{fd=6, events=POLLOUT}], 1, -1) = 1 ([{fd=6, revents=POLLOUT}]) 15:25:08 sendto(6, "BEGIN\r\n", 7, MSG_NOSIGNAL, NULL, 0) = 7
15:25:08 poll([{fd=6, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=6, revents=POLLOUT}])
15:25:08 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1\0\0\0\0\1\0\0\0n\0\0\0\1\1o\0\25\0\0\0/org/fre"..., iov_len=128}, {iov_base="", iov_len=0}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 128
15:25:08 poll([{fd=6, events=POLLIN}], 1, 25000) = 1 ([{fd=6, revents=POLLIN}]) 15:25:08 recvmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\2\1\1\f\0\0\0\1\0\0\0=\0\0\0\6\1s\0\7\0\0\0:1.4147\0"..., iov_len=2048}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 264
15:25:08 recvmsg(6, {msg_namelen=0}, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
15:25:08 write(5, "W", 1) = 1
15:25:08 write(5, "W", 1) = 1
15:25:08 write(5, "W", 1) = 1
15:25:08 write(5, "W", 1) = 1
15:25:08 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1f\0\0\0\2\0\0\0\177\0\0\0\1\1o\0\25\0\0\0/org/fre"..., iov_len=144}, {iov_base="a\0\0\0type='signal', interface='or"..., iov_len=102}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 246
15:25:08 poll([{fd=6, events=POLLIN}], 1, 25000) = 1 ([{fd=6, revents=POLLIN}]) 15:25:08 recvmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\2\1\1\0\0\0\0\3\0\0\0005\0\0\0\6\1s\0\7\0\0\0:1.4147\0"..., iov_len=2048}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 72
15:25:08 write(5, "W", 1) = 1
15:25:08 recvmsg(6, {msg_namelen=0}, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
15:25:08 write(5, "W", 1) = 1
15:25:08 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1q\0\0\0\3\0\0\0\177\0\0\0\1\1o\0\25\0\0\0/org/fre"..., iov_len=144}, {iov_base="l\0\0\0type='signal', interface='or"..., iov_len=113}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 257
15:25:08 poll([{fd=6, events=POLLIN}], 1, 25000) = 1 ([{fd=6, revents=POLLIN}]) 15:25:08 recvmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\2\1\1\0\0\0\0\4\0\0\0005\0\0\0\6\1s\0\7\0\0\0:1.4147\0"..., iov_len=2048}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 72
15:25:08 write(5, "W", 1) = 1
15:25:08 recvmsg(6, {msg_namelen=0}, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
15:25:08 write(5, "W", 1) = 1
15:25:08 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1:\0\0\0\4\0\0\0\177\0\0\0\1\1o\0\25\0\0\0/org/fre"..., iov_len=144}, {iov_base="5\0\0\0type='signal', interface='or"..., iov_len=58}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 202
15:25:08 poll([{fd=6, events=POLLIN}], 1, 25000) = 1 ([{fd=6, revents=POLLIN}]) 15:25:08 recvmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\2\1\1\0\0\0\0\5\0\0\0005\0\0\0\6\1s\0\7\0\0\0:1.4147\0"..., iov_len=2048}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 72
15:25:08 write(5, "W", 1) = 1
15:25:08 recvmsg(6, {msg_namelen=0}, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
15:25:08 write(5, "W", 1) = 1
15:25:08 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1\0\0\0\0\5\0\0\0e\0\0\0\1\1o\0\1\0\0\0/\0\0\0\0\0\0\0"..., iov_len=120}, {iov_base="", iov_len=0}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 120
15:25:08 poll([{fd=6, events=POLLIN}], 1, 25000) = 1 ([{fd=6, revents=POLLIN}])

And here is the 25 sec poll

15:25:33 recvmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\3\1\1b\0\0\0\6\0\0\0m\0\0\0\6\1s\0\7\0\0\0:1.4147\0"..., iov_len=2048}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 226
15:25:33 write(5, "W", 1) = 1
15:25:33 recvmsg(6, {msg_namelen=0}, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
15:25:33 write(5, "W", 1) = 1
15:25:33 close(6) = 0


And it prints out the list.




On 2026-05-10, Mike Easter <MikeE@ster.invalid> wrote:

William Unruh wrote:

when i try to print something.

What are you usually trying to print /from/?

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From Newsgroup: alt.os.linux.mageia

On 10/05/2026 05:15, William Unruh wrote:

Printer drivers are deprecated and will stop working in a future version of CUPS.

I'm an all-Brother user here, and I've noticed that line with (minor)
concern because I don't understand it.
I've also experienced CUPS not starting printing - sometimes I have to
repeat the print command, and even then it might be ignored. Then I
select another printer and it works.
--
Grimble
Machine 'Haydn' running Plasma 5.27.10 on 6.6.137-desktop-1.mga9 kernel.
Mageia release 9 (Official) for x86_64
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From Newsgroup: alt.os.linux.mageia


Try waiting for 25sec (that is is timeout for the poll command in cups.)
Now wht that poll command is supposed to accomplish I do not know. It
seems to be an attempt to discover which are the printers available (an
dit is 25 sec evenif there is only one printer in
/etc/cups/printers.conf) and may be some sort of network thing-- trying
to see if there are printers attached from the network.

On my machine, (with no extrior printers on this machine, but with other machines having printer links to this machine) it seems that anything
that references printers (like the menu items in okular/xpdf/lpstat)
enters this valley of death (well valley of ignorance) and waits 25 sec.
At the same time it spews out those warnings (drivers are deprecated, CreateDevice failed: org.freedesktop.DBus.Error.NoReply:Did not receive a reply, or
CreateProfile failed: org.freedesktop.DBus.Error.NoReply:Did not receive
a reply.) while it is waiting. or rather it will do so, even if poll
does not hang. )

I unfortunately have no idea what poll is all about, why it should have
a 25 sec timeout (instead of 5 sec say) and what that poll is connected
to that it wants a response from.



On 2026-05-12, Grimble <grimble@nomail.afraid.org> wrote:

On 10/05/2026 05:15, William Unruh wrote:

Printer drivers are deprecated and will stop working in a future version of CUPS.

I'm an all-Brother user here, and I've noticed that line with (minor) concern because I don't understand it.
I've also experienced CUPS not starting printing - sometimes I have to repeat the print command, and even then it might be ignored. Then I
select another printer and it works.

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