Hi Laurent, Henrique, On Tue, Apr 04, 2006 at 12:26:21AM +0200, Laurent Aguerreche wrote: > to prove that the problem comes from the test in file > hplip-0.9.9/io/hpiod/device.cpp at line 919, I commented the code: > > [...] > > blackout: > pthread_mutex_unlock(&mutex); > > > and know, it works... > > So, somewhere "model" is uppercased or misread but I don't know why and > where, or "model" should be lowercased... I upgraded hplip yesterday and could not print anymore today. I found the following line in my logs:
Apr 4 11:49:11 pulsar hpiod: invalid model DeskJet_990C != DESKJET_990C
Device::Open io/hpiod/device.cpp 919
This looked quite like this bug report so I tried to validate that
assumption by using strcasecmp instead of strcmp in Device::Open. That
did not help though, the new problem was a bit less informational:
Apr 4 12:11:20 pulsar hpiod: unable to Device::Open
hp:/usb/DESKJET_990C?serial=ES08P1C14YLG io/hpiod/device.cpp 870
For that reason I instrumented some of that code (after giving up using
gdb) which turned out the problem was in this line of Device::IsUri:
if (strcmp(uriModel, gen) != 0)
It showed that uriModel was uppercase and gen (received from the
printer) was mixed case. The uppercase version in fact seemed to come
from my printers.conf of cups, so I changed it to the same mixed case of
DeviceURI hp:/usb/DeskJet_990C?serial=ES08P1C14YLG
After that change it works again, even with the hplip in the
distribution.
I have to add that I did not specify the name of the printer at any
time. It was auto detected during installation back then so I assume
that this will break for many people during upgrade. When time permits
I'll install an older version again on a test system and check if an
upgrade reproduces this problem.
Greetings
Torsten
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