Re: [Gimp-print-devel] Printing fails for Canon CP810

[Solomon P. <pi...@sh...>]

On Sun, Aug 11, 2019 at 10:21:54PM +0200, Antoine Vacher wrote:
> I am trying to print pictures taken from a DSLR to a Canon CP810. The
> OS is Rasbian Buster with CUPS and Gutenprint 5.3.1.

Hmm.  A large number of bugs have been fixed since 5.3.1.

> Printing fails for pictures taken directly from the camera (jpg) but
> some other pictures are working.

You will have to elaborate further on this; how are you performing the 
printing?  Are the ones that fail also jpgs?

> Here are the logs:

Is this all of the log for a given print?  It seems incomplete.

> D [11/Aug/2019:22:07:13 +0200] [Job 76] Gutenprint: 5.3.1 Starting
> D [11/Aug/2019:22:07:13 +0200] [Job 76] Gutenprint: command line:
> Canon_CP810 \'76\' \'root\' \'img_20190811_22-07-00.jpg\' \'1\' <args>

Okay, so it appears to be invoked sanely.

> D [11/Aug/2019:22:07:13 +0200] [Job 76] PID 3171
> (/usr/lib/cups/filter/rastertogutenprint.5.3) exited with no errors.

Good...

> D [11/Aug/2019:22:07:13 +0200] [Job 76] PID 3172
> (/usr/lib/cups/backend/gutenprint53+usb) stopped with status 5.

Not good.  This is "CUPS_BACKEND_CANCEL" which is only kicked out if:

 * There is a problem parsing the printjob (bad header or short read)
 * The Job format doesn't match the printer

> [11/Aug/2019:22:07:13 +0200] [Job 76] Backend returned status 5 
> (cancel job)

... which happens before the rasterizer sends out any data.

> Do you know what could cause the error?

I'm honestly not sure.  The SELPHY code has changed very little in the 
last couple of years, and this code should be pretty stable and solid.

I'd like to see this repeated with the new Gutenprint 5.3.3 release.  
Are you comfortable compiling things?

 - Solomon
-- 
Solomon Peachy			       pizza at shaftnet dot org
High Springs, FL                          ^^ (email/xmpp) ^^
Quidquid latine dictum sit, altum videtur.