Red Hat Bugzilla – Bug 188
ImageMagick modules generate errors when reading postscript
Last modified: 2008-05-01 11:37:48 EDT
Below I have appended the errors generated by the ImageMagick module convert. The same errors are generated by display. I have just installed RH5.2 which uses ImageMagick-4.1.0. RH5.1 did not generate these errors. Only Unknown device: pnmraw. I have tested many postscript files generated from many different softwares, and the result is the same. What is the cause, and what is the fix for this problem? Thanks --Simon McClusky convert figure2.ps figure2.gif Unknown device: pnmraw Unrecoverable error: undefined in get Operand stack: --nostringval-- --nostringval-- ARGUMENTS --nostringval-- defaultdevice Unexpected interpreter error -21. Error object: (f80)op(207:get)0x80811e0 Operand stack at 0x813cc74: 0x81446a4: 0x0d name --S------ 0x0480 0x08184d08 = defaultdevice 0x81446ac: 0x02 dict --Lwrx--- 0x0000 0x0814b894 0x81446b4: 0x0d name --S------ 0x0283 0x0813ff88 = ARGUMENTS 0x81446bc: 0x02 dict --Gwrx--- 0x0813 0x08180124 0x81446c4: 0x0c mark --F------ 0x0000 0x081839fa Execution stack at 0x813ccc8: 0x814600c: 0x0f oper --F---e-- 0x0000 0x08071650 = %interp_exit 0x8146014: 0x03 file --G-rxe-- 0x0001 0x0817b620 0x814601c: 0x05 mpry --G-rxe-- 0x0009 0x0817c3fc 0x8146024: 0x05 mpry --G-rxe-- 0x0039 0x0817ca72 Dictionary stack at 0x813cbf0: 0x814683c: 0x02 dict --Gwrx--- 0x0000 0x0814698c 0x8146844: 0x02 dict --Gwrx--- 0x0000 0x0814698c 0x814684c: 0x02 dict --Lwrx--- 0x0000 0x0814b894 0x8146854: 0x02 dict --Gwrx--- 0x0000 0x0814698c
this looks like the pnmraw device has to be enabled in ghostscript. Cristian, you agree with this one?
It is not clear to me that pnmraw is the problem, as both RH5.0 and 5.1 versions of gs did not have pnmraw devices. Also the ImageMagick documentations says it only requires either a pnmraw or ppmraw device. gs -h shows that ppmraw is available. Also, the first error message Unknown device: pnmraw was common to both the RH5.0 and 5.1 ImageMagick packages too. Additionally gs used by itself doen't generate any error messages, which indicates to me that this problem is probably related to how gs and the ImageMagick modules interact with each other... --Simon McClusky
the imagemagick/ghostscript combination that is now in rawhide does not have problems converting Postscript files to GIF.