Description John Reysa 2010-09-01 02:11:21 EDT

Build Identifier: I20100608-0911

When running on AIX-motif on a vnc session with color depth of 8 or 16 and looking at any view using forms, the platform crashed with the following message:
Error: Cairo 1.4.10 does not yet support the requested image format:
       Depth: 8
       Alpha mask: 0x00000000
       Red   mask: 0x00000007
       Green mask: 0x00000038
       Blue  mask: 0x000000c0

Grant Gayed said the following about this bug:
"The problem is that cairo (at least the version that you have) does not support screens with depth 8.  So in theory one way to make this work on the machine(s) where you see this is to change their screen depths to something like 24.  In reality this may or may not be possible, as some AIX boxes out there, including one that we used to have here, only ship with support for depths of 8 by default.

For a more general solution, you could probably just delete the libswt-cairo-motif-<version>.a file from the swt 3.6 jar, which should effectively disable advanced graphics and fall back to handling them in a similar manner to 3.3, before cairo support was added.  This is probably the easiest thing for you to try.  If this doesn't work for some reason then let me know.

Logging a new bug makes sense for this, as swt should handle cases like this better.  Thanks!"

I confirmed that when we run vncserver with color depth of 24, the error goes away.  In addition, I followed Grant's instructions on removing the libcairo library and it worked on both 8 and 16-bit vnc sessions as he thought it would.


Reproducible: Always

Steps to Reproduce:
1. start vncserver session with depth equal 16 on an aix/motif platform
2. bring up eclipse 3.6
3. find a ui component using forms or advanced graphics 
4. platform will lock up and crash