Bug 8073 - cairo fails on 8-bit display
Summary: cairo fails on 8-bit display
Status: RESOLVED DUPLICATE of bug 4945
Alias: None
Product: cairo
Classification: Unclassified
Component: xlib backend (show other bugs)
Version: 1.2.0
Hardware: All All
: high critical
Assignee: Carl Worth
QA Contact: cairo-bugs mailing list
Depends on:
Reported: 2006-08-30 10:50 UTC by Dan McMahill
Modified: 2006-08-30 10:56 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Description Dan McMahill 2006-08-30 10:50:58 UTC
Seems that gtk is no longer compatible with 8 bit displays.  I'm running on a
NetBSD-2.0/alpha box but the display is set to a Solaris-2.9/sparc box
(Ultra/10) that only has an 8 bit display.  I have


When I run even a simple program like the gtk-demo program which comes with gtk,
I get the following:

% gtk-demo
Error: Cairo does not yet support the requested image format:
        Depth: 8
        Alpha mask: 0x00000000
        Red   mask: 0x00000000
        Blue  mask: 0x00000000
        Green mask: 0x00000000
Please file an enhacement request (quoting the above) at:
assertion "NOT_REACHED" failed: file "cairo-image-surface.c", line 144, function

When I display to a different X server that has more colors then things work. 
Unfortunately, my ultra/10 is one of my primary systems and upgrading to a true
color display is just not in the works.
Comment 1 Carl Worth 2006-08-30 10:56:23 UTC

*** This bug has been marked as a duplicate of 4945 ***

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