XAllocColorCells has failed

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Sep 6 14:47:20 PDT 2005

On Tue, 2005-09-06 at 07:29 -0700, Peter J. Bismuti wrote:
> On Saturday 03 September 2005 02:49 pm, Felix Schulte wrote:
> It seems that linux does not have a PseudoColor visual of any kind.  This is 
> news to me.
> The SGI's default visual is PseudoColor, so that app was written assuming the 
> use of colormaps, but the Linux version chokes on XAllocColorCells because it 
> is in 24bit TrueColor mode.

Can you try with the patch :

  * programs/Xserver/hw/xfree86/common/xf86cmap.c:
  Fix tests for maximum number of colours when creating a colourmap, so a
  32-bit visual (e.g. ARGB) doesn't overflow an int when attempting to do
  1 << 32.  (Benjamin Herrenschmidt)

  Revision      Changes    Path
  1.1299        +5 -0      xc/ChangeLog
  1.9           +20 -12

That went in a couple of days ago ? There was a bug that could cause
creation of colormaps to fail for 32 bpp visuals.


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