[Bug 63572] commit a19da0ea517127052ae49cdd6441e8b6077ca523 (sna: Reduce DefaultDepth to 16 on older chipsets) breaks evas

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63572

--- Comment #1 from Carsten Haitzler <raster at rasterman.com> ---
i just tested e in 16bpp (xephyr) and it works fine. i know i tested this long
before and just before release of e17 too and it worked. i dont test 16bpp
regularly, but every now and again...

http://www.enlightenment.org/ss/e-516c92a8841755.22448970.png

notice the dithering if you zoom in. 16bpp...

could you give more details - like it crashes immediately on start? you are is
the depth 16bpp BUT the visual is still 24bpp with 24bpp rgb masks? xdpyinfo
will tell you this. i.e.

  depth of root window:    24 planes
...
  default visual id:  0x21
  visual:
    visual id:    0x21
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits

or for 16bpp you SHOULD see:

  depth of root window:    16 planes
...
  default visual id:  0x21
  visual:
    visual id:    0x21
    class:    TrueColor
    depth:    16 planes
    available colormap entries:    64 per subfield
    red, green, blue masks:    0xf800, 0x7e0, 0x1f
    significant bits in color specification:    8 bits

more information needed. also consider using valgrind to catch the problem
earlier.

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