RE: [Plplot-devel] xwin driver bug under PseudoColor Xserver

[Geoffrey F. <fu...@ga...>]

This error report looks susiciously similar to something I discovered
a few months back, and reported to the XFree86 guys as a bug in XF86.
They were skeptical initially, but finaly gave in.  It's been long
enough that I'm having trouble remembering, but it had something to do
with PLplot trying to figure out how many mutable colormap cells there
are by allocating them until they were exhausted, and somehow XF86 was
saying there was one more than there really was, and trouble ensuing
downstream. =20

Jo=E3o Cardoso writes:
 > Hi,
 >=20
 > For some reason I had to use plplot in a 8 bits PseudoColor xserver=20=

 > (256 colors), and got the following error:
 >=20
 > jcard@rick:~/tmp/plplot-clean/tmp > ./x01c -dev xwin -debug
 > Plplot library version: 5.1.0
 > XVisual class =3D=3D PseudoColor
 > xwd->rw_cmap =3D 1
 > Downgrading to r/o cmap.
 > Attempting to allocate r/o colors in cmap0.
 > X Error of failed request:  BadMatch (invalid parameter attributes)
 >   Major opcode of failed request:  1 (X_CreateWindow)
 >   Serial number of failed request:  11
 >   Current serial number in output stream:  15
 >=20
 > Will it be worth correcting it, or are 256 colors PseudoColor xserve=
rs=20
 > part of the past?
 >=20
 > Joao
 >=20
 >=20
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