[comp.windows.x] yet another color sun problem

palmer@fcs50b.UUCP (07/08/87)

We're having a problem with X on our Sun 260c (floating point
accelerator, no graphics coprocessor).  As the cursor tracks
across the screen it occasionally leaves artifacts.  The artifacts
(pixels cleared to white) seem to appear only in vertical lines
eight pixels apart.

Has anyone encountered this problem before?  Any ideas and/or
known fixes?

Thanks in advance.


  -Tom				Thomas C. Palmer


  Thomas C. Palmer		NCI Supercomputer Facility
  c/o PRI, Inc.			Phone: (301) 698-5797
  PO Box B, Bldng. 430		Uucp: ...!seismo!elsie!ncifcrf!palmer
  Frederick, MD 21701

Ernest.Hua@SPEECH2.CS.CMU.EDU (07/09/87)

HEY!  We've been experiencing the same problem too!  We are currently
running CMU's MACH operating system, so it is likely that the bug is in
cgtwo0/pixrect/libsun ...

The extra stuff left on the screen is the "x" cursor and this tends to
happen very often in the left-hand side of the screen about 16 pixels
to 20 pixels in (the horizontal position of the mark left behind varies
by about 4 pixels).  This also occurs (very rarely) when the cursor is
moved too fast.

Does anyone else have this problem, too?