rr2b+@andrew.cmu.edu (Robert Andrew Ryan) (05/23/91)
Anyone know of any patches for the apa16 X server which didn't get realeased as fixes by MIT? I have observed two problems with the X server supplied on the R4 tape after fixes 1-18 from MIT have been applied. 1. Using XDrawSegments with a fill-style of FillStippled and a grey bitmap as the stipple sometimes leave all or part of the first(?) line segment undrawn (for horizontal lines). 2. At times it appears that if output is being generated to another window while one window has the mouse and keyboard grabbed and an override-redirect window up drawing can get confused and draw OUTSIDE the window being drawn into (by the process which grabbed the keyboard and mouse, NOT the X server). BTW: I believe one symptom of this bug can be seen using MWM (version<=1.1.1 I believe), sometimes two pixel wide line segments get left lying around after you move or resize a window. I suspect these problems may be due to the difficulty in syncing the output of the drawing requests to the apa16 card with the cards actual progress executing previous requests, anyone have any ideas? I would really like to fix these bugs, they're making my code look bad. (Yes, I am sure it is a server problem in as much as if I run the display on another machine, say RS6000 or Decstation, everything looks ok, but if I run it from an RS6000 or Decstation to a display on an RT it experiences the problems described.) Thanks for any info, -Rob Ryan