grunwald@uiucdcsm.cs.uiuc.edu (10/10/87)
Anyone else having problems with the X11 gnuemacs interface? I've added code to enable the function keys. My main problem right now is that screen updates don't always happen -- I don't know enough X to figure out the problem. Sometimes screen updates don't occur, but when I hit ctl-L (repaint-window or something like that in Gnu), it gets properly displayed. I suspect some threshold for gathering & batching updates to the display server. Any clues? dirk grunwald univ. of illinois grunwald@m.cs.uiuc.edu
rlk@think.COM (Robert Krawitz) (10/12/87)
In article <26900007@uiucdcsm> grunwald@uiucdcsm.cs.uiuc.edu writes:
]
...updates don't always happen on suns
]
]I suspect some threshold for gathering & batching updates to the display
]server. Any clues?
Nope. It's a kernel bug, in that SIGIO's don't get sent properly on
sockets. The display code itself uses SIGIO in various nefarious
ways, and these apparently don't get fired properly.
Fixed in all 4.3 type systems I know of.
BTW, does anyone else using X need asynchronous I/O? GNU Emacs does
to make C-g work (this is an asynchronous interrupt) and the display
code uses it for efficiency (it waits a few seconds for input before
redisplaying, so it has to listen for that much time while sleeping;
this is what I believe causes the redisplay problem). Ralph Swick and
I started to discuss this issue last year but we never got very far...
cca >>>>>>>>>> |
harvard >>>>>> |
bloom-beacon > |think!rlk Robert Krawitz <rlk@think.com>
rutgers >>>>>> |
ihnp4 >>>>>>>> .weiser.pa@XEROX.COM (10/14/87)
"Everyone could benefit by a different OS kernel architecture with a Un*x emulation layer over the native kernel interface. Is anyone willing to sponsor it?" Sounds a bit like Mach. -mark