On Saturday 18 August 2001 09:36, Herman Bruyninckx wrote:
> On Fri, 17 Aug 2001, Dan Peters wrote:
>
> [...]
>
> > I believe it all has to do somehow with interrupting X calls. Do
> > you have any experience with running X under rtlinux? I have work
> > with X many times in a non RT environment and have not had these
> > problems. Is there a better alternative to running X for doing
> > graphical stuff under RT linux.
>
> Don't use X!
Or make sure you've got a properly configured X server and a video card
with a decent driver... Some work, but shouldn't by a major issue if you
need RTLinux on the machine in the first place. (You don't run RTLinux on
the average workstation anyway.)
> Unless you know exactly what your X driver is doing...
> The polygons-rendered-per-second race of card manufacturers makes many
> drivers behave _very_ unfriendly towards other processes (disabling
> interrupts for too long etc.)
Yeah. Some of this can be fixed by configuring the server properly,
though. (AFAIK, very few cases are actually hardware problems. Even this
debated PCI bus stall is a driver bug - some drivers allow the card to
block the bus, rather than checking the command FIFO status before
writing.)
//David Olofson --- Programmer, Reologica Instruments AB
.- M A I A -------------------------------------------------.
| Multimedia Application Integration Architecture |
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.- David Olofson -------------------------------------------.
| Audio Hacker - Open Source Advocate - Singer - Songwriter |
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