Julien Heyman wrote:
> Some good news from my side :
> I did the same on my EPIA box (added Option "NoAccel" in the Device section
> referring to the Trident video driver) and since then the latency test works
> like a charm. Zero overrun, and a stable max value (around 50 microseconds),
> even when I launch multiple heavy applications at the same time.
> Display performance has obviously taken a bit hit, but this is not my main
> concern for now.
> Thanks for the tip, there is no way I would have figured that one out by
> myself ;)
Maybe this tip deserves an entry in the TROUBLESHOOTING file?
--
Gilles Chanteperdrix.
Index: TROUBLESHOOTING
===================================================================
--- TROUBLESHOOTING (revision 1403)
+++ TROUBLESHOOTING (working copy)
@@ -218,6 +218,17 @@
______________________________________________________________________
+Q: I am seeing high latency spots when running under X-window, what
+ can I do?
+
+A: Try disabling hardware acceleration in the X-window server
+ configuration file; in the "Device" section of /etc/X11/XF86Config-4,
+ add the following line:
+
+ Option "NoAccel"
+
+______________________________________________________________________
+
Q: Xenomai HAL's initialization fails with error: -1 no such device
A: Dumping the kernel message log using "dmesg" will likely give you
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