On Fri, 3 Jun 2005, Burke, Rodney wrote:
I am experiencing a problem where my X Windows GUI stops automatically
updating meters and scrolling text displays.
When this problem occurs, the GUI displays will update only when the mouse
is moving or the touch screen is contacted.
The problem is corrected only if I restart XFree86.
The problem can be forced by using the 'date' command to set the time
backward, but this is unrealistic and not normally done while the
application is running. However, there are 'magical times' when this occurs
(i.e., 7:56 am Dec 23, 2004 and 00:59:22 am Feb 11, 2005). If I set the
system clock just minutes/hours prior to the 'magical time' the system will
encounter this problem when it passes through this point.
I believe I have isolated the problem to XFree86.
The windows manager and my application have been ruled out by simply
eliminating/replacing them and still getting the problem.
Also, the following hw/sw configurations have been tested:
-touch screens: dynaPro & mmmTouch
-XFree86 versions: v4.2.0, v4.3.0, & v4.4.0,
-display drivers and video chipset: vesa & ATI w/ Mach64GT, i810 w/ 845g
I am also running XVNC. When this problem occurs, XVNC is often still
happily updating meters and text displays, which reinforces the fact that
XFree86 is the root cause.
Any help is very much appreciated.
Nothing special about those "magical times" comes to mind, but it sounds like
you are running an ntpd that sets your system clock back every so often. If
so, your motherboard's clock is probably running just a tad too fast.
Marc.
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