Messages in this thread | | | Date | Mon, 16 Jul 2001 15:25:29 -0400 (EDT) | From | George <> | Subject | Re: PROBLEM:blinking screen in XFree4.x ! |
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On Mon, 16 Jul 2001, Jeffrey W. Baker wrote:
>On Mon, 16 Jul 2001, Marko Rebrina wrote: > >> Hi, >> I have problem with XFree4.x(current 4.1) when I have large file transfer(~1GB) >> then screen in X start blinking(black screen),console works fine! >> Restarting Xe not resolving problem! No message in log ! > >I used to have this problem as well. It is due to massive clock skew on >certain motherboads (ahem). To "fix" this, simply display DPMS in your X >server: xset -dpms
Running the XFree86 config program from XFree86-xf86cfg-4.0.3-5.i386.rpm (RedHat 7.1) _causes_ the massive clock skew on my Tyan Tomcat IV (i430HX) Pentium 233/MMX motherboard w/ S3 Virge. My 2.2.19 kernel prints the "clock skew detected -- probably a VIA 686a" message and resets the clock. The NTP daemon afterward can't correct the clock fast enough if the kernel doesn't fix it. I can tell when it happens because the GPM mouse cursor moves very jerky. If I don't run that program, no clock skew ever. XFree86 4.0 is fine otherwise but since I can't screenshot with my BTTV card, I run 3.3.6.
So maybe not always hardware, sometimes just suid apps stomping on what they shouldn't.
-George Greer
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