Xorg problem with 5.3

Godwin Stewart gstewart at bonivet.net
Mon Apr 4 06:38:01 PDT 2005

Hash: SHA1

On Mon, 4 Apr 2005 14:15:47 +0100, Yann Golanski <yann at kierun.org> wrote:

> I am having an issue with Xorg under FreeBSD 5.3:  The screen has lots
> of small wave-like patterns descending along the screen whenever the CPU
> does any work.  My monitor is a Viglen CRT.

I think this is more likely to be an issue with the graphics adapter than
with the monitor. The monitor has no way of knowing if the CPU is under
load or not and therefore cannot react to it. The graphics adapter, OTOH,
could be experiencing EMI from the CPU fan as it steps up power with the
CPU heating up, or maybe just reacting to the extra heat from the CPU if
it's near enough. Or maybe the shielding in the Sub-D connected to
the monitor is bust.

Either way round we don't have enough information to go on here, but I
expect the problem is not the monitor in any case.

> Versions are: xorg-6.8.2 on FreeBSD 5.3-RELEASE.

More to the point, what type of CPU is it, what kind of graphics card on
what bus, and how far away from the CPU?

- -- 
G. Stewart - gstewart at bonivet.net

There are only 10 kinds of people in the world: Those who understand
binary, and those who don't.
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