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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [NV1F] Flickering screen on Geforece 4"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=54587#c27">Comment # 27</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [NV1F] Flickering screen on Geforece 4"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=54587">bug 54587</a>
              from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
        <pre>(In reply to <a href="show_bug.cgi?id=54587#c26">comment #26</a>)
<span class="quote">> I noticed that traffic with hard disk causes big interference! Even when
> nothing changes in the screen.</span >

This makes it really sound like you're having analog isolation issues. Does
your VGA cable have a ferrite core on it? (Here's an image of what I'm talking
about:
<a href="http://image.made-in-china.com/2f1j00cSjErnoMZtkg/VGA-Computer-Monitor-Cable-with-Ferrite-Cores-Hdb15m-Hdb15m.jpg">http://image.made-in-china.com/2f1j00cSjErnoMZtkg/VGA-Computer-Monitor-Cable-with-Ferrite-Cores-Hdb15m-Hdb15m.jpg</a>
-- the things on the cable that aren't the connector itself.)

Did you not see these issues with the nvidia binary driver? That'd be very
surprising...</pre>
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