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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - NVA8 constantly flickers when clocked to lowest pstate"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89113#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - NVA8 constantly flickers when clocked to lowest pstate"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89113">bug 89113</a>
from <span class="vcard"><a class="email" href="mailto:pierre.morrow@free.fr" title="Pierre Moreau <pierre.morrow@free.fr>"> <span class="fn">Pierre Moreau</span></a>
</span></b>
<pre>(In reply to C, Zhang from <a href="show_bug.cgi?id=89113#c0">comment #0</a>)
<span class="quote">> however, when clocking to pstate=03 i get constant flickering (maybe <5-10
> hz)</span >
Flickering at low clocks is expected and is most likely due to hardware
constraints - memory not being quick enough to deal with the additional screen,
hence no flickering at higher clock - rather than a driver bug. Look in
nvidia-settings which clocks the blob sets when you plug your external screen
in: most likely it will automatically go from level 03 to level 07 and won't go
back to 03 unless you unplug the external screen.
See "Blank monitor, flicker, snow, or other random live image corruption" at
<a href="http://nouveau.freedesktop.org/wiki/TroubleShooting/#index8h3">http://nouveau.freedesktop.org/wiki/TroubleShooting/#index8h3</a>.</pre>
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