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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [NVC1] [BISECTED] Monitor on Display port shows distortions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67628#c25">Comment # 25</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [NVC1] [BISECTED] Monitor on Display port shows distortions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67628">bug 67628</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=67628#c24">comment #24</a>)
<span class="quote">> It looks like that function is in
> drivers/gpu/drm/nouveau/core/engine/disp/dport.c, but I can't figure out how
> it should be modified to set the lane count.</span >
Change
dp->link_nr = dp->dpcd[2] & DPCD_RC02_MAX_LANE_COUNT;
while ((dp->link_nr >> 1) * link_bw[0] > datarate)
dp->link_nr >>= 1;
To
dp->link_nr = 4;</pre>
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