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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73530#c52">Comment # 52</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73530">bug 73530</a>
from <span class="vcard"><a class="email" href="mailto:paulepanter@users.sourceforge.net" title="Paul Menzel <paulepanter@users.sourceforge.net>"> <span class="fn">Paul Menzel</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=93042" name="attach_93042" title="`/var/log/kern.log` from 3.13 with debug and delay patch">attachment 93042</a> <a href="attachment.cgi?id=93042&action=edit" title="`/var/log/kern.log` from 3.13 with debug and delay patch">[details]</a></span>
`/var/log/kern.log` from 3.13 with debug and delay patch
Here are the errors.
[ 297.778990] [drm:radeon_dp_link_train], Before train_cr
[ 297.794470] [drm:radeon_process_aux_ch], dp_aux_ch timeout
[ 297.796597] [drm:radeon_dp_get_link_status], link status 00 00 80 00 00
00
[ 297.796604] [drm:dp_get_adjust_train], requested signal parameters: lane
0 voltage 0.4V pre_emph 0dB
[ 297.796609] [drm:dp_get_adjust_train], using signal parameters: voltage
0.4V pre_emph 0dB
[ 297.798313] [drm:radeon_dp_get_link_status], link status 00 00 00 00 00
00
[ 297.798318] [drm:dp_get_adjust_train], requested signal parameters: lane
0 voltage 0.4V pre_emph 0dB
[ 297.798322] [drm:dp_get_adjust_train], using signal parameters: voltage
0.4V pre_emph 0dB
[ 297.800044] [drm:radeon_dp_get_link_status], link status 00 00 00 00 00
00
[ 297.800048] [drm:dp_get_adjust_train], requested signal parameters: lane
0 voltage 0.4V pre_emph 0dB
[ 297.800052] [drm:dp_get_adjust_train], using signal parameters: voltage
0.4V pre_emph 0dB
[ 297.801762] [drm:radeon_dp_get_link_status], link status 00 00 00 00 00
00
[ 297.801766] [drm:dp_get_adjust_train], requested signal parameters: lane
0 voltage 0.4V pre_emph 0dB
[ 297.801770] [drm:dp_get_adjust_train], using signal parameters: voltage
0.4V pre_emph 0dB
[ 297.803490] [drm:radeon_dp_get_link_status], link status 00 00 00 00 00
00
[ 297.803494] [drm:dp_get_adjust_train], requested signal parameters: lane
0 voltage 0.4V pre_emph 0dB
[ 297.803496] [drm:dp_get_adjust_train], using signal parameters: voltage
0.4V pre_emph 0dB
[ 297.805187] [drm:radeon_dp_get_link_status], link status 00 00 00 00 00
00
[ 297.805190] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery tried 5
times
[ 297.805194] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery failed</pre>
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