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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Failure to recognize DisplayPort signal"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106191">106191</a>
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<th>Summary</th>
<td>Failure to recognize DisplayPort signal
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>major
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>francois.jacques@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=139004" name="attach_139004" title="callstack from DRM/radeon">attachment 139004</a> <a href="attachment.cgi?id=139004&action=edit" title="callstack from DRM/radeon">[details]</a></span>
callstack from DRM/radeon
DRM/radeon fails with in drm_dp_link_rate_to_bw_code
Driver fails to negotiate video resolution with DP-connected monitor, on any of
4 DP ports.
Controller can drive monitor at 2048x1080 through HDMI adapter. Straight DP
cable only works in console (low-res)
Disconnecting power cable from monitor for 5 minutes trick doesn't help ;)
Video controller: FirePro v8800 ChipID 0x6888 (see hardware.txt for details, 4
DPs)
DP monitor: Dell U2717DA
Workstation: HP xw8600
Kernel messages with backtrace: see var_log_messages_excerpt.txt
Max res supported by monitor: 1440p (see Xorg.0.log)</pre>
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