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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99779">99779</a>
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<th>Summary</th>
<td>Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>critical
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>brookskd@gmail.com
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=129527" name="attach_129527" title="dmesg 4.9.8">attachment 129527</a> <a href="attachment.cgi?id=129527&action=edit" title="dmesg 4.9.8">[details]</a></span>
dmesg 4.9.8
If I shut my laptop lit it suspends, then when opening the lid and resuming I
get a blank screen and am unable to get the display to work again unless I
reboot. I can ssh into computer and I get displayport link errors in the
attached dmesg log.
This issue does not occur if I use the radeon kernel module instead of amdgpu.
This seems very similar to <a class="bz_bug_link
bz_status_NEW "
title="NEW - Lenovo ThinkPad E455 (Kaveri A10-7300): Blank built-in screen with radeon kms driver"
href="show_bug.cgi?id=90320">bug 90320</a> but I filed this one because it is amdgpu
not radeon:
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Lenovo ThinkPad E455 (Kaveri A10-7300): Blank built-in screen with radeon kms driver"
href="show_bug.cgi?id=90320">https://bugs.freedesktop.org/show_bug.cgi?id=90320</a>
I've also attached the Xorg.0.log but it does not have any errors indicated.
It indicates successful exit because I stopped the server over ssh and tried to
restart gdm a few times which is why there are multiple displayport link status
failed messages in dmesg.</pre>
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