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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW Bisected] Screen flickers when it changes to console from X"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83130">83130</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW Bisected] Screen flickers when it changes to console from X
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lei.a.liu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>==System Environment==
--------------------------
Regression: Yes. Good commit: 3a5f87c286515c54ff5c52c3e64d0c522b7570c0
drm: fix plane rotation when restoring fbdev configuration
Non-working platforms: Broadwell
==kernel==
--------------------------
-nightly: c30b73ce7c138b5fd671ed3a7e1301bd273fd661 (fails)
drm-intel-nightly: 2014y-08m-26d-16h-36m-49s integration manifest
-queued: c1f7ab8c9a7b09f4ed6499904298ddf1c67b1764(fails)
drm/i915/bdw: Do not initialize PPGTT in the legacy way for execlists
-fixes: a4bf214ffc721f3b82321714d614be937b982a94 (works)
drm/i915: Move intel_ddi_set_vc_payload_alloc(false) to
haswell_crtc_disable()
==Bug detailed description==
-----------------------------
Screen starts to flicker after I start X or back to console from X. I will
attach a Video later.
==Reproduce steps==
----------------------------
1. start X
or shatr X and chvt 1
==Bisect results==
----------------------------
Bisect shows: 3497c2a466ef2c72305180df5a09955ba95550cd is the first bad commit.
commit 3497c2a466ef2c72305180df5a09955ba95550cd
Author: Deepak S <<a href="mailto:deepak.s@intel.com">deepak.s@intel.com</a>>
AuthorDate: Mon Aug 18 10:35:27 2014 -0700
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Tue Aug 26 12:54:10 2014 +0200
drm/i915: Bring UP Power Wells before disabling RC6.
We need do forcewake before Disabling RC6, This is what the BIOS
expects while going into suspend.
v2: updated commit message. (Daniel)</pre>
</div>
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