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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 --- - screen blank on S3 resume on HP Mini Atom N270 Intel Mobile 945GSE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72782">72782</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>screen blank on S3 resume on HP Mini Atom N270 Intel Mobile 945GSE
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>colin.king@canonical.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86 (IA32)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>There is a S3 resume issue that affects HP Mini Atom N270 with Intel
Mobile 945GSE on Linux 3.9.0 upwards.
Device:
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile
945GSE Express Integrated Graphics Controller [8086:27ae] (rev 03)
(prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:361a]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at dc80 [size=8]
Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Issue: On S3 resume screen is blank. I've tracked this down to 2 patches:
1. 24576d23976746cb52e7700c4cadbf4bc1bc3472
drm/i915: enable VT switchless resume v3
This commit stops the screen from turning back on. Without the patch the
screen resumes back to on, however it is filled with random vertical lines.
2. fa55583797d12b10928a1813f3dcf066637caf5e
drm/i915: fixup the plane->pipe fixup code
I have to manually revert this. If I don't I get the random vertical
lines on resume.</pre>
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</p>
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