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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 --- - Random blank screen after login with Haswell 4400"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70145">70145</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>Random blank screen after login with Haswell 4400
</td>
</tr>
<tr>
<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>
<tr>
<th>Reporter</th>
<td>drewvs@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>There are odd black/blank/gray screen issues that are occurring with the
xf86-video-intel driver in the 3.11.1 kernel.
I've updated to the latest driver with the same result.
Sometimes, on a cold-boot the login manager (gdm3 in this case) will properly
show but after entering credentials the screen will either produce a black
screen or gray screen with thick black lines.
This can also happen (less often) after typing a LUKS encryption passphrase. It
attempts to switch from a lower resolution display to a higher (3200x1800) in
this laptops case. When the resolution switches, it fails and has a permanent
black screen. I can tell the system has successfully booted at least to the
desktop as the FN sound keys function.
This will happen 50% of the time. About 10% of the time switching to a virtual
terminal and back will fix the issue and display the desktop as expected.
This also happens randomly after a suspend/resume cycle.
Xorg log coming soon.
I am not passing any relevant kernel parameters at boot but when using the
nomodeset option, there are no issues present.
3.12 kernel/driver was compiled and the issue is still present.
lscpi:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated
Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Device 0a0c (rev 09)
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev
04)
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev
04)
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 1
(rev e4)
00:1c.2 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3
(rev e4)
00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4
(rev e4)
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1
[AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
PCI Express Gigabit Ethernet Controller (rev 0c)
Please let me know if additional information is needed and I will provide it
promptly</pre>
</div>
</p>
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