<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Xorg/Nouveau crashes with Segmentation fault when setting i7-Skylake iGPU as primary grapics device in BIOS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93932">93932</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Xorg/Nouveau crashes with Segmentation fault when setting i7-Skylake iGPU as primary grapics device in BIOS
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/nouveau
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>m.prechtl97@googlemail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=121404" name="attach_121404" title="Apport crash dump">attachment 121404</a> <a href="attachment.cgi?id=121404&action=edit" title="Apport crash dump">[details]</a></span>
Apport crash dump
Xorg/Nouveau crashes with Segmentation fault when setting i7-Skylake iGPU as
primary grapics device in BIOS
Hardware:
CPU: i7-6700k (Intel HD Graphics 530)
MB: Asus H110M2 D3
GPU: NVIDIA GeForce GTX 750ti
How to reproduce:
- Install fresh Ubuntu Gnome 15.10 (Side note, graphic issues with standard
drivers, goes away with NVIDIA drivers so no big problem there)
- Install Kernel 4.3.4
- Install Intel drivers / compile and install latest Intel drivers
- Reboot
- iGPU isn't recognized as VGA compatible card
- Reboot and set primary graphics device to 'CPU Graphics' in BIOS
--> iGPU now is recognized
--> Xorg lives for approx. 1-2 seconds and then crashes
Xorg Version: X.Org X Server 1.17.2
Excerpt from error log:
[ 9.322] (EE)
[ 9.322] (EE) Backtrace:
[ 9.322] (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x56165770c68e]
[ 9.322] (EE) 1: /usr/bin/X (0x561657558000+0x1b89f9) [0x5616577109f9]
[ 9.323] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f40fc83e000+0x352f0)
[0x7f40fc8732f0]
[ 9.323] (EE) 3: /usr/lib/xorg/modules/drivers/nouveau_drv.so
(0x7f40f87bd000+0xd74f) [0x7f40f87ca74f]
[ 9.323] (EE) 4: /usr/bin/X (PixmapShareToSlave+0x8e) [0x5616575cc94e]
[ 9.323] (EE) 5: /usr/bin/X (RRCrtcSet+0x670) [0x561657671870]
[ 9.323] (EE) 6: /usr/bin/X (ProcRRSetCrtcConfig+0x38b) [0x56165767289b]
[ 9.323] (EE) 7: /usr/bin/X (0x561657558000+0x5818f) [0x5616575b018f]
[ 9.323] (EE) 8: /usr/bin/X (0x561657558000+0x5c34b) [0x5616575b434b]
[ 9.323] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0)
[0x7f40fc85ea40]
[ 9.323] (EE) 10: /usr/bin/X (_start+0x29) [0x56165759e6c9]
[ 9.323] (EE)
[ 9.323] (EE) Segmentation fault at address 0x8
[ 9.323] (EE)
Fatal server error:
[ 9.323] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 9.323] (EE)
[ 9.323] (EE)</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>