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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - machine hangs after modprobe i915 modeset=1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112195">112195</a>
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<th>Summary</th>
<td>machine hangs after modprobe i915 modeset=1
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>not set
</td>
</tr>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pked01@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=145870" name="attach_145870" title="dmesg+logs from netconsole">attachment 145870</a> <a href="attachment.cgi?id=145870&action=edit" title="dmesg+logs from netconsole">[details]</a></span>
dmesg+logs from netconsole
Hello
Steps to reproduce the issue: the screen becomes black and machine hangs after
sequence:
rmmod i915
modprobe i915 modeset=1
How often: every time
system architecture: x86_64
kernel version: 5.4.0-rc4 from drm-tip: commit
90d6ad2cbeadd27e867df4e649d61f14b4ac4b77
Linux distribution: Debian 10
Machine or mother board model: Dell Inspiron 3552
Display connector: build in screen
lspci -v -n:
00:02.0 0300: 8086:22b1 (rev 35) (prog-if 00 [VGA controller])
Subsystem: 1028:06ac
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at 90000000 (64-bit, non-prefetchable) [size=16M]
Memory at 80000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [d0] Power Management version 2
Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [b0] Vendor Specific Information: Len=07 <?>
Kernel modules: i915
I have to boot with i915.modeset=0. In other case machine hangs during startup
process.
I can reproduce this situation with rmmod i915, and then modprobe i915
modeset=1.
Could you please help me? Thank you.</pre>
</div>
</p>
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