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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 - Black/blank screen unless i915.modeset=0 is set"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105549">105549</a>
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<th>Summary</th>
<td>Black/blank screen unless i915.modeset=0 is set
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>critical
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>sewkokot@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=138152" name="attach_138152" title="lspci -v, dmesg, lsmod, mkinitcpio -M">attachment 138152</a> <a href="attachment.cgi?id=138152&action=edit" title="lspci -v, dmesg, lsmod, mkinitcpio -M">[details]</a></span>
lspci -v, dmesg, lsmod, mkinitcpio -M
Dell Latitude 5490
8th gen i7-8650U intel iGPU HD 620 (i915)
dGPU geforce MX130 (former 940MX) Maxwell architecture
The problem is on both Debian Sid and Arch Linux (kernels 4.15)
To summarize the problem:
1. Without modesetting disabled the system does not reach a console login. The
result is that for a quater of second I see the screen with some messages. Then
the screen becomes black, I mean the there is a black light on the screen but I
can do nothing (Ctrl-Alt-F2 does not work). I cannot login even blindly to
power off. Neither I have any records in the journal (dmesg) - simply as if the
booting process is non-existing in logs. The final line before the screen goes
black is "fb: switching to inteldrmfb from EFI VGA"
2. While with modesetting the journal log is shown below. I can login. From the
journal I can see that EFI VGA frame buffer is used: "[ 5.722465] fb0: EFI
VGA frame buffer device" instead of inteldrmfb.
Below I include additional information from the system when i915.modeset=0 is
passed to kernel parameters.
I could provide more information if needed.</pre>
</div>
</p>
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