[Bug 2084046] Re: [i915] Phantom "Unknown" display detected

I'm not sure #7 is the same issue because it seems to jump to
conclusions and describes a black TTY problem which I don't have.

As for testing the idea in comment #6, my kernel log shows simpledrm
creating /dev/fb0 around 1.4s, and i915 creating /dev/fb1 around 8.9s.
Both /dev/fb[01] still exist after boot. So even if #7 is not well
described, we may be experiencing the same root cause.

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https://bugs.launchpad.net/bugs/2084046

Title:
[i915] Phantom "Unknown" display detected

Status in linux package in Ubuntu:
New

Bug description:
Settings is reporting a second display ("Unknown") is connected. This
is on a laptop which has nothing plugged in and only an Intel GPU.

It appears the problem is once again (like bug 2060268) SimpleDRM:

Node: /dev/dri/card0
├───Driver: simpledrm (DRM driver for simple-framebuffer platform devices) version 1.0.0 (0)
--
Node: /dev/dri/card1
├───Driver: i915 (Intel Graphics) version 1.6.0 (0)

Linux version 6.11.0-8-generic (buildd@lcy02-amd64-042) (x86_64-linux-
gnu-gcc-14 (Ubuntu 14.2.0-4ubuntu2) 14.2.0, GNU ld (GNU Binutils for
Ubuntu) 2.43.1) #8-Ubuntu SMP PREEMPT_DYNAMIC Mon Sep 16 13:41:20 UTC
2024 (Ubuntu 6.11.0-8.8-generic 6.11.0)

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