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

> the interesting bit is that my i915 GPU is marked as card1, and not
card0 (e.g. simpledrm was loaded earlier, attached as card0 but later
unloaded?)

Yes, that's what happens.
As soon as i195 registers fb0, simpledrm is unloaded:
[ 280.175042] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device

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

Title:
[i915] Phantom "Unknown" display detected

Status in linux package in Ubuntu:
Confirmed

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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