I just encountered the bug again. When I turned on the monitor the login
screen is at 1024x768 and the system log shows it is using Wayland:
Jun 15 14:03:49 nine gnome-shell[1225]: Running GNOME Shell (using
mutter 42.1) as a Wayland display server
Although the monitor was plugged in when the system booted, the kernel
failed to get a working connection:
Jun 15 14:03:50 nine kernel: i915 0000:00:02.0: [drm] *ERROR* Link
Training Unsuccessful
That's _after_ the login screen had started. So the bug is occurring
when the kernel can detect a monitor (hence bug 1919400 doesn't happen)
but can't establish a reliable display signal.
For me, the fix was just to log in as usual. Then the correct screen
resolution is detected and used.
If the problem persists for you after logging in then it's a sign you
probably need to replug or replace the monitor data cable. I don't see
any real bug here unless it's the kernel failing to train when it
shouldn't fail.
** Package changed: xorg-server (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Incomplete => Opinion
** No longer affects: mutter (Ubuntu)
** Summary changed:
- Desktop resolution was set incorrectly (1024x768) until I booted up the PC
AFTER turning on the monitor
+ [i915] Desktop resolution was set incorrectly (1024x768) until I booted up
the PC AFTER turning on the monitor
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https://bugs.launchpad.net/bugs/1976567
Title:
[i915] Desktop resolution was set incorrectly (1024x768) until I
booted up the PC AFTER turning on the monitor
Status in linux package in Ubuntu:
Opinion
Bug description:
Whenever I boot up my PC, I turn on the monitor as well. When this
happens, the Intel Mesa graphics loads, and my screen ends up being
small with large pixelated icons. The resolution was capped at
1024x768. Only after I reboot my PC multiple times without changing
the display settings did the resolution increase to 1680x1050, the
correct resolution.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.15.0-33.34-generic 5.15.30
Uname: Linux 5.15.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Jun 1 21:07:53 2022
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] 2nd Generation Core Processor Family
Integrated Graphics Controller [1025:0589]
InstallationDate: Installed on 2022-05-22 (10 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64
(20220419)
MachineType: Gateway DX4860
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-33-generic
root=UUID=804dde02-f626-4837-9802-fcd2a3da1eeb ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/01/2011
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P02-A1
dmi.board.name: IPISB-VR
dmi.board.vendor: Gateway
dmi.board.version: 1.01
dmi.chassis.type: 3
dmi.chassis.vendor: Gateway
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP02-A1:bd08/01/2011:br4.6:svnGateway:pnDX4860:pvr:rvnGateway:rnIPISB-VR:rvr1.01:cvnGateway:ct3:cvr:sku:
dmi.product.family: Gateway Desktop
dmi.product.name: DX4860
dmi.sys.vendor: Gateway
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-2build1
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