[Expired for mutter (Ubuntu) because there has been no activity for 60
days.]
** Changed in: mutter (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/2067143
Title:
[i915] ‘no signal’ after monitor sleep or monitor turned off
Status in linux package in Ubuntu:
Expired
Status in mutter package in Ubuntu:
Expired
Bug description:
The problem and a workaround is well described here:
https://forums.developer.nvidia.com/t/ubuntu-20-04-no-signal-after-
monitor-sleep-or-monitor-turned-off/180056
My laptop is connected to an external monitor (Dell) via HDMI. When
the laptop is left idle for some time, the screen goes black and the
monitor reports "no signal". When I press a keyboard button or move
the mouse, the laptop screen comes on...but the monitor still receives
no signal.
Workaround 1 is to unplug and replug the HDMI cable.
Workaround 2 is to press ctrl-alt-F3 to get into a text-based console, and
then ctrl-alt-F1 or F2 to get back to graphical mode
My laptop has Intel GPU, not Nvidia, so this seems to be a problem with
Ubuntu.
I'm currently running Ubuntu 24.04 LTS
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1
Uname: Linux 6.8.0-31-generic x86_64
ApportVersion: 2.28.1-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat May 25 12:23:02 2024
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Meteor Lake-P [Intel Graphics] [8086:7d45] (rev 08)
(prog-if 00 [VGA controller])
Subsystem: Lenovo Meteor Lake-P [Intel Graphics] [17aa:231e]
InstallationDate: Installed on 2024-04-30 (25 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: LENOVO 21KCCTO1WW
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-31-generic
root=UUID=c613759c-7da4-4d83-afb2-c8423d857ed1 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/02/2024
dmi.bios.release: 1.27
dmi.bios.vendor: LENOVO
dmi.bios.version: N3YET62W (1.27 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21KCCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.21
dmi.modalias:
dmi:bvnLENOVO:bvrN3YET62W(1.27):bd04/02/2024:br1.27:efr1.21:svnLENOVO:pn21KCCTO1WW:pvrThinkPadX1CarbonGen12:rvnLENOVO:rn21KCCTO1WW:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21KC_BU_Think_FM_ThinkPadX1CarbonGen12:
dmi.product.family: ThinkPad X1 Carbon Gen 12
dmi.product.name: 21KCCTO1WW
dmi.product.sku: LENOVO_MT_21KC_BU_Think_FM_ThinkPad X1 Carbon Gen 12
dmi.product.version: ThinkPad X1 Carbon Gen 12
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.120-2build1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.0.5-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-2build1
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