Public bug reported:
Every time when I open up my lid of my laptop, and wake up my system
from sleeping,the screen will return to full brightness.Either I press
the brightness - or + button,the brightness will back to normal
immediately.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: xorg 1:7.7+19ubuntu12
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 17 00:05:56 2019
DistUpgraded: Fresh install
DistroCodename: eoan
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series /
Radeon Vega Mobile Series] [1002:15dd] (rev c4) (prog-if 00 [VGA controller])
Subsystem: Lenovo Raven Ridge [Radeon Vega Series / Radeon Vega Mobile
Series] [17aa:380c]
InstallationDate: Installed on 2019-09-28 (18 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Beta amd64 (20190926.1)
MachineType: LENOVO 81BR
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-18-generic
root=UUID=d149e099-9234-443a-8b59-fa39ca1a8631 ro idle=nomwait
ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/04/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6KCN30WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0L77769 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13ARR
dmi.modalias:
dmi:bvnLENOVO:bvr6KCN30WW:bd07/04/2018:svnLENOVO:pn81BR:pvrLenovoideapad720S-13ARR:rvnLENOVO:rnLNVNB161216:rvrSDK0L77769WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13ARR:
dmi.product.family: ideapad 720S-13ARR
dmi.product.name: 81BR
dmi.product.sku: LENOVO_MT_81BR_BU_idea_FM_ideapad 720S-13ARR
dmi.product.version: Lenovo ideapad 720S-13ARR
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20190815-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug eoan ubuntu
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https://bugs.launchpad.net/bugs/1848360
Title:
Screen alway returns to full brightness after wake up
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