** Tags added: regression-update ** Summary changed:
- Night Light setting only working for a few seconds then It's gone + [i915] Night Light setting only working for a few seconds then It's gone -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1916763 Title: [i915] Night Light setting only working for a few seconds then It's gone Status in linux package in Ubuntu: Confirmed Bug description: 1. Ubuntu info is listed blow: ``` Description: Ubuntu 20.04.2 LTS Release: 20.04 ``` 2. the `gnome-control-center` package version is ``` gnome-control-center: 已安装：1:3.36.5-0ubuntu1 候选： 1:3.36.5-0ubuntu1 版本列表： *** 1:3.36.5-0ubuntu1 500 500 http://mirrors.tuna.tsinghua.edu.cn/ubuntu focal-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:3.36.1-1ubuntu5 500 500 http://mirrors.tuna.tsinghua.edu.cn/ubuntu focal/main amd64 Packages ``` 3. I expect when the Night Light settings are set, then it should be working as specified. 4. Instead the Night Light settings only work for a few seconds, and then it went back to the original display state as if Night Light is not enabled. This only happens when I'm booting with kernel 5.4.0-66-generic, and everything works like a charm when booting with kernel 5.4.0-65-generic. Please help looking into this. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-66.74-generic 5.4.86 Uname: Linux 5.4.0-66-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 BootLog: Error: [Errno 13] 权限不够: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Wed Feb 24 22:43:23 2021 DistUpgraded: 2020-08-01 23:39:12,134 DEBUG refresh of snap gtk-common-themes succeeded DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller [17aa:5021] Subsystem: Lenovo Radeon R7 M260 [17aa:5021] InstallationDate: Installed on 2019-11-04 (478 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) MachineType: LENOVO 20EH0001CD ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-66-generic root=UUID=e96f932e-c0e2-496e-b84d-653876b6b3ea ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to focal on 2020-08-01 (206 days ago) dmi.bios.date: 11/20/2015 dmi.bios.vendor: LENOVO dmi.bios.version: J5ET50WW (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20EH0001CD dmi.board.vendor: LENOVO dmi.board.version: SDK0E50518 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJ5ET50WW(1.21):bd11/20/2015:svnLENOVO:pn20EH0001CD:pvrThinkPadE450c:rvnLENOVO:rn20EH0001CD:rvrSDK0E50518STD:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad E450c dmi.product.name: 20EH0001CD dmi.product.sku: LENOVO_MT_20EH_BU_Think_FM_ThinkPad E450c dmi.product.version: ThinkPad E450c dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1916763/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
