** Tags added: ubuntu-certified -- 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/1801359
Title: Notebook lid blank after booting with lid closed Status in linux package in Ubuntu: Triaged Bug description: When using a external monitor on a Dell Precision 5520 Notebook and booting with lid closed ... 1. the lid stays blank when later opening it (happens on Ubuntu 18.10 and 18.04) 2. and login using a Xorg is not possible (a login-loop happens on Ubuntu 18.10) Digging in sysfs I saw that /sys/class/backlight/intel_backlight/bl_power 0 (and manually changable) when booted with lid open but 4 (and unchangable) when booted with lid closed. Other (eg. power) entires under /sys/class/backlight/intel_backlight can't be changed or don't help and changing /sys/class/backlight/intel_backlight/brightness don't help as well. There is neither a difference in dmesg output (except some additional "enabling Extended Tags" when booting with lid open) nor any difference in modules loaded. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-10-generic 4.18.0-10.11 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mm 1720 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Nov 2 13:38:44 2018 InstallationDate: Installed on 2018-10-19 (13 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 04f3:24a1 Elan Microelectronics Corp. Bus 001 Device 005: ID 0c45:6713 Microdia Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. Precision 5520 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/vmlinuz root=UUID=31b59337-0e21-48d0-bede-155475fc0c7b ro rootflags=subvol=@ rootwait vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.18.0-10-generic N/A linux-backports-modules-4.18.0-10-generic N/A linux-firmware 1.175 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/02/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.12.1 dmi.board.name: 0R6JFH dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.12.1:bd10/02/2018:svnDellInc.:pnPrecision5520:pvr:rvnDellInc.:rn0R6JFH:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 5520 dmi.product.sku: 07BF dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801359/+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
