Public bug reported:
This is a weird one. Shortly after moving to 17.10, my laptop has
started dimming its internal screen to minimum brightness at the start
of initramfs execution. shortly thereafter it restores it to normal
brightness, but that only happens *after* typing in encrypted filesystem
passwords, so the password dialogues are practically invisible. Not sure
why its doing this, but whatever's restoring the brightness should do it
before prompting for filesystem mounting so these prompts are actually
visible.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-generic 4.13.0.19.20
ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
Uname: Linux 4.13.0-19-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tessa 17026 F.... pulseaudio
/dev/snd/controlC1: tessa 17026 F.... pulseaudio
CurrentDesktop: GNOME
Date: Fri Dec 15 13:44:02 2017
InstallationDate: Installed on 2016-07-08 (524 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Apple Inc. MacBookPro11,4
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-19-generic.efi.signed
root=ZFS=rpool/root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.13.0-19-generic N/A
linux-backports-modules-4.13.0-19-generic N/A
linux-firmware 1.169.1
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2017-10-19 (57 days ago)
dmi.bios.date: 08/08/2017
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP114.88Z.0177.B00.1708080033
dmi.board.name: Mac-06F11FD93F0323C5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro11,4
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-06F11FD93F0323C5
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP114.88Z.0177.B00.1708080033:bd08/08/2017:svnAppleInc.:pnMacBookPro11,4:pvr1.0:rvnAppleInc.:rnMac-06F11FD93F0323C5:rvrMacBookPro11,4:cvnAppleInc.:ct9:cvrMac-06F11FD93F0323C5:
dmi.product.family: MacBook Pro
dmi.product.name: MacBookPro11,4
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug artful wayland-session
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https://bugs.launchpad.net/bugs/1738490
Title:
current boot config dims screen during initramfs
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