Public bug reported:
Every time I adjust my laptop's screen brightness using the dedicated
brightness keys, there is a substantial delay between when I press the
button and the screen adjusts. Sometimes it even "twitches" and
decreasing the brightness by tapping the button two times will quickly
drop the brightness all the way to the lowest setting after the delay
takes place. I've noticed the issue in the default Ubuntu session and in
my current vanilla gnome-session. It also doesn't matter which
extensions I have installed. The keys work flawlessly in Windows so it
isn't a hardware issue. I have been meaning to report this for a while
and have just never gotten around to it until just now.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: xorg 1:7.7+19ubuntu12
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: GNOME
Date: Thu Nov 7 14:37:43 2019
DistUpgraded: 2019-10-21 20:16:37,104 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: eoan
DistroVariant: ubuntu
DkmsStatus: nvidia, 435.21, 5.3.0-19-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Huawei Technologies Co., Ltd. UHD Graphics 620 [19e5:3e04]
Subsystem: Huawei Technologies Co., Ltd. GP108M [GeForce MX150] [19e5:3e04]
InstallationDate: Installed on 2019-09-08 (59 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 05c8:03c0 Cheng Uei Precision Industry Co., Ltd
(Foxlink) HD Camera
Bus 001 Device 002: ID 8087:0a2b Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HUAWEI MACH-WX9
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-19-generic
root=UUID=75fe2138-1abd-47b2-a73f-83280ff782ff ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to eoan on 2019-10-22 (16 days ago)
dmi.bios.date: 03/15/2019
dmi.bios.vendor: HUAWEI
dmi.bios.version: 1.28
dmi.board.name: MACH-WX9-PCB
dmi.board.vendor: HUAWEI
dmi.board.version: M14
dmi.chassis.type: 10
dmi.chassis.vendor: HUAWEI
dmi.chassis.version: M14
dmi.modalias:
dmi:bvnHUAWEI:bvr1.28:bd03/15/2019:svnHUAWEI:pnMACH-WX9:pvrM14:rvnHUAWEI:rnMACH-WX9-PCB:rvrM14:cvnHUAWEI:ct10:cvrM14:
dmi.product.family: MateBook X
dmi.product.name: MACH-WX9
dmi.product.sku: C128
dmi.product.version: M14
dmi.sys.vendor: HUAWEI
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 19.2.1-1ubuntu1
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
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1851715
Title:
Screen brightness adjustment delay
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1851715/+subscriptions
_______________________________________________
Mailing list: https://launchpad.net/~ubuntu-x-swat
Post to : ubuntu-x-swat@lists.launchpad.net
Unsubscribe : https://launchpad.net/~ubuntu-x-swat
More help : https://help.launchpad.net/ListHelp
