Public bug reported:
Linux jarvis 5.12.2-051202-generic #202105071130 SMP Fri May 7 11:33:24
UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
inxi -b
CPU: Quad Core Intel Core i5-8265U (-MT MCP-)
speed/min/max: 800/400/3900 MHz Kernel: 5.12.2-051202-generic x86_64 Up: 38m
Mem: 2683.8/7831.5 MiB (34.3%) Storage: 931.51 GiB (8.3% used) Procs: 288
Shell: Bash inxi: 3.3.01
diego@jarvis:~$ inxi -b
System:
Host: jarvis Kernel: 5.12.2-051202-generic x86_64 bits: 64
Desktop: GNOME 3.38.4 Distro: Ubuntu 21.04 (Hirsute Hippo)
Machine:
Type: Laptop System: LENOVO product: 81S9 v: Lenovo IdeaPad S145-15IWL
serial: <superuser required>
Mobo: LENOVO model: LNVNB161216 v: SDK0J40679 WIN
serial: <superuser required> UEFI: LENOVO v: ASCN48WW date: 06/23/2020
Battery:
ID-1: BAT0 charge: 24.2 Wh condition: 24.2/30.0 Wh (81%)
CPU:
Info: Quad Core Intel Core i5-8265U [MT MCP] speed: 800 MHz
min/max: 400/3900 MHz
Graphics:
Device-1: Intel WhiskeyLake-U GT2 [UHD Graphics 620] driver: i915
v: kernel
Device-2: Chicony Integrated Camera type: USB driver: uvcvideo
Display: wayland server: X.Org 1.21.1.1 driver: loaded: modesetting
unloaded: fbdev,vesa resolution: 1366x768~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 620 (WHL GT2)
v: 4.6 Mesa 21.2.0-devel (git-fefd853 2021-05-07 hirsute-oibaf-ppa)
Network:
Device-1: Intel Dual Band Wireless-AC 3165 Plus Bluetooth driver: iwlwifi
Drives:
Local Storage: total: 931.51 GiB used: 77.17 GiB (8.3%)
Info:
Processes: 290 Uptime: 39m Memory: 7.65 GiB used: 2.86 GiB (37.4%)
Shell: Bash inxi: 3.3.01
The problem is related to the ACPI in the loading of the operating system, I
believe the problem is related to the brightness of the screen, because when
the error started to appear my shortcut keys to decrease / increase the
brightness of the screen stopped working.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
** Tags: kernel-bug
** Attachment added: "IMG_20210507_114701.jpg"
https://bugs.launchpad.net/bugs/1927774/+attachment/5495591/+files/IMG_20210507_114701.jpg
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https://bugs.launchpad.net/bugs/1927774
Title:
ACPI SB(screen brightness) Problem
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