Fn keys, Video issue, Battery limiter

[Grifouille]

Hello,

I am currently migrating my computer from Windows 10 to Linux Mint Mate 19.3. There are 3 things I can't manage to fix.

1) When I scroll through the web pages, there are like lines that are shifted, which also happens when I watch a movie in the browser. On the other hand as soon as the page / image is static, everything is well displayed.

2) I can't use the Fn keys on my laptop to adjust the screen brightness. The Fn keys for brightness do not work. I spent more than 2 hours on google to find and test a solution. Without success... For information I also tested "Brightness Controller" but it's a disaster (maybe a conflict with Redshift program)!

3) How can I limit my Battery to 90% of total refill ? I didn't found something in the Bios (maybe I have to update the Bios)

Do you have any advice for me ?
Thank you in advance and greetings from Crans-Montana (Switzerland)

Grifouille

PS: Sorry my English is poor. But French / German are very good
PS2: Linux knowledge are basic (I know command line, permissions, compiling...)

System:
Host: User-HP-250-G7 Kernel: 5.4.0-40-generic x86_64 bits: 64
compiler: gcc v: 7.5.0 Desktop: MATE 1.22.2 info: mate-panel
wm: marco 1.22.3 dm: LightDM 1.26.0 Distro: Linux Mint 19.3 Tricia
base: Ubuntu 18.04 bionic
Machine:
Type: Laptop System: HP product: HP 250 G7 Notebook PC
v: Type1ProductConfigId serial: <filter> Chassis: type: 10
serial: <filter>
Mobo: HP model: 8532 v: 70.31 serial: <filter> UEFI: Insyde v: F.21
date: 07/25/2019
Battery:
ID-1: BAT1 charge: 38.7 Wh condition: 38.7/41.9 Wh (92%) volts: 13.1/11.6
model: Hewlett-Packard PABAS0241231 type: Li-ion serial: <filter>
status: Unknown
CPU:
Topology: Quad Core model: Intel Core i5-8265U bits: 64 type: MT MCP
arch: Kaby Lake rev: B L2 cache: 6144 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 28800
Speed: 600 MHz min/max: 400/3900 MHz Core speeds (MHz): 1: 600 2: 600
3: 600 4: 601 5: 600 6: 600 7: 600 8: 600
Graphics:
Device-1: Intel vendor: Hewlett-Packard driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:3ea0
Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa
compositor: marco v: 1.22.3 resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (WHL GT2)
v: 4.6 Mesa 20.0.8 compat-v: 3.0 direct render: Yes
Audio:
Device-1: Intel vendor: Hewlett-Packard driver: snd_hda_intel v: kernel
bus ID: 00:1f.3 chip ID: 8086:9dc8
Sound Server: ALSA v: k5.4.0-40-generic
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Hewlett-Packard driver: r8169 v: kernel port: 4000 bus ID: 01:00.0
chip ID: 10ec:8168
IF: eno1 state: down mac: <filter>
Device-2: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Hewlett-Packard driver: rtl8821ce v: v5.5.2.1_35598.20191029
port: 3000 bus ID: 02:00.0 chip ID: 10ec:c821
IF: wlo1 state: up mac: <filter>
Drives:
Local Storage: total: 238.47 GiB used: 152.18 GiB (63.8%)
ID-1: /dev/nvme0n1 vendor: Toshiba model: KBG30ZMV256G size: 238.47 GiB
speed: 15.8 Gb/s lanes: 2 serial: <filter> rev: ADHA0102 scheme: GPT
RAID:
Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci
v: 3.0 port: 5060 bus ID: 00:17.0 chip ID: 8086.282a rev: 30
Partition:
ID-1: / size: 27.64 GiB used: 22.31 GiB (80.7%) fs: ext4
dev: /dev/nvme0n1p5
Sensors:
System Temperatures: cpu: 46.0 C mobo: N/A
Fan Speeds (RPM): N/A
Repos:
No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/apandada1-brightness-controller-bionic.list
1: deb http://ppa.launchpad.net/apandada1/brig ... ler/ubuntu bionic main
Active apt repos in: /etc/apt/sources.list.d/google-chrome.list
1: deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
Active apt repos in: /etc/apt/sources.list.d/morphis-anbox-support-bionic.list
1: deb http://ppa.launchpad.net/morphis/anbox-support/ubuntu bionic main
Active apt repos in: /etc/apt/sources.list.d/nathan-renniewaldock-flux-bionic.list
1: deb http://ppa.launchpad.net/nathan-renniew ... lux/ubuntu bionic main
Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
1: deb http://mirrors.evowise.com/linuxmint/packages tricia main upstream import backport
2: deb http://mirror.init7.net/ubuntu bionic main restricted universe multiverse
3: deb http://mirror.init7.net/ubuntu bionic-updates main restricted universe multiverse
4: deb http://mirror.init7.net/ubuntu bionic-backports main restricted universe multiverse
5: deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
6: deb http://archive.canonical.com/ubuntu/ bionic partner
Active apt repos in: /etc/apt/sources.list.d/pjbroad-ppa-bionic.list
1: deb http://ppa.launchpad.net/pjbroad/ppa/ubuntu bionic main
Active apt repos in: /etc/apt/sources.list.d/teamviewer.list
1: deb http://linux.teamviewer.com/deb stable main
Info:
Processes: 247 Uptime: 7h 00m Memory: 7.66 GiB used: 2.07 GiB (27.0%)
Init: systemd v: 237 runlevel: 5 Compilers: gcc: 7.5.0 alt: 7 Shell: bash
v: 4.4.20 running in: mate-terminal inxi: 3.0.32

[Grifouille]

Nobody have clue ?