Ubuntu

Ubuntu 20.04 LTS have a low video quality, bad color management and the screen keeps tearing

Bug #1900260 reported by Flávio Vivório Salles on 2020-10-17

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Ubuntu	Expired	Undecided	Unassigned

Bug Description

Ubuntu 20.04 LTS have a low video quality, bad color management and the screen keeps tearing. I guess maybe those are part of the same problem. I thinks that there's maybe an issue with xorg on Intel graphics card or probably an issue with the Mesa driver. I don't really know. The screen keeps tearing even after I did this:

sudo mkdir /etc/X11/xorg.conf.d
sudo nano /etc/X11/xorg.conf.d/20-intel.conf

Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
   Option "TearFree" "true"
EndSection

Those are the informations I collected:

$ lspci -nn | egrep -i "3d|display|vga"
00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 620 [8086:5917] (rev 07)

Processor: Intel® Core™ i3-8130U CPU @ 2.20GHz × 4
Graphics: Mesa Intel® UHD Graphics 620 (KBL GT2)

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-51.56-generic 5.4.65
Uname: Linux 5.4.0-51-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
BootLog: Error: [Errno 13] Permissão negada: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 17 12:20:30 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:3fdf]
InstallationDate: Installed on 2020-10-14 (3 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f2:b624 Chicony Electronics Co., Ltd Integrated Camera
Bus 001 Device 003: ID 8087:0a2a Intel Corp.
Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81XM
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-51-generic root=UUID=a08ea31a-d24d-4a85-b391-c1950060f906 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/12/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: CSCN10WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40679 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad S145-15IKB
dmi.modalias: dmi:bvnLENOVO:bvrCSCN10WW:bd10/12/2019:svnLENOVO:pn81XM:pvrLenovoIdeaPadS145-15IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoIdeaPadS145-15IKB:
dmi.product.family: IdeaPad S145-15IKB
dmi.product.name: 81XM
dmi.product.sku: LENOVO_MT_81XM_BU_idea_FM_IdeaPad S145-15IKB
dmi.product.version: Lenovo IdeaPad S145-15IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1~kisak~f
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1~kisak1~f
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

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