Intel screen tearing - Ubuntu 18.04
I have a bad screen tearing issue with 18.04. Config posted below. I'm not sure how to fix this issue as I've googled it several times and there doesn't seem to be much information relating to 18.04 on this issue. Thanks in advance for your answers.
ubuntu@ubuntu:/etc$ inxi -F
System: Host: ubuntu Kernel: 4.15.0-20-generic x86_64 bits: 64 Desktop: Gnome 3.28.1 Distro: Ubuntu 18.04 LTS
Machine: Device: laptop System: HP product: HP ProBook 640 G2 serial: N/A
Mobo: HP model: 80FD v: KBC Version 22.64 serial: N/A UEFI: HP v: N76 Ver. 01.06 date: 11/01/2016
Battery BAT0: charge: 17.9 Wh 42.8% condition: 41.9/41.9 Wh (100%)
CPU: Dual core Intel Core i5-6200U (-MT-MCP-) cache: 3072 KB
clock speeds: max: 2800 MHz 1: 1292 MHz 2: 1131 MHz 3: 1061 MHz 4: 1070 MHz
Graphics: Card: Intel HD Graphics 520
Display Server: x11 (X.Org 1.19.6 ) driver: i915 Resolution: [email protected]
OpenGL: renderer: Mesa DRI Intel HD Graphics 520 (Skylake GT2) version: 4.5 Mesa 18.0.0-rc5
Audio: Card Intel Sunrise Point-LP HD Audio driver: snd_hda_intel Sound: ALSA v: k4.15.0-20-generic
Network: Card-1: Intel Ethernet Connection I219-V driver: e1000e
IF: enp0s31f6 state: down mac: 40:b0:34:13:1c:f0
Card-2: Intel Wireless 8260 driver: iwlwifi
IF: wlp2s0 state: up mac: 34:f3:9a:dd:f7:02
Drives: HDD Total Size: 515.8GB (1.2% used)
ID-1: /dev/sda model: HGST_HTS725050A7 size: 500.1GB
ID-2: USB /dev/sdb model: Cruzer_Switch size: 15.7GB
Partition: ID-1: / size: 3.8G used: 1.3G (37%) fs: overlay dev: N/A
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 38.5C mobo: 0.0C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 220 Uptime: 1:04 Memory: 2131.1/7636.1MB Client: Shell (bash) inxi: 2.3.56
Solution 1:
Do
sudo mkdir -p /etc/X11/xorg.conf.d/
sudo vim /etc/X11/xorg.conf.d/20-intel.conf
Then paste this to the file
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
EndSection
Reboot
Source
Solution 2:
If your laptop is quite new (I have Broadwell i7 for example) you can remove the Intel driver:
sudo apt purge xserver-xorg-video-intel
as the actual driver used is modesetting.
See more about here: ubuntuforums.org.
Doing:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
EndSection
will block you from using nvidia proprietary drivers as nvidia-prime is based on modesetting.
But for me, removing xserver-xorg-video-intel fixed the intel tearing issue. If you have Ubuntu 18.04.2, or already moved to Hardware Enablement stack, the command to remove intel driver is:
sudo apt purge xserver-xorg-video-intel-hwe-18.04
As a last resort, you can try to put in /etc/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "Intel Graphics"
Driver "modesetting"
Option "TearFree" "true"
EndSection
This didn't affect my nvidia switching capabilities, but I don't use it since I don't need it.
Solution 3:
Setting the Intel driver options TearFree and TrippleBuffer to true worked for me, until I had to remove xserver-xorg-video-intel as suggested in these answers to run the latest Google Earth and other GL apps.
Switching to modesetting brought back screen tearing though, and I couldn't find a fix. Other issues have been reported too. For anyone else who's stuck: I ended up reinstalling xserver-xorg-video-intel and using an Intel config that works for everything:
/etc/X11/xorg.conf.d/20-intel-graphics.conf (create if needed):
Section "Module"
Load "dri3"
EndSection
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
# Required by Google Earth, other modern GL apps:
Option "DRI" "3"
# Fixes screen tearing:
Option "TripleBuffer" "true"
Option "TearFree" "true"
EndSection
Restart. Works on Ubuntu 18.04 + Intel HD Graphics 4000 (IVB GT2). Whatever performance issues this causes aren't noticable for me.