How to get Dell xps 13 9370 laptop video driver to work?

Question

linux

I have a Dell xps 13 9370 laptop with Intel UHD Graphics 620 and Xubuntu 18.04 on board. During elementary actions (dragging windows, scrolling websites, etc.), artifacts appear ("pixel ladder" along the edges of windows, "scratch effect", etc.) and the case heats up a little. The output of the inxi -Fx command:

System:    Host: tux Kernel: 4.15.0-39-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Xfce 4.12.3 (Gtk 2.24.31) Distro: Ubuntu 18.04.1 LTS
Machine:   Device: laptop System: Dell product: XPS 13 9370 serial: N/A
           Mobo: Dell model: 0H0VG3 v: A00 serial: N/A
           UEFI: Dell v: 1.5.1 date: 08/09/2018
Battery    BAT0: charge: 15.9 Wh 30.7% condition: 52.0/52.0 Wh (100%)
           model: SMP DELL G8VCF6C status: Discharging
CPU:       Quad core Intel Core i7-8550U (-MT-MCP-) 
           arch: Kaby Lake rev.10 cache: 8192 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 15936
           clock speeds: max: 4000 MHz 1: 1219 MHz 2: 2004 MHz 3: 2091 MHz
           4: 1903 MHz 5: 2096 MHz 6: 1944 MHz 7: 1511 MHz 8: 1803 MHz
Graphics:  Card: Intel UHD Graphics 620 bus-ID: 00:02.0
           Display Server: x11 (X.Org 1.19.6 )
           drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: 19[email protected]
           OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2)
           version: 4.5 Mesa 19.0.0-devel (git-d031d5c 2018-11-16 bionic-oibaf-ppa) Direct Render: Yes
Audio:     Card Intel Sunrise Point-LP HD Audio
           driver: snd_hda_intel bus-ID: 00:1f.3
           Sound: Advanced Linux Sound Architecture v: k4.15.0-39-generic
Network:   Card: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter
           driver: ath10k_pci bus-ID: 02:00.0
           IF: wlp2s0 state: up mac: 9c:b6:d0:8b:13:89
Drives:    HDD Total Size: 256.1GB (3.9% used)
           ID-1: /dev/nvme0n1 model: KXG50ZNV256G_NVMe_TOSHIBA_256GB size: 256.1GB
           
Partition: ID-1: / size: 234G used: 9.3G (5%) fs: ext4 dev: /dev/nvme0n1p2
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 32.5C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 219 Uptime: 10 min Memory: 1268.3/7693.2MB
           Init: systemd runlevel: 5 Gcc sys: 7.3.0
           Client: Shell (bash 4.4.191) inxi: 2.3.56

It can be seen that the video card driver is installed, but for some reason it either works incorrectly, or is somehow not configured correctly, or something else ... Please help me figure it out!

Answer 1

Ubuntu and derivatives have a Driver Manager - try switching to a different one - that should definitely work

It can be seen that the video card driver is worth

Can not see. What did you determine?

Answer 2

Take for example the latest ppa
https://launchpad.net/~oibaf/+archive/ubuntu/graph...

Answer 3

Write to /etc/X11/xorg.conf.d/20-intel.conf

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

And reboot.
If there are artifacts, removing the Option "AccelMethod" "sna" line on the new processors might help.
To get rid of artifacts in Firefox, you need to enable forced GPU acceleration in the settings (or about: config)