Touchpad
The touchpad does not work after booting up with Linux Mint 20 MATE, you have few options here:
- Install Ubuntu 20.10 or Fedora 33 (anything with 5.8 kernel)
- Install kernel 5.8 or above from the Ubuntu Kernel PPA Mainline
Install 5.9.8 deb
Pick the 5.9.8 (that is the one I tested) or above from the kernel.ubuntu.com and download to a directory:
$ cd /tmp
$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.9.8/amd64/linux-headers-5.9.8-050908-generic_5.9.8-050908.202011101634_amd64.deb
$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.9.8/amd64/linux-headers-5.9.8-050908_5.9.8-050908.202011101634_all.deb
$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.9.8/amd64/linux-image-unsigned-5.9.8-050908-generic_5.9.8-050908.202011101634_amd64.deb
$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.9.8/amd64/ linux-modules-5.9.8-050908-generic_5.9.8-050908.202011101634_amd64.deb
# dpkg -i *.deb
# systemctl reboot
The touchpad should be activated after booting up with the new kernel:
# uname -r
5.9.8-050908-generic
# dmidecode | grep -A3 '^System Information'
System Information
Manufacturer: LENOVO
Product Name: 82EV
Version: Yoga Slim 7 Carbon 13ITL5
#
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ 06CBCD3E:00 06CB:CD3E Mouse id=11 [slave pointer (2)]
⎜ ↳ 06CBCD3E:00 06CB:CD3E Touchpad id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Video Bus id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=9 [slave keyboard (3)]
↳ Integrated Camera: Integrated I id=10 [slave keyboard (3)]
↳ Ideapad extra buttons id=13 [slave keyboard (3)]
↳ Intel HID events id=14 [slave keyboard (3)]
↳ Intel HID 5 button array id=15 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=16 [slave keyboard (3)]
$
Audio
Sound is not available, please change the following line in /etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="snd_hda_intel.dmic_detect=0"
then, issue the update-grub command:
# update-grub
# systemctl reboot
Video
The bundled kernel 5.4.0-[26|54]-generic is able to display 2560x1600 resolution with refresh rate 93 Hz. After fixing the touchpad with the mainline kernel 5.9.8-050908-generic, the display is still showing 2560x1600 resolution, with the refresh rate 60 Hz.
The same issue is found on Ubuntu MATE 20.10 and Fedora 33 MATE. As of writing I cannot find any information on how to fix this in Google searching. The trade off is to set to one of the 16:10 resolution:
16:10 resolution
1920x1200
1680x1050
1440x900
1280x800
Temporary Fix with xorg.conf (10-intel.conf)
This fix only applies for my current Linux Mint 20 MATE with a customized xorg.conf file saved in the location /etc/X11/xorg.conf/10-intel.conf
1. It sets the MATE desktop login screen to 1920x1200 resoluton
2. It creates the above four 16:10 resoluton options, i.e. Control Center | Displays The numbers are obtained from the cvt commands. Other details are from the log files and various commands output during trouble-shooting.
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen 0" 0 0
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "built-ins"
EndSection
Section "Monitor"
Identifier "e-DP1"
VendorName "AUO"
ModelName "B133QAN02.0"
Modeline "1920x1200" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync
Modeline "1680x1050" 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync
Modeline "1440x900" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync
Modeline "1280x800" 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync
EndSection
Section "Device"
Identifier "iris"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Screen"
Identifier "Screen 0"
Device "iris"
Monitor "e-DP1"
DefaultColorDepth 24
SubSection "Display"
Depth 24
Modes "1920x1200" "1680x1050" "1440x900" "1280x800"
EndSubSection
EndSection
Restart the lightdm:
# systemctl restart lightdm
Read the log if you are not exhausted!
# less /var/log/Xorg.0.log
Confirm with the xrandr:
$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1200, maximum 32767 x 32767
eDP1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 290mm x 180mm
1920x1200 59.88*+
2560x1600 60.00 +
1680x1050 59.95
1440x900 59.89
1280x800 59.81
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
DP4 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
$
Mate panel disappears
This is something unexpected but it hits me. After logging in there is a Computer icon and a Home icon...
Apparently the mate-panel process is found dead. As long as you run the command mate-panel &, the Mate panel comes back.
For a not so permanent fix (Linux Mint 20.1 should arrive before this year X'mas), create a Startup Applications with the following settings:
Name: mate-panel
Command: /usr/bin/mate-panel
Comment: Quick Fix
Delay: 5 seconds
Hope you find the information posted here is helpful!
