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Keyboard and Display/Scaling Issues - Linux Mint


New Member
Oct 18, 2022
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Hey! Been on Linux Mint for a while now and having some teething issues.

1. Restarting / Shutdown results in laptop restarting with no backlit keyboard. Need re-instated from the function key on boot.
2. Scaling to 125% randomly will default back to 100% when waking laptop from suspend.
3. Laptop screen remains off after pressing power key from suspend mode, forcing a hard reset.

The only modifications I've done is adding "i915.enable_psr=0" to the config as my laptop's intel GPU was causing the system to freeze.

Specs below and neofetch attached.

Kernel: 5.15.0-41-generic x86_64 bits: 64 compiler: gcc v: 11.2.0
Desktop: Cinnamon 5.4.8 tk: GTK 3.24.33 wm: Mutter dm: LightDM
Distro: Linux Mint 21 Vanessa base: Ubuntu 22.04 jammy
Type: Laptop System: Dell product: Latitude 7390 v: N/A
serial: <superuser required> Chassis: type: 10 serial: <superuser required>
Mobo: Dell model: 09386V v: A00 serial: <superuser required> UEFI: Dell
v: 1.28.0 date: 08/11/2022
ID-1: BAT0 charge: 33.8 Wh (64.5%) condition: 52.4/60.0 Wh (87.4%)
volts: 7.5 min: 7.6 model: SMP DELL DW3WC64 serial: <filter>
status: Discharging
Info: quad core model: Intel Core i5-8250U bits: 64 type: MT MCP
arch: Coffee Lake rev: A cache: L1: 256 KiB L2: 1024 KiB L3: 6 MiB
Speed (MHz): avg: 900 min/max: 400/3400 cores: 1: 900 2: 900 3: 900
4: 900 5: 900 6: 900 7: 900 8: 900 bogomips: 28800
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Device-1: Intel UHD Graphics 620 vendor: Dell driver: i915 v: kernel ports:
active: eDP-1 empty: DP-1,HDMI-A-1,HDMI-A-2 bus-ID: 00:02.0
chip-ID: 8086:5917
Device-2: Microdia Integrated_Webcam_HD type: USB driver: uvcvideo
bus-ID: 1-5:2 chip-ID: 0c45:6717
Display: x11 server: X.Org v: driver: X: loaded: modesetting
unloaded: fbdev,vesa gpu: i915 display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96
Monitor-1: eDP-1 model: AU Optronics res: 1920x1080 dpi: 166
diag: 336mm (13.2")
OpenGL: renderer: Mesa Intel UHD Graphics 620 (KBL GT2)
v: 4.6 Mesa 22.0.1 direct render: Yes
Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell
driver: snd_hda_intel v: kernel bus-ID: 00:1f.3 chip-ID: 8086:9d71
Sound Server-1: ALSA v: k5.15.0-41-generic running: yes
Sound Server-2: PulseAudio v: 15.99.1 running: yes
Sound Server-3: PipeWire v: 0.3.48 running: yes
Device-1: Intel Ethernet I219-LM vendor: Dell driver: e1000e v: kernel
port: N/A bus-ID: 00:1f.6 chip-ID: 8086:15d7
IF: enp0s31f6 state: down mac: <filter>
Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel pcie:
speed: 2.5 GT/s lanes: 1 bus-ID: 02:00.0 chip-ID: 8086:24fd
IF: wlp2s0 state: down mac: <filter>
Device-1: Intel Bluetooth wireless interface type: USB driver: btusb v: 0.8
bus-ID: 1-7:3 chip-ID: 8087:0a2b
Report: hciconfig ID: hci0 rfk-id: 2 state: up address: <filter>
bt-v: 2.1 lmp-v: 4.2 sub-v: 100
Local Storage: total: 534.24 GiB used: 512 KiB (0.0%)
ID-1: /dev/nvme0n1 vendor: Western Digital
model: PC SN730 SDBQNTY-512G-1001 size: 476.94 GiB speed: 31.6 Gb/s
lanes: 4 serial: <filter> temp: 29.9 C
ID-2: /dev/sda type: USB vendor: SanDisk model: USB 3.2Gen1
size: 57.3 GiB serial: <filter>
ID-1: / size: 7.74 GiB used: 24.8 MiB (0.3%) fs: overlay source: ERR-102
ID-2: /var/log size: 53.86 GiB used: 512 KiB (0.0%) fs: ext4
dev: /dev/sda3
Alert: No swap data was found.
System Temperatures: cpu: 25.0 C pch: 37.0 C mobo: N/A
Fan Speeds (RPM): cpu: 0
Processes: 248 Uptime: 3m Memory: 15.49 GiB used: 1.08 GiB (7.0%)
Init: systemd v: 249 runlevel: 5 Compilers: gcc: 11.2.0 alt: 11 Packages:
apt: 2078 Shell: Bash v: 5.1.16 running-in: gnome-terminal inxi: 3.3.13


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Active Member
Apr 15, 2022
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Are you missing any intel firmware?:
# dmesg | grep -i firmware

Do you have the latest firmware installed? This can be checked by having at look at what's in the repos and upgrading to the latest there, but also you can have a look in your /lib/firmware/i915 file compared to what's in: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915. If there is more recent firmware at kernel.org, it's possible to just copy it to your local /lib/firmware/i915 directory.

Can you control scaling with xrandr? If that's possible, you can set xrandr to size the display at bootup. Can't help yet on the backlight.
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