Notes for my Linux configuration on a Tuxedo InfinityBook Pro 15 - Gen9

I did the installation from scratch so without using any of the Linux images proposed by Tuxedo.

I have been using Debian for more than 15 years (and various Linux distros for a lot longer) but I decided to try Arch Linux on this machine. Correction: I switched back to Debian because ... reasons.

The CPU is an AMD Ryzen 7 8845HS with Radeon 780M Graphics

The native screen resolution is 2560x1600 @ 240.000 Hz

I do not expect too much problem since Tuxedo is mosty selling that laptop to Linux users.

The laptop wakes up after a few second after going to sleep

Edit /etc/default/grub to add acpi.ec_no_wakeup=1 in GRUB_CMDLINE_LINUX_DEFAULT
and regenerate /boot/grub/grub.cfg with grub-mkconfig -o /boot/grub/grub.cfg

The laptop does not go to sleep if the lid is closed within 15 seconds after resuming from sleep (SOLVED).

I eventually figured out that this was not a real issue. Systemd was simply waiting for the end of the first sleep task. That typically happens after 20 to 30 seconds so the laptop will eventually go to sleep.

The console text is too small

This is because of the 2560x1600 resolution.

There are 2 ways to solve that problem:

list all supported resolutions with videoinfo while in GRUB menu and then customize GRUB_GFXMODE in /etc/default/grub. A good value for me is 1280x70
or use a different PF2 font by setting GRUB_FONT in /etc/default/grub. The tool grub-mkfont can be used to generate the required PF2 font file from a standard font format such as TTF.

Reminder: After editing /etc/default/grub, run grub-mkconfig -o /boot/grub/grub.cfg or update-grub

The webcam

The integrated webcam appears as /dev/video0 with several controls and it seems to be working fine with kernel 6.6.59-1-lts. The resolution is 1920x1080 but the quality is quite poor (especially in low light) but I was not expecting more from it.

The user must of course be in the group video.

mpv --profile=low-latency --untimed  av://v4l2:/dev/video0
v4l2-ctl -d /dev/video0 -l

The second video device /dev/video2 only provides a 640x360 «infrared» video stream without any controls. It is intended for infrared face recognition.

The keyboard.

No major issues. I ordered the US ISO layout.

In XKB configuration, set the layout to us(euro) since the 5 key has the euro symbol.

Most Fn key combos are working and are properly reported as keyboard events and by sudo libinput debug-events

There are a few exceptions:

Fn+F3. No idea what this is supposed to do.
Fn+F9 will turn the screen off (press any key to restore). This is probably handled by the BIOS.
Fn+F11. This is probably supposed to disable the touchpad. Does nothing so far.
Fn+F12. Should toggle 'plane' mode and so turn off the WiFi. Does nothing so far.

The combo Fn+ESC toggle Fn by default on the relevant keys (so its a Fn-lock)

Strangely, on that keyboard, the 'shift' characters are below the default characters. This is quite confusing at first.

Touchpad

Here is my preferred configuration for Sway

input "2362:597:UNIW0001:00_093A:0255_Touchpad" {
       # disable touchpad while typing 
       dwt enabled
       # allow tap
       tap enabled
       # two-fingers tap to paste (middle button)
       tap_button_map lmr       
       # or press both physical buttons  
       middle_emulation enabled
       # Scroll by sliding on the right edge
       scroll_method edge 
}

The touchpad is correct but not as good as my previous laptop.

An annoying issue is that it very close to the side of the laptop. So when I put the laptop on my thighs, the touchpad will something pick the heat of my body and behave strangely.

HiDPI screen on Sway

So far, I am using the following configuration for the HiDPI 2560x1600 screen. This is of course very subjective and some applications may still need to be fine tuned.

output eDP-1 {
   mode 2560x1600@60Hz
   position 0 0
   scale 2
}

Note: A scaling factor of 2 is the «default» for HiDPI displays.

I also found that the following settings can help for some applications (Firefox, GTK, ...)

exec_always {
    gsettings set org.gnome.desktop.interface text-scaling-factor 0.75
    gsettings set org.gnome.desktop.interface cursor-size 16
}

Applications that use XWayland are pixelated in Sway. I am not sure if this is a Wayland issue, a Sway issue, an XWayland issue or a GTK issue. After reading swaywm/sway#7715 , this is unlikely to change soon.

schauveau/main.md