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--- linux [2024/01/18 22:04] – [Future Config Tips] dblume
+++ linux [2024/04/26 22:31] – [i3] dblume
@@ Line 11: / Line 11: @@
   sudo apt install exuberant-ctags cscope moreutils
-Now that you have vim and git:
+Now that you have vim and git, get [[https://github.com/dblume/dotfiles|your dotfiles]]:
   git clone ssh://dblume@dlma.com/~/git/dotfiles.git
@@ Line 21: / Line 21: @@
   sudo apt install tmux entr
   tmux
-  sudo apt install curl jq tree expect gnuplot httpie visidata
+  sudo apt install curl jq tree expect gnuplot httpie visidata ripgrep at
   sudo apt install python3-pip
   python3 -m pip install matplotlib
@@ Line 78: / Line 78: @@
 The [[https://i3wm.org/|i3 Window Manager]].
+==== Install Alacritty ====
+gnome-terminal won't distinguish between C-i and Tab, so [[https://www.how2shout.com/linux/how-to-install-alacritty-terminal-on-ubuntu-22-04-lts/|install a terminal emulator that can, like Alacritty]], and set TERMINAL in .bashrc for i3-sensible-terminal to use.
 ==== Configuration ====
@@ Line 97: / Line 102: @@
 xinput set-prop "PIXA3854:00 093A:0274 Touchpad" "libinput Natural Scrolling Enabled" 1
 xinput set-prop "PIXA3854:00 093A:0274 Touchpad" "libinput Tapping Drag Lock Enabled" 1
+xinput set-prop "PIXA3854:00 093A:0274 Touchpad" "libinput Scrolling Pixel Distance" 40
 </file>
@@ Line 154: / Line 160: @@
     nmtui
+==== Suspend and Hibernation ====
+A note on battery life. Frame.work batteries work best at charges between 80% and 30%. I went into BIOS ([[https://knowledgebase.frame.work/how-do-i-enter-the-bios-on-the-framework-laptop-HydmWf5Ad|pressing F2 on start up]]) and set maximum charge to 90%.
+Suspend worked out of the box. See This PSA from frame.work: [[https://www.reddit.com/r/framework/comments/19bf3ki/linux_suspend_and_amd_reminder/|Linux Suspend and AMD Reminder]]. Per that PSA and [[https://community.frame.work/t/tracking-linux-battery-life-tuning/6665/536|[TRACKING] Linux Battery Life tuning]], I ran [[https://gitlab.freedesktop.org/drm/amd/-/blob/master/scripts/amd_s2idle.py?ref_type=heads|amd_s2idle.py]]. It ended with:
+<code>
+🚦 RTC driver `rtc_cmos` configured to use ACPI alarm
+Explanations for your system
+🚦 rtc_cmos is not configured to use ACPI alarm
+	Some problems can occur during wakeup cycles if the HPET RTC emulation is used to
+	wake systems. This can manifest in unexpected wakeups or high power consumption.
+For more information on this failure see:
+	https://github.com/systemd/systemd/issues/24279
+</code>
+So per the third link above, I [[https://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter|added a kernel boot parameter]] by editing /etc/default/grub like so:
+<file bash /etc/default/grub>
+...
+GRUB_CMDLINE_LINUX_DEFAULT="quiet splash rtc_cmos.use_acpi_alarm=1"
+...
+</file>
+And then I ran ''sudo update-grub'' per the file's instructions.
+Enable suspend-then-hibernate. To hibernate, [[https://community.frame.work/t/hibernation-using-it/6060/11|you need swap to be as big as RAM, then update GRUB]]. (32GiB in my case.) You may also have to [[https://community.frame.work/t/battery-drain-on-suspend-sleep-with-linux/42395/4?u=david_blume|disable Secure Boot]].
+I had a 2GiB /swapfile, and this is how I resized it:
+<code bash>
+~$ sudo swapoff /swapfile
+~$ sudo dd if=/dev/zero of=/swapfile count=32K bs=1M
+...
+~$ sudo mkswap /swapfile
+~$ sudo swapon /swapfile
+</code>
+Then it became time to update the kernel boot params again with the UUID of the volume with the swapfile, and the physical offset of the swapfile.
+<code bash>
+$ blkid
+/dev/nvme0n1p2: UUID="de9f6aca-85a1-461b-b8b8-15f44441f64d" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="121db783-104a-4138-b7c2-c0451ab10454"
+$ sudo filefrag -v /swapfile | head
+Filesystem type is: ef53
+File size of /swapfile is 34359738368 (8388608 blocks of 4096 bytes)
+ ext:     logical_offset:        physical_offset: length:   expected: flags:
+:        0..    2047:    1257472..   1259519:   2048:
+</code>
+That means, in my case, I add this to ''/etc/default/grub'''s ''GRUB_CMDLINE_LINUX_DEFAULT''.
+<code>
+resume=UUID=de9f6aca-85a1-461b-b8b8-15f44441f64d resume_offset=1257472
+</code>
+Don't forget to ''sudo update-grub''.
+Then I enabled this line in
+<file bash /etc/systemd/logind.conf>
+HandleLidSwitch=suspend-then-hibernate
+</file>
+Everything is still commented out in ''/etc/systemd/sleep.conf'' (Also see [[https://community.frame.work/t/tracking-suspend-on-linux-drains-a-lot-of-battery-compared-to-other-laptop/24737/60|suspend drains battery]]). May need to turn some of those lines on.
 ==== Future Config Tips ====
@@ Line 168: / Line 231: @@
   * Behavior: Run JavaScript
   * Javascript code to run: ''document.execCommand('copy')''
-=== Suspend and Hibernation ===
-See if you can get your laptop to conserve battery better when closing the lid. Alex_Maras provides some potential tips here:
-  * [[https://community.frame.work/t/resolved-amd-framework-arch-linux-suspend-wakes-every-5-minutes/39022|[RESOLVED] AMD Framework - Arch Linux - Suspend wakes every 5 minutes]]
-  * [[https://community.frame.work/t/responded-amd-hot-while-suspended-in-suspend-then-hibernate/39050|[RESPONDED] AMD - Hot while suspended in suspend-then-hibernate]]
 ===== Gnome (Desktop Env) =====