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== Scroll Wheel Speed Tweaks == The default scroll speed in most distros is just too slow. Most distros have nothing in the Settings for mouse scroll speed by default. But this can be easily changed with the <code>imwheel</code> package! === Installing imwheel === Install <code>imwheel</code> on your current distro. For example: Ubuntu 18.04-20.04: <code>sudo apt install imwheel</code> Arch Linux/Manjaro: <code>sudo pacman -S imwheel</code> Next, you will need to configure imwheel. === Configuring imwheel === Open a terminal and type <code>cd ~</code>, then <code>nano .imwheelrc</code>. In that file, you will want to paste (or type) the following: <nowiki> # change chromium to your preferred browser. This is a regular expression, so in imwheel, any process that contains the word chromium in it. This does not include the "normal" Google Chrome for Linux (that you'll have to install separately, see the Wiki page "Installing Google Chrome" for detail how to do that. # Both ^chromium$ and ^firefox$ work. They do need to be in quotes though. "^chromium$" None, Up, Button4, 3 None, Down, Button5, 3</nowiki> The 3 says how many lines you want to scroll at a time. I personally recommend 3, some people prefer 4. Then press <code>Ctrl+X</code>, <code>Y</code>, then <code>ENTER</code> keys. This will save the changes to your file exit <code>nano</code> text editor. The final step is to run it. === Running imwheel === To run imwheel, simply type <code>imwheel</code> in the terminal. That's it! You can run it on startup simply by adding <code>imwheel</code> to your distro's autostarting applications. GNOME and KDE have dedicated sections in Settings or "System Settings" (KDE) for automatically starting applications. (In KDE, it may not appear in the dropdown of applications that shows up, as KDE doesn't recognize imwheel as an "application" (because it does not install a .desktop file). Just type imwheel and click the "OK" button.) == Trackpad Sensitivity Tweaks == These are specifically for the Precision 5520 but may work on other laptops. NOTE: these do not work with <code>libinput</code>, and have not for years (surprisingly this issue doesn't receive much attention). You'll need to find a way to install the xinput Synaptics package. [To be found in my wiki backups]
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