I'm running Debian on a Lenovo IdeaPad with 8 GB of RAM and zram enabled. The CPU and memory are adequate, but the laptop uses a 2.5-inch 5400 RPM mechanical hard drive, which seems to be the main performance bottleneck. An SSD isn't affordable for me right now.
I've used KDE Plasma and XFCE for a long time. XFCE feels lighter, but its Wayland support is incomplete and I've had problems with the keyring and password-management integration. KDE handles those features better, but booting is slow and the system can become sluggish or unresponsive after opening several applications. It has also gotten slower as I've installed more software.
I don't enjoy tiling window managers, and although I'm comfortable configuring desktop environments, I'm not very familiar with options such as i3 or labwc. Should I switch to a different desktop environment, tune my current setup, or focus on improving the storage situation?
4 Answers
If you like the general KDE approach but want something lighter, Trinity Desktop Environment is another possibility. It has a traditional KDE-like layout and can run comfortably on older hardware, but it currently uses X11 rather than Wayland. Budgie is also worth testing, although its performance on a mechanical drive will depend heavily on the applications you run.
Increasing zram may help when you run out of memory, but it will not solve slow boot times or general disk-related pauses. With 8 GB of RAM, browser tabs and large applications are likely to cause more pressure than the desktop itself. Check disk activity, startup services, and swap behavior before changing too much. Also, KDE on Debian can vary depending on the release and configuration, so trying a fresh Plasma setup or another distribution with a more integrated KDE build may be worthwhile.
I’ll monitor memory and disk usage first. It sounds like increasing zram could help under load, but replacing the hard drive would have a much larger overall effect.
The hard drive is probably the biggest limitation here. A lightweight desktop may improve responsiveness, but it cannot fully hide the latency of a 5400 RPM disk. If possible, look for a small SATA SSD, a used drive, or even a 7200 RPM replacement. You could keep your existing disk for a separate home-data partition and use a smaller SSD for the operating system and applications.
That makes sense. I’ll look into used or smaller SATA drives and see whether I can keep the current disk for extra storage.
LXQt would be a good first desktop to try. It uses relatively few resources while still providing a conventional graphical desktop, so it should feel familiar without requiring a tiling workflow. A clean installation may be preferable if you have accumulated several desktop environments and overlapping services, since removing one later does not always remove every dependency or startup component.
LXQt sounds like the closest fit for what I want. I’ll test it, preferably from a clean installation or a separate session.
The lack of Wayland support would be a drawback for Trinity, but it could still be useful if conventional X11 support is acceptable.