Recently bought myself a second-hand #ThinkPad T480. A very good laptop, except for two things.

The first is the worst IPS display I have ever seen. I've found an ICC profile that improves things a bit. But it's still somehow manages to be both under-saturated and over-saturated.

The second is a pair of anaemic speakers. I tried Easy Effects, which uses LV2 plugins. It does vastly improve the sound, but it uses a lot of CPU. So, I've switched to JamesDSP - almost as good as Easy Effects and uses a fraction of the CPU. Plus it handles profile switching much better than Easy Effects - I can have separate profiles for the speakers, my headphones, and the HDMI outputs.

End of the day, though, you can't polish a turd. A replacement panel is on my shopping list, as soon as I can find a reliable supplier. I've also seen a couple of speaker replacement mods on Reddit, so I might attempt one of those.

Coming from the Vaio, where the screen and speakers were excellent (for a 13" ultrabook), it's been a bit of a shock. But the rest of the laptop is excellent. Especially the keyboard. Plus I get a TrackPoint and a trackpad.