I’ve been trying different distributions on my Thinkpad T480, via live USB. I like Ubuntu MATE the best, but unfortunately all of the available compositors seem to be broken. The default one causes jumpy window movement; the others have various problems, such as window movement lagging behind the mouse cursor, or choppy window resizing. Not one of them works correctly on my machine.
I can boot it up again and write up a more detailed report for each compositor if that would be helpful, but I guess my immediate questions are, if I am doing something obviously wrong, or if anybody else has had more luck running on a T480, or if anyone else has experienced the same thing.
Also FWIW this is all tested on an external monitor via USB-C, 3840 x 1600 at 60 Hz. I can test on the internal display if that would be helpful. Just let me know what information would be helpful to provide as a next step.
I do not have direct experience of your situation, however…
“… via USB-C”
Don’t forget USB connections require drivers. I know of windoze sys-admins who are not looking forward to having to maintain fleets of laptops connected via USB-C “docking-stations”.
Have you done a “bare-metal” installation, or are you looking at this via a “live-USB/DVD” boot?
@Wimpy
Hello Mr. Wimpress. As far as I know you are thinking of perhaps purchasing a Thinkpad, so may be considering this sort of thing? You also seem to know all about this “compositor” subject. Any hot tipps?
This machine does not use Nvidia, it has Integrated Intel UHD Graphics 620.
I got a chance to install to my hard drive and test - same thing. Also tested on the internal display - slightly different, but mostly similar results, so the problem is not exclusive to the external monitor.
If I can provide any further information, let me know. I’d really like to be able to run Ubuntu MATE on this machine.
I also noticed that if i change window manager from one with compozitor to another - i have laggy window moving. To avoid it i switch first to marco(no compositor) and then to other one. Did you try this?
It’s possible that Compton would work fine, as it has a lot of options, but that the configuration file provided by Ubuntu MATE triggers specific issues with your GPU.
