I've had the Inspiron 16 Plus 7620 for about 2 years now, using Windows 11. It's a great laptop for the most part. However, today, I wanted to try Linux. I booted Ubuntu Live 24.04 from a thumb drive. While it did boot, the system was very unresponsive. The screen update lags constantly. Moving the mouse cursor barely works. When you try move it, it moves for a fraction of a second, then freezes in place. If you try to move it again, it "teleports" to the spot it should have been had it not frozen, moves for a fraction of a second again and once more freezes in place. Clicking on anything (if you can get the cursor to get there) takes several clicks to work. And the menus take forever to open/close. I tried an external USB mouse, but it has the same behavior. It seems the screen only refreshes when you move the mouse cursor, but again, only for a fraction of a second, then freezes.
I have also tried other Linux Live distros: Ubuntu 24.04, 22.04. Even non Ubuntu distros, such as the latest Manjaro Gnome, latest Manjaro KDE, latest Fedora Workstation. The issue is present in all of them. And the issue is only present when in Linux. Booting back to Windows 11, the system has no issues whatsoever. I've tried restoring BIOS setting to default, as well as factory settings, but nothing helped. I'm currently running BIOS version 1.24.0.
I did get it to mostly work, however, when using an older distro: Ubuntu 20.04. In this distro, the only issue is that the touchpad does not work at all (perhaps for lack of drivers). But if I use an external USB mouse, everything works just fine - no lag or weird glitches. Obviously I'd rather use a more current distro, but it's kinda unusable with the described issues.
It seems to me the issue is related to more recent Linux kernels, given how other recently released distros are also affected, but it'd be interesting to hear if anyone would have any ideas what could be causing this, any suggestions on how to troubleshoot, and if there are any workarounds.
The laptop specs:
i7 12700H
32 GB RAM
1 TB NVMe SSD
Intel Iris Xe Graphics / Nvidia RTX 3060
Thank you.
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