Ubuntu 20.04 experiencing high power usage from the NVIDIA GPU even with just the built-in graphics card (Intel iGPU).
Ubuntu 20.04 experiencing high power usage from the NVIDIA GPU even with just the built-in graphics card (Intel iGPU).
The problem is straightforward: switching to the Intel iGPU via the Nvidia X Sever settings GUI isn’t functioning properly, and the NVIDIA GPU still draws power after a reboot, causing extra heat. The same occurs when using prime-select from the terminal. Using powertop shows I’m consuming about 18-22W when idle—roughly 10W more than expected. This appears to be an old issue that was supposedly resolved. There are at least two bug reports on Launchpad (https://bugs.launchpad.net/ubuntu/+sourc...ug/1765363) and possible workarounds. The main challenge is that many discussions are over three years old, making it hard to confirm what works now. I attempted installing Ubuntu without selecting "install third party drivers," but that didn’t help. Recently, someone else mentioned the same issue here: https://discourse.ubuntu.com/t/nvidia-pr...dgpu/21856. My machine uses an Optimus laptop with the 11800H graphics, Ubuntu 20.04 (and 21.10), and I’ve tested drivers 470 and 460.
I don't want to be that person, but have you considered installing a new distribution live?
I'm not sure about that, but I might consider it this weekend. From what I read online, it could work instantly on Fedora and POP OS. It looks like an Ubuntu issue rather than a NVIDIA one, though I doubt the Linux version will help.
Discovered this on the Arch Wiki page. https://wiki.archlinux.org/title/PRIME#P...Management Perhaps searching Google for similar topics on Ubuntu would help.