this post was submitted on 17 Oct 2023
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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The output here lets us know that systemd is running the service file and starting the script just fine. The echoed GPU temperature is making it to the journal, but the
gpuTempvariable isn't being updated (staying at0) because of a problem executingnvidia-settings. Specifically, it wants a display: "The control display is undefined".You could add a line to the service file:—
Although if
echo DISPLAYin your terminal gives you a different value, use that. There's a possibility that that will just push one error further down the line, but it's something to try.Alternatively/additionally, you could try changing the
User=line to your own username to see if it picks up the environment your manual executions work with.You aren't the only one to run into problems trying to automate
nvidia-settings. You might end up needing to track down anXauthorityfile or use the display manager's initialisation options.