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I recently acquired an older motherboard with SiS built-in graphics and installed Xubuntu on it. I wanted to challenge myself and see if I could figure out how to install a graphics driver for SiS. After a bit of work, I believe I actually managed to do just that by using this guide with a few tweaks. I have come to the conclusion that I was successful because originally, /var/log/Xorg.0.log was showing an error saying that the "sis" module I was trying to use failed to load. With a final tweak, /var/log/Xorg.0.log was showing the "sis" module being successfully loaded, and the resolution of the display also increased. However, when I checked the output of lspci -v and lshw -c video, there was no reference to the sis driver. Do these commands always show the graphics driver being used? Am I wrong in thinking that I did this successfully?

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lspci and lshw only show driver information for hardware handled by a kernel driver. In your case, the graphics hardware is managed by a X.org driver, not a kernel driver, so the driver doesn’t show up in the output of lspci or lshw.

The fact that your screen resolution increased is a strong indicator that you succeeded, as is the successful loading of the sis module traced in the X.org server logs.

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