Excellent, thank you for the Xorg.0.log.old. Next time, do you mind attaching logs as .txt? It makes them easier to open in a browser. (I've re-uploaded it for you as a .txt.)
Also, do you mind attaching a dmesg from /var/log that has a timestamp that coincides with the freeze? You can take a look through it and see if you find anything unusual; if so that's the one to upload.
Excellent, thank you for the Xorg.0.log.old. Next time, do you mind attaching logs as .txt? It makes them easier to open in a browser. (I've re-uploaded it for you as a .txt.)
Also, do you mind attaching a dmesg from /var/log that has a timestamp that coincides with the freeze? You can take a look through it and see if you find anything unusual; if so that's the one to upload.