Please attach (do not copy/paste) your /var/log/Xorg.0.log. This will give an indication why it didn't include the 1024x768 resolution.
The issue with displayconfig-gtk is a separate bug so won't be covered here.
Please attach (do not copy/paste) your /var/log/ Xorg.0. log. This will give an indication why it didn't include the 1024x768 resolution.
The issue with displayconfig-gtk is a separate bug so won't be covered here.