Originally Posted by netllama
According to your bug report you were using a "1176x664" mode with 1.0-7174 and a "1280x720_60.00" mode in 1.0-8776. Those are not the same modes.
True, but I switched to the "1280x720_60.00" while I'm resolving this issue; it has equal overscan on all sides. The problem I reported was while using the "1176x664" mode.