Samsung HDMI 1080p no longer works after 10.8.4

Has anyone else had a new problem with HDMI connection to their Samsung LN40B series TV failing to successfully work at 1080P since installing 10.8.4?

This is happening via mini display port ---> HDMI connection with both a MacBook Air and MacBook Pro 13.

The 10.8.4 update has changed the video signal at 1080P so that my Samsung LN40B530P7NXZA no longer will accep the 1080P signal

It works fine under 10.8.3 at 1080P on the very same hardware and cabling. Booting back and forth between 10.8.3 and 10.8.4 definitely shows a problem when 10.8.4 tries to negotiate a 1080P connection.

Tweaking the signal with SwitchResX allows 1080P/60 to work under 10.8.4, but the natively supplied 1080P setting in the 10.8.4 display preference pane yields an unsupported mode error on the TV.

Reverting to 10.8.3 once more allows the 1080P resolution to function.

Interestingly, this isn't happening with all TV's. Another brand TV does fine at 1080P no matter if 10.8.3 or 10.8.4 is booted.

If you are using your mac to drive a Samsung TV at 1080P via HDMI, be sure to have a means of reverting back to 10.8.3 in case you run into this problem.