Mavericks issues with external monitor

Yeah. 2013 rMBP. I have to unplug the HDMI cable and plug it back in, then it fixes itself automatically. Not a huge inconvenience since I don't use it in clamshell mode full-time, but I'd imagine it to be a pain for those who do.

 

I had this problem with a mini and a samsung tv in, I beleive, dp 6. It no longer occurs in dp 8.

 

Mac Mini recognizes my external HDMI 1080p displays (Dell S2340L) as TV instead of monitor. I would try this 'Display Override' method;

http://ireckon.net/2013/03/force-rg...ix-the-picture-quality-of-an-external-monitor

It changes output from YCbCr to RGB, uses correct color profile, and lists actual resolutions in display preferences instead of 1080p, 1080i etc.

 

I'm getting this with my 2009 Mac Mini that is connected to a Sony Bravia TV with a mini DP to VGA adapter. Often the resolution will reset back to 800x600 e.g. after sleep or if the TV isn't on. Worked fine with SL but after updating to Mavericks this problem has appeared.
I can get the correct resolution to appear as an option by option clicking 'scaled' in the display preferences panel, but the image becomes offset and is not centred on the display, nor does it look correct (looks as if the wrong refresh rate is used).

 

I've had the issue of HDTV video source devices can losing the EDID after sleep or source changes. Yes, you can often fix by restarting or pulling the HDMI cable. However Gefen HDmi Detective Plus is a more elegant solution as it is designed to "remember" the EDID and thus keep the screen rez constant. Gefen has versions for DVI, etc.

 

Try this workaround:
When it loses resolution, press CMD+F2 to make it detect displays again
Works for me

 

Is it acceptable as a workaround to simply adjust energy saving preferences so the display and notebook never sleep while on power supply?

Burn in can be avoided with the screen saver.