I have a Thunderbolt to HDMI to TV set up.
On occasion it just starts switching the TV display on and off.
I have not been able to determine the root cause.
Looking in the Console just confirms the Display switching, but I do not see the reason.
I can not isolate the problem since it is sporadic, but started recently.
I have tested the HDMI cable (not the Thunderbolt adapter) otherwise and it works fine.
I tired all 3 of the HDMI inputs on the TV without success.
5/13/14 11:44:44.439 PM WindowServer[108]: Display added
5/13/14 11:44:44.439 PM WindowServer[108]: Display removed
5/13/14 11:44:44.439 PM WindowServer[108]: Displays mirrored
5/13/14 11:44:37.584 PM WindowServer[108]: hw_mirror_device_if_possible: windowserver picks master 0x4273c00 as primary (driver did not pick)
5/13/14 11:44:37.584 PM WindowServer[108]: Display 0x04273c00: Unit 0: Startup Mode 1440 x 900, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80000000, ioModeDepth 0x0, IOReturn 0x0
5/13/14 11:44:37.585 PM WindowServer[108]: Display mode changed
5/13/14 11:44:37.585 PM WindowServer[108]: Display added
5/13/14 11:44:37.585 PM WindowServer[108]: Display removed
5/13/14 11:44:37.585 PM WindowServer[108]: Displays mirrored
5/13/14 11:44:37.586 PM WindowServer[108]: Display 0x04273c00: GL mask 0x1; bounds (0, 0)[1440 x 900], 17 modes available
Master in mirror set; Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model 9cf0, S/N 0, Unit 0, Rotation 0
UUID 0x933c106c08bc09aaf750c2a74a119def, ColorProfile { 5, "Color LCD Calibrated"}
UPDATE:
It is not the TV sleep mode since it goes for 10 minutes or more then it starts switching on/off…on/off like crazy (see Console report), then it eventually stops and goes on for another while.
More Update:
So I am trying to narrow it down:
This is only a small extract of a long list in what is it doing in very rapid fashion. I am not touching anything but it keeps switching the display mode?
It says Received display connect changed? So my question is "Received from whom?" The TV, or the Thunderbolt/HDMI plug? Where do the all different display ### come from?
5/15/14 10:45:59.804 AM WindowServer[108]: Received display connect changed for display 0x4273c00
5/15/14 10:45:59.853 AM WindowServer[108]: Received display connect changed for display 0x3f003d
5/15/14 10:45:59.890 AM WindowServer[108]: Received display connect changed for display 0x3f003e
5/15/14 10:46:07.425 AM WindowServer[108]: Received display connect changed for display 0x4273c00
5/15/14 10:46:07.441 AM WindowServer[108]: Received display connect changed for display 0x44105d81
5/15/14 10:46:07.443 AM WindowServer[108]: Received display connect changed for display 0x3f003e
5/15/14 10:46:09.913 AM WindowServer[108]: Received display connect changed for display 0x4273c00
5/15/14 10:46:09.964 AM WindowServer[108]: Received display connect changed for display 0x3f003d
MBA 10.9.2
Best Answer
Problem Solved.
After analyzing the Console reports:
I learned that the 0x04273c00 is my Build in Display for reference.
After plug in Thunderbolt but TV is still OFF
Turn TV ON and select HDMI as Input source
It turns out that the communication between the TV and Mac is constantly trying to find another profile to use. Probably because the TV is telling Mac it is something else then Mac is telling it to do.
So looking in the profiles setting using the ColorSync and the available vs assigned profiles.
The pic below show the solved solution with correct profiles.
The current profile was set to SD and not HD.
After changing the profile back to HD (High Definition) factory setting all was finally fine.
In plain English--Mac was telling the TV to use the SD profile (standard definition) normally not a problem but, the TV was replaying I am HD, and that is where the confusion came from.