I tried to connect my LG HDTV (42" LD650) to my MacBook Pro 13" (mid-2010) using a DisplayPort to HDMI adapter. When I plug the cable in, my MacBook's screen flickers every time but the TV is only detected when it is in standby mode. Its status will switch to "No Display Connected" the moment I turn it on.
Here is what System Profiler shows when the TV is in standby mode:
NVIDIA GeForce 320M: Chipset Model: NVIDIA GeForce 320M Type: GPU Bus: PCI VRAM (Total): 256 MB Vendor: NVIDIA (0x10de) Device ID: 0x08a0 Revision ID: 0x00a2 ROM Revision: 3533 Displays: Color LCD: Resolution: 1280 x 800 Pixel Depth: 32-Bit Color (ARGB8888) Main Display: Yes Mirror: Off Online: Yes Built-In: Yes LG TV: Resolution: 1920 x 1080 @ 50 Hz Pixel Depth: 32-Bit Color (ARGB8888) Mirror: Off Online: Yes Rotation: Supported Television: Yes
I tried the TV and HDMI cable using a Windows PC and it worked instantly.
Is my TV somehow incompatible with the MacBook Pro, or is my adapter faulty, or am I doing something wrong?