I was happy to see GM finally upgraded the RES system with HDMI port starting in 2017 but I have yet to figure out what it's good for. We've had our suburban premier for 8mos now and I have yet to get anything to work correctly when using the HDMI input.
I've attempted to connect three different devices and either the system doesn't recognize it and screens remain blank or it will display the device but only in 640x480. When changing device output to 720p the truck does not accept it and remains at 640x480. It will display an xbox system but in a much smaller format so only a portion of the screen is being used.
I've seen many posts surrounding the issues but I haven't seen too many regarding the hdmi not working correctly. Were there software issues with 17 models? The software side of things is the only thing I can think of but my dealer of course had no idea when asked. Have any others had these issues?
I've attempted to connect three different devices and either the system doesn't recognize it and screens remain blank or it will display the device but only in 640x480. When changing device output to 720p the truck does not accept it and remains at 640x480. It will display an xbox system but in a much smaller format so only a portion of the screen is being used.
I've seen many posts surrounding the issues but I haven't seen too many regarding the hdmi not working correctly. Were there software issues with 17 models? The software side of things is the only thing I can think of but my dealer of course had no idea when asked. Have any others had these issues?
Last edited: