Has anyone been able to resolve this issue? I'm having the same problem, and it’s driving me nuts.
Background:
- My Lenovo B570 used to connect well to my Samsung LCD. The laptop screen would flash and auto-resize the resolution a bit and then appear on my TV. Everything was great.
- As time progressed, I started having problems with the cloning process. Sometimes it would clone; sometimes it wouldn’t. I’d unplug and replug the HDMI a few times, and eventually it would clone. Sometimes I would restart the computer and that would sort out the problem.
- I checked using with multiple HDMI cables and multiple ports on my TV. Most importantly, when I plug in the cable into my computer, the TV says "Searching for Signals", but when the cable is unplugged, it says "No signal". I also tried it with a different HDMI cable. Thus, I know it probably isn't the cable.
- I restarted the computer in safe mode with the HDMI plugged in, and lo and behold, the cloning works. Thus, I know it isn't the HDMI port on either my laptop or TV.
- I attempted reinstalling the driver for the Intel HD graphics 3000. The cloning works immediately after the driver is installed, but upon reboot, the cloning doesn't work. Note that the laptop resolution doesn’t auto-resize like it used to.
- I attempted reinstalling the drivers for the Intel chipset. That didn't work either.
Does anybody have any ideas about what's going on?