I have a Lenovo Ideacentre 510A-15ABR with an AMD Radeon R7. It worked for a day with my LG 60", then stopped: No signal. Took it to Best Buy and it worked on their monitor.Tried it on a Sony 55". Worked for a half hour, then No signal.
Now Best Buy tells me it won't work with big screen TVs and I have to get a monitor.
Can that possibly be right?