Problem with connecting PC to TV and receiving no signal.
Problem with connecting PC to TV and receiving no signal.
Hi, I'm trying to fix a new 65" 4K LG TV at work. This is the first time I've faced something like this. The TV uses an 11th Gen i5 with just an integrated graphics card and the latest drivers. I switched from an old driver recently. When connecting the PC to the TV, no signal appears. I've tried various cables—none work. On another PC or laptop, it works perfectly through all cables. But on this second PC, it doesn't connect at all. What could be causing this?
Check LG's website for available drivers for your TV. If needed, install them. Does the iGPU handle 4K output? Can you switch the TV to 1080p for testing? Using a video switch between PC and TV might help. Are the cable, TV, and video drivers compliant with HDCP standards? Good luck!
I'll review this after confirming the model tomorrow. Yes, the earlier TV was also a 65" LG 4K but it had noticeable black bars on the side. This one is meant for mostly static content that runs continuously in an industrial environment. According to what I know, you can only adjust settings to PC mode on the TV. I don't have a switch yet, but that's what I'm aiming for. It's uncertain, but it should work. Other older laptops or PCs connected via the same cables function perfectly. I've restarted everything at least 50 times so far. I can't change the operating system, but I'm willing to try. The company PC runs essential software that only works on Windows, and it requires IT-approved USB keys. Even updating drivers was a lengthy process due to security restrictions, taking nearly half a day to find a workaround. I'll rely on luck this time.
I could have hoped otherwise, but I shouldn't really need to. I'm just looking for a fix—this isn't my main responsibility, yet I ordered the new TV as a replacement, which makes me feel a bit accountable. I'll likely search for comparable models within the company and test the PC setup, then swap them out if it functions properly.
It seems like you're considering both technical solutions and practical alternatives. A straightforward method involves using a PC with a capture card to record the video and send it to a TV. While not the most refined approach, it’s a viable option if needed. Another possibility is exploring other forums for advice, as some users have found success with simpler setups.
It's really not their issue at all, even the smallest part is not theirs to control. They just handle the company security on this device, so they were only as supportive as allowing me to borrow extra cables for troubleshooting. Hopefully I'll be able to test it with another TV tomorrow if I can find one.