I just purchased this monitor LG32UL950 and the only way I can get my Mac(s) to display is by resetting the SMC. Then once I disconnect and try to replug I get the same issue. Please assist.
I found a previous post and looked at an Apple Display article which does not address the issue.
Thanks
MacBook Pro 16″, macOS 11.0
any Docks or adapters involved?
Are you using a genuine ThunderBolt-3 cable to make the connection, and not a cable with only USB capabilities?
The regular cable that comes with the monitor does not allow for full video/data transfer. You can find a 40Gbps cable on amazon for cheap.
JBenjamin1980 wrote:
You would think it would come with the correct cable but I wouldn’t rely on them sending you the correct replacement.
It is usually a problem of "lowest bidder" cables, not incorrect cables. Very high data rates require specially made cables. Display makers just want to throw a cable, any cable, into the box so you can get a picture and not return the display.
What is the benefit of using the USB-C Thunderbolt cable over the regular USB-C cable that was provided with the LG 32UL950? I have this same display and found the same issues when connecting to my Mac Mini M1.
Hey thanks for the quick response! I’ve got an Apple Rewards credit to use, so I can pickup one today from our local Apple store. I guess I would benefit as far as when opening applications, working with video production, etc. with the TB3 connection, I assume I am getting the same quality of resolution with the standard USB-C cable? I hope the swapped cable will do the trick, wonder if LG would replace the TB3 cable that seems to be faulty?
I picked up the Apple Thunderbolt 3 Pro Cable (2m), I needed a little longer cable than 0.8m than the standard Apple TB3 cable. I am still having issues with this cable, or maybe I need to tweak a few things -- I need to nail it down if it's just something going on with my M1 or a particular setting. Would you tell me exactly how you have your connection setup with your 32UL950 monitor (your System Preferences setting, the monitor setting and which ports are you using from the M1 to LG monitor? I appreciate your help.
Sorry for the delay. I read some discussion boards that you may need to reset the SMC but that with the new M1 mini mac that may be an issue. I was using the intel chip Macbook Pro 13. I connected the laptop to the USB C port and I have the default setting under Display in system preference.
I found the problem was the cable that LG provided. I swapped it with a 40Gbps thunderbolt cable and it functions as it’s supposed to.
Thanks for replying.
You would think it would come with the correct cable but I wouldn’t rely on them sending you the correct replacement.
You are probably right -- I wish Apple still made their own displays! I gave up my two 27" Thunderbolt Displays as I was ready for one large one and wanted 4K.
LG 32UL950 Display
