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LG UltraFine 5K - Issues/bugs
- Thread starter iBrooker
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Would be interesting to know if that’s a general problem with external monitors and 10.15.1 or an LG Ultrafine 5k specific problem.
I have not noticed anybody mention it in any of the bug threads.
Yeah, me neither. Funny that it’s specifically „Apple‘s“ display that’s causing problems ?
I am having this exact same issue now after the update.
The brightness of screen just crank up to max every single time I connect to it.
Mine never does it on a wake from sleep. Only either a monitor plugin or reboot.
I have recently got an older version 27MD5KA-B and 2017 MBP 15" top version and the computer is very slow, even just chrome web browser with 5-6 tabs and watching Youtube or Netflix. I guess video playback is kinda trigger of the problem.
I use it in clamshell mode and first I thought it's my laptop so did all "cleaning & optimisation" but didn't help then when I plugged out and use it as standalone laptop it runs perfectly no matter how many videos it's playing.
Anyone having this issue ?
I use it in clamshell mode and first I thought it's my laptop so did all "cleaning & optimisation" but didn't help then when I plugged out and use it as standalone laptop it runs perfectly no matter how many videos it's playing.
Anyone having this issue ?
I've not used the display with the 555x/560x in some time when I had 10.14 installed. But, with my eGPU, I don't notice any lag that you're speaking about. Are you using any peripherals with the display's hub? Is the display connected directly to the MBP? Tried a different TB3 cable which supports 40GBps and 60-85W+ PD?
Still having the sleep/wake issue after updating to Catalina. This happened on my 2016 15" MBP as well as my 2019 15" MBP.
What does get the LG monitor working is:
What does get the LG monitor working is:
- logging out of my main MBP account
- logging into a separate admin account
- unplugging my Belkin cable and plugging it back in (LG monitor then comes on)
- logging out of the separate admin account and then back into my main account
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I just received my new 16" MacBook Pro (2.3 i9/32GB/1TB/5500M 4GB). I have an original UltraFine 5K purchased when I bought my 2016 MPB.
In clamshell mode (my normal setup), if I plug the UltraFine into the left side of my 16", everything works fine. However, if I plug it in on the right side, the display remains black.
If I run with the lid open and plug the UltraFine into the right side port, both screens continuously turn on and off. The actual display never appears on either, they just flash on and off.
I am using Apple's 0.8m Thunderbolt 3 cable.
Has anyone seen anything like this? Is it possible my MBP is defective?
In clamshell mode (my normal setup), if I plug the UltraFine into the left side of my 16", everything works fine. However, if I plug it in on the right side, the display remains black.
If I run with the lid open and plug the UltraFine into the right side port, both screens continuously turn on and off. The actual display never appears on either, they just flash on and off.
I am using Apple's 0.8m Thunderbolt 3 cable.
Has anyone seen anything like this? Is it possible my MBP is defective?
Definitely do a PRAM reset: https://support.apple.com/en-us/HT204063
Mine works fine connecting the 5K display on any of the 4 ports.
Strange, I probably have the same MBP and no issues at all, everything runs smooth... 4k video, lot's of tabs etc.
Just got this display (the new version) and no problems at all.
PRAM reset fixed the problem. Thanks for the suggestion.
I have dual LG5K monitors (1st edition). When I had a MBP 2016 - I had random wake problems with one or both monitors requiring reboot. Then I had a 2018 MBP with a Vega 20 and the sleep problems went away. For a year there were no issues (including Catalina). I now replaced the MBP with a 2019 MBP 16" configured with the AMD Radeon Pro 5500M 8 GB, and the wake issue, mostly with the left side monitor has returned (and is random - not every sleep). Unplugging ad replugging works, but I have USB devices connected to the back of the monitor that cause problems, so requires a reboot. Any ideas ?
My troubleshooting approach would be something like this:
- Swap the Thunderbolt cables and test that for a while to see if it's possibly related to a cable.
- Then try swapping the USB-C ports that the monitors connect to, to see if it's isolated to a particular USB-C port.
- If the issue continues to be isolated to the "left" monitor, try moving all the connected USB peripherals to the "right" monitor, and see if that changes anything.
- If so, try unplugging each USB device one at a time (connect directly to the laptop if you absolutely can't live with out it) and see if you can isolate a specific USB device that might be causing the issue.
If you have a ton of free time then you can waste it with Apple Support... I wasted a ton and they didn't tell anything how to solve it...Yep... still there for me also.
It shouldn't be a BIG difference, they operate both at 500 nits. So if both are set to the highest brightness they should be equal. I find the brightness of the LG 5K very good and a big plus over most monitors in the same pricerange which often have a brightness of 300-400 nits. Have no (brightness)problems with it. Do you you live near an Apple store where you can compare?
I actually still have my iMac 5k and set it side by side with my lg 5k displaying different colors at full screen. I had to turn down my iMac 5k 5 levels to match the brightness. My problem is that sometimes my living room gets too bright and i dont have control over it so i need to push the brightness of my displays