4K Editing Lag on 1440p monitor but not 1080p?

[zijin_cheng]

I just got a 2160x1440 monitor to go with my regular 1920x1080 monitor, and I edit 100mbps 4K footage from my Panasonic G7 without using proxies. On my 1080p monitor, I could drag and drop 4min long video files into the library and start editing no problem and have never had any problems editing at all.

However, if I use Premiere on the 1440p monitor, the timeline freezes once I try dragging and dropping a large file but everything else is functional. I have to drag my Premiere window to the 1080 monitor before the timeline will stop freezing and start being functional again. There is a progress bar in the bottom right of the screen that says something about rendering or conforming each clip I drag, and even after the bar completes I would wait an extra 5 min but the timeline will stay unresponsive. Any ideas would be appreciated.

Please see my recorded maximum task manager usage during editing:

• CPU: 40% with occasional spikes to 100%
• RAM: 9GB
• SSD Usage: 15%
• HDD Usage: 35%
• GPU usage: 10%

Specs:

• Intel Core i7-8700
• 16GB RAM
• Premiere installed on 500GB SSD
• Footage on 2TB 7200RPM HDD
• AMD RX580 8GB
• Windows 10

[Mike Dziennik]

Trash all your user settings as a first step.

[zijin_cheng]

And generate new ones?

Can I ask how that might impact this situation? I don't have any settings that I specifically changed from defaults except for keyboard shortcuts.

[Mike Dziennik · Accepted solution]

Yes. You have a new monitor and the timeline behaviour changes depending on which monitor you have the interface on. Sounds like glitch with user interface settings.

[zijin_cheng]

Oh awesome thanks, will try that.

I should add that the timeline eventually unfreezes but that requires me sitting there waiting for upwards of 20 minutes

[thiagolunaf]

did you find a way to fix this?

[Andy 1968]

If your system works like the one in the video link below then everthing is as good as it gets for better or worse.