When i connect monitor then switch desktop on screen macbook feel like 50hz. I tried change some monitor and update new version macOS but it's still the same.
So, how to fix this? Is the problem caused by the GPU?
Thank you.
This is video my issue:
[Link edited by Moderator]
Hello luunguyen8,
Thanks for posting in the Apple Support Communities. We're happy to look into this with you. It sound as though you're having issues with the resolution with the external monitor, you're connecting to your MacBook Pro. If you haven't done so yet, check out If your external display isn't detected or appears blurry when connected to your Mac - Apple Support. Below we've highlighted the section from this article that may be most helpful.
If your display appears blurry
If images or text on your display appear blurry or pixelated, check the resolution and brightness of your display.
Adjust the resolution
1. From the Apple menu, choose System Preferences, then click Displays.
2. In Display Settings, select the external display in the sidebar, then press and hold the Option key while you click Scaled to see additional resolutions.
3. Select a resolution, then click Done.
If the expected resolution doesn't appear for your display, check the specifications page to see what display resolutions your Mac supports.
Best regards.
Macbook pro 14 base. switch desktop lag
