Yeah see, I expected this response based on what I've seen in this forum. If you can't accept that then maybe you should be using dual boot instead of a VM. And in particular if you stretch the capabilities of the hardware simulation (let's say by using 4K graphics and probably not tuning the graphics and CPU settings properly), then you can expect reduced performance. Personally I don't see the mystery: virtual hardware will always perform worse than physical hardware. The more normal definition is 'failure of a documented feature to work as intended'. Thanks, that wasn't a definition I was previously familiar with. Mpack wrote:Ok, so you define 'bug' as 'failure to perform to my expectations'. Mac's with retina displays have been the standard for years.

I'm also frankly shocked a bug of this severity could be left open for so long. This solution should be stickied until the fix is in. This has been a problem for YEARS and made Ubuntu on MacOS hosts nearly unusable.Ĭompletely rage inducing. Use Low resolution on the VirtualBoxVM.app and do not use any scale settings aka keep it at 100%. Now in full-screen mode, with 'auto-resize guest display' selected, on my 13-inch MacBook Pro screen the Ubuntu display settings show 1440x900 and everything looks good and works fast. I also reduced the display scale factor from 200% to 100% and selected the 'VBoxSVGA' graphics controller. Gscelsi wrote:I am using macOS Catalina 10.15.2 on MacBook Pro 13-inch 2017, VirtualBox 6.0.18 running Ubuntu 19.10 Thank you so much! gscelsi Posts: 1 Joined: 9. I left the VB manager in full resolution. You need to right-click on '/Applications/VirtualBox.app', choose 'Show Package Contents' and navigate to the 'Resources' folder, as shown in the screen shot posted by 63BottlesOfBeer. Note that the 'Open in Low Resolution' flag must be set on the 'VirtualBoxVM.app' file, not on the VirtualBox manager.

No need to lower the resolution of the entire Mac. System is no longer impossibly sluggish and audio no longer crashes even using multiple sources at the same time. The instructions from 63BottlesOfBeer on 27 Feb. I am using macOS Catalina 10.15.2 on MacBook Pro 13-inch 2017, VirtualBox 6.0.18 running Ubuntu 19.10

Virtualbox mac emulator slow