laggy mission control on v1.0.1

[ronit18]

I dont know whether the video is justifying the issue, but after updating to v1.0.1, on macos i feel like when i try to open mission control it is so much laggy for all apps. After closing ghostty it is back to normal but when ghostty is open its laggy. I even restarted my macbook still it was same.

I have made a help request on discord server also. this is the link to video:
https://discord.com/channels/1005603569187160125/1323881666103607458

[dvora124-wq]

i also have this issue. opening mission control (i.e. three-finger swipe up) or moving between spaces becomes very laggy when ghostty is running. resizing ghostty becomes very sluggish, too. interestingly, when i fullscreen ghostty (meaning native fullscreen, ghostty becomes its own space), the issue seems to go away.

ghostty:
version: 9459910
build: 8710
commit: 9459910

macos: intel, macos sequoia 15.2 (24C101)

[dvora124-wq]

i may have found the culprit. macos-titlebar-style is set to "transparent" by default. when i switch to "native", the problem goes away.

[Rotonen]

Wezterm had the same: wez/wezterm#5524

macOS issue?

[ronit18]

Yes its macos issue. Same issue for alacritty also.

[pblischak]

I've been having this issue too and tried setting macos-titlebar-style = native but that didn't seem to fix it. What did fix it for me was setting macos-window-shadow = false.

My current config:

font-size = 14
font-family = JetBrains Mono
shell-integration-features = no-cursor
cursor-style = block
theme = Ayu Mirage
macos-window-shadow = false

[ronit18]

No you can use macos-window-shadow. After doing some google. I found out that this issue is also faced by some alacritty terminal user on macos. So this is more of an apple issue. And have found a workaround for it.
We have to keep background-opactiy close to 1. But not 1.
background-opacity=0.995
Try setting this it may fix for you :)

[pblischak]

Thanks for the help! Setting the background opacity slightly less than 1 like you said does the trick as well

[Haouo]

Thanks a lot! It did solve the problem on my m1 mac :)

[filipwiech]

Cross-linking #4316 for posterity (perhaps one of these discussions could be closed as duplicate). 👍

[zachary822]

Maybe related, if you have more than one tab, the window preview in mission control will also be black.

[calvinanderson]

I too managed to solve this with the following added to my config:

macos-window-shadow = false

I had the same issue (and fix) with Wezterm so perhaps this is a macOS issue (or implementation issue within the OS)