Flickering/flashing while scrolling

[dabrahams]

I'm experiencing the effect described here: syl20bnr/spacemacs#12009

I'm on Big Sur; emacs-plus was installed with

brew install emacs-plus --with-mailutils --with-xwidgets

I never have this problem with the emacs-mac-port, which I used happily for years before trying emacs-plus.

[dabrahams]

I'm also seeing this when it's built without xwidgets support, FWIW.

[d12frosted]

Hey @dabrahams ,

I suspect, it might be partially related to #137. One of the suggestions - give Emacs 28a try (e.g. brew install emacs-plus@28). I haven't see any glitches for a while on the master branch.

As for Emacs Mac Port, Mitsuharu Yamamoto worked hard on the rendering side and did amazing job for it to look nice. I could 'extract' this into emacs-plus, but then it would contradict with emacs-plus goal to be a formula for GNU Emacs and stay as close as possible. Emacs Mac Port is not just a formula for brew, it's GNU Emacs with a huge amount of patches for macOS.

And now my curiousity wins. I want to know why you decided to give emacs-plus a try. 😄 Don't get me wrong, I am happy that you did and I am sad that you are getting these glitches, but I haven't used Emacs Mac Port for years and don't know how people feel about it 😄

[dabrahams]

Hi Boris, I was directed to emacs-plus by the getting-started guide for doom emacs, which has some (seemingly outdated <doomemacs/doomemacs#4663>) things to say about multi-tty support weaknesses in emacs-mac. The one other thing that's attractive to me about emacs-plus is xwidgets support, which I might use if I start reading my mail with emacs again (there's way too much HTML email out there to live without it). I could try emacs-plus@28; that might be interesting.

…

On Tue, Feb 16, 2021 at 10:59 PM Boris Buliga ***@***.***> wrote: Hey @dabrahams <https://github.com/dabrahams> , I suspect, it might be partially related to #137 <#137>. One of the suggestions - give Emacs 28a try (e.g. brew install ***@***.***). I haven't see any glitches for a while on the master branch. As for Emacs Mac Port, Mitsuharu Yamamoto worked hard on the rendering side and did amazing job for it to look nice. I could 'extract' this into emacs-plus, but then it would contradict with emacs-plus goal to be a formula for GNU Emacs and stay as close as possible. Emacs Mac Port is not just a formula for brew, it's GNU Emacs with a huge amount of patches for macOS. And now my curiousity wins. I want to know why you decided to give emacs-plus a try. 😄 Don't get me wrong, I am happy that you did and I am sad that you are getting these glitches, but I haven't used Emacs Mac Port for years and don't know how people feel about it 😄 — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#314 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAKYIJVWMIC3MYF3CYBZZTS7NSNFANCNFSM4XVNX4EA> .

-- -Dave

[d12frosted]

Indeed, I haven't seen any issues in Emacs 28 in a while. Seems like it was fixed. Not using Emacs 27 for a long time, so can't say for sure the state of this issue there. ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

…

On Friday, April 2nd, 2021 at 18:18, kohlworks ***@***.***> wrote: I was seeing this behavior on ***@***.*** multiple times a day (macOS Catalina + doom emacs). I recently switched to ***@***.*** --with-native-comp. Could bring other issues but no more flickering/flashing, which is absolutely lovely. Definitely 'feels' snappier, fwiw. Thank you for your work ***@***.***(https://github.com/d12frosted). — You are receiving this because you were mentioned. Reply to this email directly, [view it on GitHub](#314 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/ABRU3CPLPMIK7DYHG23MLYTTGXN33ANCNFSM4XVNX4EA).

[kohlsudduth]

Quick note to verify that I too have seen zero flickering issues with Emacs 28, albeit on the --with-native-comp branch (Doom Emacs, macOS Catalina). Prior to updating, the behavior occurred multiple times a day using Emacs 27. Fingers tightly crossed it's well and truly gone.

[renatoathaydes]

Unfortunately, while Emacs 28 had fixed this issue, at least for me, it's back on Emacs 29.1 :(. It really destroys the experience... however, I noticed that this only happens on my Macbook Air, but not on my Mac Pro M1... even though I installed both via brew in the exactly same way.
I suspect it has something to do with GC that gets just slow enough to cause a buffer refresh to be noticeable?