I haven’t seen the issue since doing this: might be the solution.
Also, I’ve not noticed any side effects, visual or otherwise. If anything just seems
Happy new year all,
Sent from my iPhone
On 27 Dec 2019, at 19:13, Allan Odgaard
On 8 Dec 2019, at 20:54, mocenigo wrote:
I HAVE GOOD NEWS (perhaps). I observed a similar bug in Outlook for mac. If
this is caused by the same bug in Catalina, Apple will fix it, and then it
will be useful for us as well. I know the argument is thin, but there is
always hope ;-)
A user on the cocoa-dev list is also experiencing issues with lack of redraw after scroll
on macOS 10.15, they shared this screen capture from a user:
Here the bottom part is missing, so it does very much appear to be a macOS 10.15 issue,
also because in TextMate, line numbers and main text view are different views, yet both
are “clipped” (missing updates) the same way, and the screen capture shared earlier, shows
that what got redrawn is exactly 640 pixels wide, which is not an unreasonable
tile/texture size when doing window compositing.
However, there is one “non-standard” thing that TextMate does: It opts out of responsive
scrolling (this is necessary to properly synchronise line numbers with the document
Therefore I would suggest people affected to try to enable responsive scrolling, just to
rule this out, run the following in a terminal:
defaults write com.macromates.TextMate enableResponsiveScroll -bool YES
You will have to relaunch TextMate afterwards.
The only side-effect of this is that sometimes when scrolling a document, the line
numbers will scroll with a sort of elastic delay.
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