1429443 - Major painting issues with macOS High Sierra 10.13.2 on 52 ESR

Status: RESOLVED DUPLICATE of bug 1424945

(Firefox :: General, defect)

Description

[Mike Kaply [:mkaply]]

Attachment: Screenshot of problem

I upgraded from 10.13.1 to 10.13.2 and started seeing major painting issues with the ESR.

Black borders appear around windows and sometimes Windows don't paint at all.

See attachment.

This definitely seems to be 10.13.2 related.

It does not happen with the latest Firefox.

Comment 1

[:Gijs (he/him)]

I assume later versions aren't affected? Can you use mozregression --find-fix to figure out if there was a specific patch that avoids the bad behaviour in some way?

Note that the screenshot doesn't show any black borders that I can see - is that an artifact of the screenshot vs. what actually shows up to the user?

Comment 2

[Mike Kaply [:mkaply]]

Attachment: Photo of problem from Firefox 56

For some reason the black borders don't show in the screenshot. I've attached a photo from my camera.

I'm going to look at mozregression now. I was able to recreate on as recent as 56.

Comment 3

[Mike Kaply [:mkaply]]

This is the changeset that appears to have fixed it

https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=ef1033c0be43818cca1cba678c43f639d0ca4e6d&tochange=10a488d8110e2c2fd293978e3886ebe793bec1ba

Comment 4

[Markus Stange [:mstange]]

Great, that makes a lot of sense and is something we could uplift.

Comment 5

[Markus Stange [:mstange]]

And there's already an uplift request in bug 1394654. I've added a comment.

Comment 6

[Markus Stange [:mstange]]

Oh, it turns out we already knew about the 10.13.2 bug :(