Bugzilla

(In reply to Glenn Watson [:gw] from comment #17)
> I wasn't able to reproduce this on any of the URLs or the attached test case.
> 
> I _think_ I had all the config values set correctly, but it's possible I missed one, or there is something else different between our systems causing it to not occur here.
> 
> Could you change `layout.display-list.retain` in `about:config` to false, restart the browser and see if you can still reproduce the bug with that setting changed? That might help us identify if it's similar to https://bugzilla.mozilla.org/show_bug.cgi?id=1589800.

layout.display-list.retain = false or true has no effect on the crash. What makes Nightly crash are 2 options:

gfx.webrender.quality.force-subpixel-aa-where-possible = true  (this pref wasn't needed before https://phabricator.services.mozilla.com/D75465)
and the compositor enabled.
Other factor could be intel iGPU notebook, screen resolution 1360x768

(In reply to Glenn Watson [:gw] from comment #17)
> I wasn't able to reproduce this on any of the URLs or the attached test case.
> 
> I _think_ I had all the config values set correctly, but it's possible I missed one, or there is something else different between our systems causing it to not occur here.
> 
> Could you change `layout.display-list.retain` in `about:config` to false, restart the browser and see if you can still reproduce the bug with that setting changed? That might help us identify if it's similar to https://bugzilla.mozilla.org/show_bug.cgi?id=1589800.

layout.display-list.retain = false or true has no effect on the crash. What makes Nightly crash are 2 options:

gfx.webrender.picture-caching  = true  (If I disable picture caching, I dont get any crash)
gfx.webrender.quality.force-subpixel-aa-where-possible = true  (this pref wasn't needed before https://phabricator.services.mozilla.com/D75465)
and the compositor enabled.
Other factor could be intel iGPU notebook, screen resolution 1360x768