Open Bug 1336898 Opened 8 years ago Updated 2 years ago

E10s causes grayscale AA rendering of text on some websites

Categories

(Core :: Graphics: Text, defect, P3)

51 Branch
Unspecified
Linux
defect

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()

People

(Reporter: bugs, Unassigned)

Details

(Whiteboard: gfx-noted)

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(5 files)

Attached image gmail(bad).png
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:51.0) Gecko/20100101 Firefox/51.0 Build ID: 20170125172221 Steps to reproduce: Make sure e10s is enabled, go to certain websites (e.g. gmail). Actual results: Text is displayed with grayscale AA rendering. Expected results: The text should be displayed with subpixel rendering (as it correctly is if multiprocess is turned off or blocked by an incompatible addon). I tested this on Ubuntu 16.04 withe a fresh profile; the problem still seems to be there in nightly as well.
Attached image text3xbad.png
Attached image text3xgood.png
OS: Unspecified → Linux
Component: Untriaged → Graphics: Text
Product: Firefox → Core
Seems to be related to bug 1307833.
Status: UNCONFIRMED → NEW
Ever confirmed: true
Priority: -- → P3
Whiteboard: gfx-noted
Isn't bug 1307833 all about Firefox's UI? All the fonts in the tabs, hamburger menu, etc. are all fine in my case. The problem I see is with the font rendering of certain websites. Though I really don't know enough to say they aren't related in some way. I have noticed that in some cases they only manifest themselves once a scrollbar is moved. I've added some before/after scroll pictures of an example.
Attached image beforescroll.png
Attached image afterscroll.png

Jackson, do you still encounter this issue?

Flags: needinfo?(cranberrydoughan)
Severity: normal → S3

I no longer experience this issue, sorry had forgotten about it so it presumably got fixed at some point. Thou now I'm using KDE, not Unity (Kubuntu 22.04), not sure if that had something to do with it.

Flags: needinfo?(cranberrydoughan)
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