1005568 - Opening Firefox in maximized mode looks very annoying because of rendering

Status: RESOLVED INCOMPLETE

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

Description

[Satish]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0 (Beta/Release)
Build ID: 20140421221237

Steps to reproduce:

I have the Firefox menubar and bookmarks bar and title bar enabled. When I open Firefox, in maximized mode, then it looks like it opens a little bit below the top of screen. Exactly, the height of title bar. The it pushes up. This gives a very annoying feeling. You can see it more clearly when you have another Firefox window opened and you open another window by pressing Ctrl+N.

Comment 1

[Alice0775 White]

Regression window(m-c)
Good:
http://hg.mozilla.org/mozilla-central/rev/7225e584d6c7
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 ID:20131121122602
Bad:
http://hg.mozilla.org/mozilla-central/rev/85abacb35e23
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 ID:20131121191505
Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=7225e584d6c7&tochange=85abacb35e23

Regression window(m-i)
Good:
http://hg.mozilla.org/integration/mozilla-inbound/rev/e5dd91e7d90f
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 ID:20131121112348
Bad:
http://hg.mozilla.org/integration/mozilla-inbound/rev/f5120348a27f
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 ID:20131121112824
Pushlog:
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=e5dd91e7d90f&tochange=f5120348a27f
Regressed by:
f5120348a27f	David Anderson — Only composite changed areas in the software compositor (bug 882447, r=mattwoodrow,nrc).

Comment 2

[Lukas Blakk [:lsblakk] use ?needinfo]

Sounds annoying but likely an edge case, we're not seeing a lot of feedback on this and it's been in the product since FF28's release.  Won't track but ni? on David to see if there's a low risk backout of forward fix we could consider for uplift.

Comment 3

[David Anderson [:dvander] - inactive, e-mail if emergency]

At a glance, the impact looks pretty low given the STR (assuming it also requires software rendering), unless this is reproducible with hardware rendering too. That patch was pretty important to e10s and I'd be reluctant to back it out. There's a small amount of delicate Windows-specific changes in that patch and maybe I just missed something in there.

Comment 4

[u279076]

Satish, does this still reproduce for you?

Comment 5

[Gregory Pappas [:gregp]]

No response from reporter in 8 years; closing.