795692 - Scrolling regression on IP Board forums with D2D HWA

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[timbugzilla]

The scrolling regression described in bug 770061 can still be reproduced with D2D HWA on with the win32 moz-central PGO build built from the following change set:

https://hg.mozilla.org/mozilla-central/rev/a680fd777c3b

This bug can be reproduced with a fresh profile by simply holding down the down arrow key at the following page:

http://www.daimenhutchison.com/rugby/index.php/index

There's a big lag/stutter before normal scrolling speeds return.

A profile recorded during this is available here:

http://people.mozilla.com/~bgirard/cleopatra/?report=d447825ef05bdba0abed3e605da1f275d9ca4c27

I cannot reproduce this with D2D off.

See also Alice's test case from bug 770061

https://bugzilla.mozilla.org/attachment.cgi?id=666290

Comment 1

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

See also https://bugzilla.mozilla.org/attachment.cgi?id=666290, which reproduces more easily on too-fast HW.

Comment 2

[timbugzilla]

Some Disqus comment sections on pages are a bit slow/lagged too. e.g.

http://www.wired.com/reviews/2012/09/amazon-kindle-paperwhite/all/

Comment 3

[Bas Schouten (:bas.schouten)]

This is fixed by minimizing intermediate surfaces.

Comment 4

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Testing in the 10/3 nightly on win7/d3d10 after bug 778367, I no longer see any text rendered in

https://bugzilla.mozilla.org/attachment.cgi?id=666290

Will open a new bug for that.

I couldn't reproduce on any of the other test cases here, so if those have been fixed in the 10/3 nightly, please close this bug.

Comment 5

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Bas tells me this is bug 797314.  Will recheck after we respin with that.

Comment 6

[RNicoletto]

Testacase URL in comment 0 and comment 2 are WFM.

Mozilla/5.0 (Windows NT 6.1; rv:23.0) Gecko/20100101 Firefox/23.0

Graphics

Adapter DescriptionIntel(R) HD Graphics 4000
Adapter Driversigdumd32 igd10umd32 igd10umd32Adapter 
RAM Unknown
ClearType ParametersGamma: 2200 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 100 
Device ID0x0166
Direct2D Enabled true
DirectWrite Enabled true (6.1.7601.17789)
Driver Date 2-22-2013
Driver Version 9.17.10.3040
GPU #2 Active false
GPU Accelerated Windows1/1 Direct3D 10
Vendor ID0x8086WebGL RendererGoogle Inc. -- ANGLE (Intel(R) HD Graphics 4000)
AzureCanvasBackenddirect2dAzureContentBackenddirect2dAzureFallbackCanvasBackendcairo