Bug 139318

Summary:	[GTK]Scrolling lag
Product:	WebKit	Reporter:	M <marmar>
Component:	WebKitGTK	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	bugs-noreply, janousek.jiri, nekohayo
Priority:	P3
Version:	528+ (Nightly build)
Hardware:	PC
OS:	Linux

Description M 2014-12-05 14:45:46 PST

With Ubuntu 14.10 64-bit (Intel® 965GM) there seems to be scrolling lag in WebKitGtk library (libwebkit2gtk-3.0-25 version: 2.4.6-1ubuntu1) in website play.google.com/music
I tested it in WebKit2Gtk MiniBrowser:
/usr/lib/x86_64-linux-gnu/webkit2gtk-3.0/libexec/MiniBrowser http://play.google.com/music

With Ubuntu 14.04 64-bit(ATI HD3850) (libwebkit2gtk-3.0-25 version: 2.4.4-1ubuntu1) scrolling this website is okey.

Comment 1 Jiří Janoušek 2014-12-05 23:29:55 PST

I'm very interested in this issue because it affects my WebKitGtk-based application Nuvola Player that runs Google Play Music website to integrate the web app with desktop environments.

However, I cannot reproduce it on any of my devel machines, but M can :-) I've only noticed that the Google Play Music website doesn't load with the experimental VirtualBox 3D-capable driver, but loads fine once the VirtualBox 3D support is disabled.

Can be the M's lag issue GPU related? What steps should M take to provide you with more useful information? Thank you :-)

Comment 2 Jiří Janoušek 2014-12-13 00:29:39 PST

Setting LIBGL_DRI3_DISABLE=1 to disable DRI3 can be used as a workaround for now.