1191263 - Content got blurred when using horizontal scrollbar

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[dakur]

Attachment: Captured behaviour

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0
Build ID: 20150629114848

Steps to reproduce:

Clicked and dragged the horizontal scrollbar.


Actual results:

Content with overflow: auto got blurred (long coloured lines per line).


Expected results:

Just see the rest of the content.

Comment 1

[dakur]

P.S.: Example of this behaviour on https://www.eduid.cz/cs/tech/sp/shibb-2.4

Comment 2

[dakur]

More info - tested on:
- Ubuntu 14.04 LTS (64bit), Firefox 39.0 - described behaviour
- Windows 7 (64bit), Firefox 39.0 - normal/expected behaviour

I've tried also to make new firefox profile - still the same on Ubuntu, so it is probably really Firefox problem.

Comment 3

[Loic]

Attachment: video.webm

I converted your mp4 to webm because the file was not readable.

Comment 4

[Loic]

I'm not able to reproduce the issue with FF39 on Win 7, I tried with HWA on/off, no issue.

Can you type about:support in the location bar and copy here the section "graphics", please.

Comment 5

[dakur]

But I wrote that on Win7 it has normal/expected behaviour (=> that means no problem). It makes described on Ubuntu.

Comment 6

[u279076]

(In reply to dakur from comment #5)
> But I wrote that on Win7 it has normal/expected behaviour (=> that means no
> problem). It makes described on Ubuntu.

We still need a copy of about:support from your Firefox profile on Ubuntu.

Comment 7

[dakur]

Attachment: about_support-export-as-data.json

Adding about:support information. Now I reproduced the same error on another Ubuntu machine (same Ubuntu and Firefox version).

Comment 8

[u279076]

Can you please check if this happens with the latest Firefox Nightly from https://nightly.mozilla.org/?

Comment 9

[dakur]

I've tested it and it looks like it works correctly.

Comment 10

[u279076]

Thanks, with Firefox 39, are you using our build or the one Canonical ships?

Comment 11

[dakur]

Canonical, the default preinstalled one.