821533 - Tab header not repainted without XRender

Status: RESOLVED INCOMPLETE

(Core :: Graphics, defect)

Description

[Mats Palmgren (inactive)]

(spawned off from bug 798846)

STR:
1. open a new window
2. in a sub-menu in the bookmark menu, click "open all in tabs", do this a few
   times to make sure the tab bar is "filled out" also after you close a few
   tabs
3. click on tab somewhere in the middle, close it
4. move the mouse away from the tab bar so that the tab resize animation
   starts
5. move the mouse back over the tab to the left of the one that is now
   the current one
=> the tab to left of the one you're now hovering gets darker -
   moving the mouse out below it and back makes the tab to the left
   darker each time (as the video shows)

(not sure if the bookmark menu step is needed, I think you just need to
open enough tabs to fill out the tab bar, even after closing a few)

video capture of the problem:
https://bugzilla.mozilla.org/attachment.cgi?id=675760

The problem occurs several times a day for me.
Nightly 20.0a1 (2012-12-10) Linux64, without graphics h/w acceleration.

Comment 1

[Mats Palmgren (inactive)]

The problem only occurs with this non-default preference setting:
gfx.xrender.enabled = false

Comment 2

[Petruta Horea [:phorea], Desktop QA]

Reproduced using ftp builds since the issue was not consistently reproducible in the builds generated by mozregression.

Last good nightly: 2012-11-14
First bad nightly: 2012-11-15

Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=dd68409d7810&tochange=a761bfc192b5

Comment 3

[Jeff Muizelaar [:jrmuizel]]

There's a lot of stuff in that regression window and nothing was super obvious to me.

Comment 4

[Petruta Horea [:phorea], Desktop QA]

Ok, I'll try bisecting further and come back with the results.

Comment 5

[Petruta Horea [:phorea], Desktop QA]

I encounter the following error each time I try to build for any changeset in this regression window:
File "/home/petrutarasa/mozilla-central/build/virtualenv/populate_virtualenv.py", line 105, in create
    raise Exception('Error creating virtualenv.')
Exception: Error creating virtualenv.

Comment 6

[Petruta Horea [:phorea], Desktop QA]

I tried on a different computer, but still couldn't obtain the builds.
Could someone please assist me in solving this virtualenv problem?

Or if someone else manage to bisect, please post the results.
Thank you.

Comment 7

[Ryan VanderMeulen [:RyanVM]]

Closing this out due to lack of activity. Feel free to reopen if it still reproduces.