Bug 164856

Summary:	mysterious bar between apps [visual]
Product:	[Plasma] plasma4	Reporter:	Maciej Pilichowski <bluedzins>
Component:	widget-taskbar	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	aseigo, lucas
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed In:
Attachments:	fake systray live example of the problem

Description Maciej Pilichowski 2008-06-24 21:03:15 UTC

Version:            (using Devel)
Installed from:    Compiled sources

mysterious bar between apps [visual]

AFAIR this is a regression. Steps.
run kate
run konq
move mouse to taskbar, move from kate entry to konq
note the black bar appearing between those two entries

Comment 1 x.para 2008-06-25 00:10:55 UTC

Created attachment 25577 [details]
fake systray

Comment 2 Andrew Lake 2008-06-25 00:47:58 UTC

Confirmed with day-old svn checkout.  It appears to occur during the taskbar animation from one state(normal, focused, minimized, etc.) to another (hover, focused, etc.).  It becomes more evident the more task items there are. Problem occurs with all with all plasma themes though it may not be as immediately obvious with very dark themes (black bar + black bar = me no see).

I almost think its a remnant of the recent task-item-flashing-during-fade-animation bug that lasted for a short time last week.

Comment 3 FiNeX 2008-06-25 11:12:01 UTC

Confirmed. I see a small 1-2px vertical black line too.

Comment 4 FiNeX 2008-06-25 13:13:42 UTC

Created attachment 25597 [details]
live example of the problem

Comment 5 Thomas Georgiou 2008-07-05 22:18:35 UTC

Are you using the nvidia drivers?

Comment 6 Aaron J. Seigo 2008-07-05 22:24:22 UTC

*** Bug has been marked as fixed ***.

Comment 7 Maciej Pilichowski 2008-07-05 22:50:59 UTC

Thomas, me -- no (intel 950).

Comment 8 Andrew Lake 2008-07-06 02:30:07 UTC

Still seeing this here: SVN version 828482.

More info:  Using Aya theme. No black bar when hovering over task item for minimized apps (no minimized element in Aya's tasks theme).  All other apps states (normal, attention) cause flickering black bar. Only happens after > 2 apps added to panel.
After fade in animation, resulting task item state (e.g. hovered, normal) is shorter than necessary - window title text slight overruns task item background.  This is more obvious when the task has a long title (konqueror pointing to this website can be a good test case.  The flashing black bar seems to fill in the rest of the space that the task item background should cover.

Hope this helps.

Comment 9 Chani 2008-07-09 05:53:10 UTC

whoa, now I'm seeing this too, on my desktop system.
it's happening only on the bottom 3 of 6 tasks (vertical panel). theme is Glassified, driver's nvidia. it's clearly the fade in&out animations that have the black bar. minimizing doesn't make a difference, but while I have the mouse down, the clicked task gets a *gray* bar.

my laptop is still running svn from about a week and a half ago and isn't having any trouble.

Comment 10 Bernhard Friedreich 2008-07-09 16:34:18 UTC

I'm having the same problem on trunk from yesterday :-(

proprietary nvidia drivers and default theme

Comment 11 rodrigo pelorosso 2008-07-13 21:17:05 UTC

I'm having the same problem on svn from yesterday 13/july. I'm using proprietary nvidia drivers and Arezzo theme.

Comment 12 rodrigo pelorosso 2008-07-18 23:46:21 UTC

I made some tests, I'm having this black bars using the nvidia proprietary drivers, but NO USING VESA Drivers.

So I guess we're screwed by nvidia once again :(

Comment 13 Martin Schnieders 2008-07-21 11:42:39 UTC

I'm also having this problem using the Glassified theme and an intel internal GMA X3100 graphic adapter.