[regression] Tray region of the panel is not redrawn when notify-osd is on top

[Steve Magoun]

A red rectangle is sometimes drawn around notification bubbles. The rectangle disappears when the notification is redrawn (such as when it is fading away). This is a recent regression in 12.10; I first noticed the problem just after the release of 12.10 beta 1.

Hardware is a MacbookPro 3,1 with NVIDIA 8600M GT. I am using nvidia-current 304.43-0ubuntu3.

To reproduce:
1) Press a hotkey such as brightness up/down

Expect results:
Brightness changes, and the notification is displayed with no artifacts

Actual results:
Brightness changes, and the notification is displayed. The notification may have a red rectangle around the top of the notification (see attached video).

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: notify-osd 0.9.34-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-14.15-generic 3.5.3
Uname: Linux 3.5.0-14-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.5.1-0ubuntu7
Architecture: amd64
Date: Wed Sep 12 13:03:46 2012
GtkTheme: Radiance
IconTheme: ubuntu-mono-light
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
MachineType: Apple Inc. MacBookPro3,1
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-14-generic root=UUID=4b3d81ed-fb5d-4946-97c0-ec537e1bfa3f ro quiet splash vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.7+1ubuntu3
 libgl1-mesa-glx 9.0~git20120903.e1673d20.is.git20120821.c1114c61-0ubuntu1
 libdrm2 2.4.39-0ubuntu1
 xserver-xorg-video-intel 2:2.20.6-0ubuntu1
 xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
SourcePackage: notify-osd
UpgradeStatus: Upgraded to quantal on 2012-08-07 (36 days ago)
WindowManager: compiz
dmi.bios.date: 03/05/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP31.88Z.0070.B07.0803051658
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F4238BC8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F4238BC8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP31.88Z.0070.B07.0803051658:bd03/05/08:svnAppleInc.:pnMacBookPro3,1:pvr1.0:rvnAppleInc.:rnMac-F4238BC8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F4238BC8:
dmi.product.name: MacBookPro3,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Omer Akram (om26er)]

Its probably more of a unity issue.

[Omer Akram (om26er)]

This one started after GLES changes landed. (I think there is one report on that already)

[Omer Akram (om26er)]

Its not red though, in my cases its generally of the same color as BG

[Neil J. Patel (njpatel)]

After speaking to the Compiz guys, it seems this is a bug in notify-osd, as it only knows about the background average colour that we calculate, and hence it must be not clearing an area correctly. Re-assigning.

[Mirco Müller (macslow)]

Steve, is there anything else - apart form the synchronous notification - that would help me reproduce this? I've not been able to trigger this here on my system (0.9.34-0ubuntu5, GTX 580, nvidia-current 304.43-0ubuntu5). Actually that kind of bug I've never seen before.

[Steve Magoun (smagoun)]

@Mirco - I haven't been able to reproduce this in any way except via notifications.

I confirmed Omer's observation, the color of the rectangle is related to the colors in the desktop background. I switched from the default Ubuntu background to a blue desktop background; the color of the rectangle changed from red to blue.

Further experimentation shows the incorrectly-drawn rectangle seems to be the top panel redrawing - it's the same size/shape/position as the panel.

[Omer Akram (om26er)]

I can easily reproduce this issue here on SandyBridge.

1. make sure desktop have the focus (happens if there's an app running as well).
2. change volume

[Sebastien Bacher (seb128)]

I almost overlooked that one due to the title, thanks to Neil pointing it. For me it's not "around notify-osd" but "around indicator", which seems to be what the screenshot points there?

[Daniel van Vugt (vanvugt)]

Thanks seb128. With a fresh pair of eyes today I agree, it looks like the tray region of the unity panel being damaged (but failing to redraw) when notify-osd is above it.

This should be handled by UnityScreen::compizDamageNux ... and there is code to redraw the panel itself in this case. But maybe that's not always redrawing the tray rectangle too?

[Sebastien Bacher (seb128)]

extra detail, the "notification is over the panel" happens only if I do:

$ gsettings set com.canonical.notify-osd multihead-mode 'focus-follow'

if the focus is set to not follow the bubble is under the panel, in which case the artifact is not a rectangle but just a colored line at the bottom of the panel

[Bilal Akhtar (bilalakhtar)]

Bug #1059731 seems to be very similar to this one, though I can't reproduce either. Daniel, do you think these two issues are caused by the same code?

[Amr Ibrahim (amribrahim1987)]

Here is what I experience:

A graphical glitch (orange straight line) appears above the sound volume confirmation bubble when the mouse pointer travels over it. See the attached screencast.

[Amr Ibrahim (amribrahim1987)]

A workaround to solve this is to disable the Effects plugins in CompizConfig Settings Manager.

After I disabled both 'Animations' and 'Fading Windows' to gain a performance boost, I noticed that the graphical glitches above the sound bubble disappeared. Don't disable 'Window Decoration' or you'll lose the outside frame and the minimize, maximize & close buttons.

Actually I hit two birds with one stone; got rid of the glitches and gained a performance boost :D

[Daniel van Vugt (vanvugt)]

It's possible the proposed fix for bug 1070735 might fix this.

[Ivan Katanović (igadmile-deactivatedaccount)]

Can confirm that fix for bug 1070735 fixes this bug also. It disappeared after unity 6.12 update that came today.

[Daniel van Vugt (vanvugt)]

Confirmed. Updating to the proposed Unity 6.12 packages fixes the bug.

[Rolf Leggewie (r0lf)]

quantal has seen the end of its life and is no longer receiving any updates. Marking the quantal task for this ticket as "Won't Fix".