compiz team mailing list archive

[ugtar <991028@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Enabling alpha blur via ccsm causes various issues including making all
windows invisible.  This happens when I use the gaussian blur method.
4xbilinear and mipmap don't cause windows to be invisible, but they do
cause various screen artifacts, and instead of alpha blur they result in
the area behind being flipped horizontally (and not blurred).

I am using Intel graphics (sandy bridge).  Please let me know if I can
provide any more info.


$ lsb_release -rd
Description:	Ubuntu 12.04 LTS
Release:	12.04


$ apt-cache policy compiz
compiz:
  Installed: 1:0.9.7.6-0ubuntu1
  Candidate: 1:0.9.7.6-0ubuntu1
  Version table:
 *** 1:0.9.7.6-0ubuntu1 0
        500 http://il.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status


$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 (rev 34)
0a:00.0 SD Host controller: O2 Micro, Inc. Device 8221 (rev 05)
0a:00.1 Mass storage controller: O2 Micro, Inc. Device 8231 (rev 03)

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/991028

Title:
  enable compiz alpha blur makes all windows invisible

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