Blur does not work on Kubuntu 11.04

[bigbrovar]

I just installed the beta version of Kubuntu 11.04 which ships with kde 4.6.1, I noticed that the blur effect which works fine with Kubuntu 10.10 no longer works. When I checked system settings I can see that blur is enabled but the actual effect does not work (like non of the semi transparent goodies ) and disabling the effect shows no difference what so ever.

here are some information about my hardware
My laptop is running the Intel Arrandale graphic chip.
On Kubuntu 10.10 I am using the Intel X driver version 2.12
On Kubuntu 11.04 beta I am using Intel X driver version 2.14

The kernel version on 10.10 is 2.6.35 while 11.04 is 2.6.38.

Can anyone confirm to me if the intel arrandale driver has some functionality blacklisted in kde 4.6.1? I would really appreciate feed back on this so I know whether this is an isolated issue, a kubuntu bug or an upstream bug.

[sithlord48]

i recall the blur effect dying for me some where around kde.4.6.0 . there is not black listed stuff in my ~/.kde/share/config/kwinrc this would be the file for you to look in. i have the same issue with blur on it does nothing (this is with out restarting kwin only the effects after turning it on)



*-display:0
description: VGA compatible controller
product: Mobile 945GME Express Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:16 memory:98280000-982fffff ioport:60f0(size=8) memory:80000000-8fffffff memory:98300000-9833ffff

[bigbrovar]

Someon also suggested same. I check the kwin driver blacklist to see if my display driver is listed. I checked and it has not been blacklisted from running blur. Just felt to add that.

[ktech]

I did some looking into this issue and have discovered this.
http://ubuntuforums.org/showthread.php?t=1723748

[bigbrovar]

I filed a bug on the issue if this affects you, u might want to confirm https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/761539
https://bugs.launchpad.net/ubuntu/+source/kdebase-workspace/+bug/761530

[claydoh]

https://bugs.kde.org/show_bug.cgi?id=270942
and also
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/753370

if you are willing, you can use the xorg-edger's bleeding edge ppa if you want blur back, tho sometimes it breaks between updates (which are fairly often)

[schnelle]

http://blog.martin-graesslin.com/blog/2011/04/why-blur-does-not-work-in-kubuntu-natty-with-intel/