Yestarday i've updated my kubuntu (i update system nearly every day) and today i found, that any plasma animations causes high CPU load and immediately disabling kwin effects. After enabling by alt+shift+f12, any plasma animation drops kwin effects again. X-restart as well as system reboot didn't help. If i disable stability check in desktop effects settings, kwin hangs with high CPU usage for a long time after initiating any plasma animation.
Those of effects, that not related with plasma animation (kwin translucancy, wobbly windows) are OK.
I took a look for install logs and found mesa-* there. Then i've downgraded mesa-* to maverick version, and all seems ok after that. Then i saw this in changelog for mesa:
== 7.10.2-0ubuntu2 ==
[ Felix Geyer ]
* Add 114_intel_dri_renderer_string.diff: Re-add "GEM" to the dri renderer
string of the intel driver. Removing it breaks KDE's detection for the blur
effect. (LP: #753370)
I have intel card and maybe this change is the cause.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: libegl1-mesa 7.9~git20100924-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: kwin
DRM.card0.LVDS.1:
status: connected
enabled: enabled
dpms: On
modes: 1400x1050 1024x768
edid-base64: AP///////wANrwgVAAAAADUOAQOAHhd4CgVgl1dRiUweUFQACAABAQEBAQEBAQEBAQEBAQEBMCp4IFEaEEAwcDQAMOQQAAAYAAAA/gBOMTUwUDUKICAgICAgAAAA/gBDTU8KICAgICAgICAgAAAA/ABOMTUwUDUtTDAxCiAgAN4=
DRM.card0.VGA.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
Date: Wed Apr 20 18:30:07 2011
DistUpgraded: Log time: 2011-04-03 19:14:18.998679
DistroCodename: natty
DistroVariant: kubuntu
DkmsStatus:
aksparlnx, 3.2: added
vboxhost, 4.0.4, 2.6.38-8-generic, i686: installed
vboxhost, 4.0.4, 2.6.38-7-generic, i686: installed
vboxhost, 4.0.4, 2.6.35-28-generic, i686: installed
EcryptfsInUse: Yes
GraphicsCard:
Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:30aa]
Subsystem: Hewlett-Packard Company Device [103c:30aa]
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Hewlett-Packard HP Compaq nc6320 (RU406EA#ACB)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=en_US
LANG=en_US.UTF-8
LC_MESSAGES=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=f9837d73-b5b3-43e9-acb4-261a10859031 ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: mesa
UpgradeStatus: Upgraded to natty on 2011-04-03 (16 days ago)
dmi.bios.date: 04/17/2007
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68YDU Ver. F.0D
dmi.board.name: 30AA
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 58.12
dmi.chassis.asset.tag: CNU7350GLS
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68YDUVer.F.0D:bd04/17/2007:svnHewlett-Packard:pnHPCompaqnc6320(RU406EA#ACB):pvrF.0D:rvnHewlett-Packard:rn30AA:rvrKBCVersion58.12:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq nc6320 (RU406EA#ACB)
dmi.product.version: F.0D
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.9~git20100924-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.9~git20100924-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
By the way, i found old 7.10.2-0ubuntu1 version of mesa packages in apt cache and installed it. Plasma is working well with this version.