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[Launchpad Bug Tracker <359594@xxxxxxxxxxxxxxxxxx>]

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When I change the background image from "gnome-appearance-properties",
the animation of transition from an image to another is very slow (with
and without desktop effects). Running the command "top" I see Xorg
process using about 99,7% of CPU. The system hangs until the image is
fully loaded and the animation has finished.

I haven't this problem with my notebook (Acer Ferrari 4005 WLMi: AMD
Turion 64 ML-37 / 2GB RAM / ATi Radeon X700 PRO 128MB) and the same
distribution and updates (Ubuntu 9.04 64-bit beta).

Some informations of the system:

Description:	Ubuntu jaunty (development branch)
Release:	9.04 x86_64
Kernel:   2.6.28-11-generic x86_64
CPU: AMD Athlon 64 3200+
RAM: 1GB DDR
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 760/M760 Host (rev 02)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL Media IO] (rev 36)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 90)
00:0a.0 Communication controller: Agere Systems V.92 56K WinModem (rev 03)
00:0b.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller (rev 80)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon X1950 GT (rev 9a)
01:00.1 Display controller: ATI Technologies Inc Radeon X1950 GT (Secondary) (rev 9a)

** Affects: null
     Importance: Undecided
         Status: Invalid

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


** Tags: background gnome-appearance-properties hangs image
-- 
System hangs for a while when changing background image
https://bugs.launchpad.net/bugs/359594
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