从昨天上次系统升级之后，compiz 的 CPU 使用率就变得很疯狂：
horacio@horacio-xps13:~$ top
top - 15:09:10 up 3:31, 2 users, load average: 2,62, 2,75, 2,59
Tasks: 261 total, 2 running, 259 sleeping, 0 stopped, 0 zombie
%Cpu(s): 50,1 us, 4,6 sy, 0,0 ni, 45,1 id, 0,2 wa, 0,0 hi, 0,0 si, 0,0 st
KiB Mem: 7731228 total, 6252616 used, 1478612 free, 239548 buffers
KiB Swap: 15871996 total, 0 used, 15871996 free, 1451684 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2394 horacio 20 0 1929m 407m 44m S 126,3 5,4 80:07.62 compiz
5908 horacio 20 0 3242m 2,1g 59m S 60,2 28,6 30:27.73 firefox
1163 root 20 0 697m 433m 72m S 25,3 5,7 14:48.66 Xorg
6017 horacio 20 0 905m 263m 34m S 4,0 3,5 2:07.85 plugin-containe
6669 horacio 20 0 707m 20m 13m S 3,0 0,3 0:01.31 gnome-terminal
6989 horacio 20 0 24876 1708 1128 R 0,7 0,0 0:00.05 top
2374 horacio 20 0 20236 940 768 S 0,3 0,0 0:05.01 syndaemon
除了 Firefox 之外什么都不做，如果我打开其他程序，情况会变得更糟。乐趣不停，这绝对不正常。
当我启动 Lubuntu 会话（没有 compiz）时，我没有遇到任何问题。
有什么想法吗？有什么建议吗？拜托？
在配备英特尔显卡的 Dell XPS 13 开发人员版上使用 Ubuntu 13.10。
这是lspci的结果：
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QS77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)