我最近在我的计算机上安装了 Xorg 1.11 和 fglrx 12.6，重启系统后，一切正常。玩游戏时也很好用。我从 win7 切换回来后，unity 菜单栏/启动器和面板就消失了。（ubuntu 2d 没有这个问题）这是什么问题？有什么想法吗？
我尝试重置 unuity
hamed@linu-pc:/usr/bin$ sudo unity --reset
WARNING: Unity currently default profile, so switching to metacity while resetting the values
unity-panel-service: no process found
Checking if settings need to be migrated ...no
Checking if internal files need to be migrated ...no
Backend : gconf
Integration : true
Profile : unity
Adding plugins
Initializing core options...done
compiz (core) - Warn: failed to receive ConfigureNotify event on 0x1400004
compiz (core) - Warn: failed to receive ConfigureNotify event on 0x320078b
Initializing composite options...done
Initializing opengl options...done
Initializing decor options...done
Initializing vpswitch options...done
Initializing snap options...done
Initializing mousepoll options...done
Initializing resize options...done
Initializing place options...done
Initializing move options...done
Initializing wall options...done
Initializing grid options...done
Initializing session options...done
Initializing gnomecompat options...done
Initializing animation options...done
Initializing fade options...done
Initializing unitymtgrabhandles options...done
Initializing workarounds options...done
Initializing scale options...done
compiz (expo) - Warn: failed to bind image to texture
Initializing expo options...done
Initializing ezoom options...done
(compiz:4728): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed
WARN 2013-07-20 19:11:44 unity.favorites FavoriteStoreGSettings.cpp:139 Unable to load GDesktopAppInfo for 'ubiquity-gtkui.desktop'
ERROR 2013-07-20 19:11:45 unity.launcher.trashlaunchericon TrashLauncherIcon.cpp:62 Could not create file monitor for trash uri: Operation not supported
WARN 2013-07-20 19:11:45 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
WARN 2013-07-20 19:11:45 unity <unknown>:0 Failed to fetch paths: Process /usr/lib/bamf/bamfdaemon exited with status 1
Initializing unityshell options...done
compiz (core) - Warn: unhandled ConfigureNotify on 0xc00090!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
compiz (core) - Warn: unhandled ConfigureNotify on 0xc000a1!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
compiz (core) - Warn: unhandled ConfigureNotify on 0xc000a1!
compiz (core) - Warn: this should never happen. you should probably file a bug about this.
Initializing annotate options...done
Initializing blur options...done
Initializing clone options...done
Initializing commands options...done
Initializing cube options...done
Initializing obs options...done
Initializing rotate options...done
Initializing screenshot options...done
Initializing staticswitcher options...done
Initializing switcher options...done
Initializing water options...done
Initializing wobbly options...done
WARN 2013-07-20 19:11:45 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/libreoffice-writer.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN 2013-07-20 19:11:45 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/libreoffice-calc.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN 2013-07-20 19:11:45 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/libreoffice-impress.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN 2013-07-20 19:11:45 unity.libindicator <unknown>:0 Desktop file '/usr/share/applications/activity-log-manager-ccpanel.desktop' is using a deprecated format for its actions that will be dropped soon.
WARN 2013-07-20 19:11:45 unity.libindicator <unknown>:0 Unable to find group 'X-Activity-Log-Manager Shortcut Group'
WARN 2013-07-20 19:11:45 unity <unknown>:0 Failed to fetch paths: Process /usr/lib/bamf/bamfdaemon exited with status 1
Setting Update "main_menu_key"
Setting Update "run_key"
WARN 2013-07-20 19:11:46 unity.glib.dbusproxy GLibDBusProxy.cpp:182 Unable to connect to proxy: Error calling StartServiceByName for com.canonical.Unity.Panel.Service: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process /usr/lib/unity/unity-panel-service exited with status 1
WARN 2013-07-20 19:11:46 unity.glib.dbusproxy GLibDBusProxy.cpp:182 Unable to connect to proxy: Error calling StartServiceByName for org.gnome.Nautilus: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process /usr/bin/nautilus exited with status 1
WARN 2013-07-20 19:21:15 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
WARN 2013-07-20 19:21:30 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
WARN 2013-07-20 19:21:38 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
WARN 2013-07-20 19:23:06 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
WARN 2013-07-20 19:24:47 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
WARN 2013-07-20 19:29:36 unity <unknown>:0 Failed to fetch path: Process /usr/lib/bamf/bamfdaemon exited with status 1
有关内核 fglrx 和 Xorg 的数据：
root@linu-pc:~# uname -a
Linux linu-pc 3.2.0-49-generic-pae #75-Ubuntu SMP Tue Jun 18 18:00:21 UTC 2013 i686 athlon i386 GNU/Linux
root@linu-pc:~# X -version
X.Org X Server 1.11.3
Release Date: 2011-12-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.42-37-generic i686 Ubuntu
Current Operating System: Linux linu-pc 3.2.0-49-generic-pae #75-Ubuntu SMP Tue Jun 18 18:00:21 UTC 2013 i686
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-49-generic-pae root=UUID=9e5ae4eb-3013-43c9-a790-a9cdd85f786d ro recovery nomodeset
Build Date: 11 April 2013 01:04:30PM
xorg-server 2:1.11.4-0ubuntu10.13 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.24.4
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
root@linu-pc:~# fglrxinfo
display: :0.0 screen: 0
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Radeon HD 4600 Series
OpenGL version string: 3.3.11627 Compatibility Profile Context
root@linu-pc:/usr/bin# sudo lspci -v
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV730XT [Radeon HD 4670] (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 0276
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at fdfe0000 (64-bit, non-prefetchable) [size=64K]
I/O ports at ee00 [size=256]
[virtual] Expansion ROM at fdf00000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Kernel driver in use: fglrx_pci
Kernel modules: fglrx, radeon
root@linu-pc:/usr/bin# sudo lsmod
Module Size Used by
pppoe 17513 2
pppox 13158 1 pppoe
pci_stub 12550 1
vboxpci 22911 0
vboxnetadp 13328 0
vboxnetflt 27240 0
vboxdrv 252228 3 vboxpci,vboxnetadp,vboxnetflt
rfcomm 38139 0
bnep 17830 2
bluetooth 158479 10 rfcomm,bnep
binfmt_misc 17292 1
lp 17455 0
snd_hda_codec_hdmi 31775 1
snd_hda_codec_realtek 174313 1
snd_hda_intel 32719 5
snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80916 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25424 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
rndis_wlan 28472 0
snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event
cfg80211 178877 1 rndis_wlan
snd_timer 28931 2 snd_pcm,snd_seq
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
rndis_host 13560 1 rndis_wlan
cdc_ether 13312 1 rndis_host
usbnet 25214 3 rndis_wlan,rndis_host,cdc_ether
joydev 17393 0
ppdev 12849 0
snd 62218 20 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
psmouse 86520 0
sp5100_tco 13495 0
parport_pc 32114 1
parport 40930 3 lp,ppdev,parport_pc
mac_hid 13077 0
i2c_piix4 13093 0
serio_raw 13027 0
k10temp 12990 0
ati_agp 13242 0
soundcore 14635 1 snd
wmi 18744 0
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
fglrx 2909978 166
usbhid 41937 0
hid 77428 1 usbhid
firewire_ohci 40172 0
firewire_core 56940 1 firewire_ohci
crc_itu_t 12627 1 firewire_core
pata_atiixp 12999 0
floppy 60184 0
r8169 56368 0
更新 ：
root@linu-pc:/# /usr/lib/nux/unity_support_test -p
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Radeon HD 4600 Series
OpenGL version string: 3.3.11627 Compatibility Profile Context
Not software rendered: yes
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes
GL vertex program: yes
GL fragment program: yes
GL vertex buffer object: yes
GL framebuffer object: yes
GL version is 1.4+: yes
Unity 3D supported: yes
root@linu-pc:/# sudo -- lshw -C display
*-display
description: VGA compatible controller
product: RV730XT [Radeon HD 4670]
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=fglrx_pci latency=0
resources: irq:44 memory:d0000000-dfffffff memory:fdfe0000-fdfeffff ioport:ee00(size=256) memory:fdf00000-fdf1ffff