大家好，我刚刚设置并安装了 Ubuntu 的所有更新，但 Unity 栏上的几个图标没有显示，系统设置、终端和垃圾图标都显示灰色框。有什么想法吗？为什么会发生这种情况？
我正在运行的硬件是：
PCI (sysfs)
ally-inspiron-n5110
description: Computer
width: 32 bits
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 3189MiB
*-cpu
product: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
version: 6.10.7
serial: 0002-06A7-0000-0000-0000-0000
size: 800MHz
capacity: 800MHz
width: 64 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 x2apic popcnt xsave avx lahf_lm ida arat epb xsaveopt pln pts tpr_shadow vnmi flexpriority ept vpid cpufreq
configuration: id=0
*-logicalcpu:0
description: Logical CPU
physical id: 0.1
width: 64 bits
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 0.2
width: 64 bits
capabilities: logical
*-logicalcpu:2
description: Logical CPU
physical id: 0.3
width: 64 bits
capabilities: logical
*-logicalcpu:3
description: Logical CPU
physical id: 0.4
width: 64 bits
capabilities: logical
*-logicalcpu:4
description: Logical CPU
physical id: 0.5
width: 64 bits
capabilities: logical
*-logicalcpu:5
description: Logical CPU
physical id: 0.6
width: 64 bits
capabilities: logical
*-logicalcpu:6
description: Logical CPU
physical id: 0.7
width: 64 bits
capabilities: logical
*-logicalcpu:7
description: Logical CPU
physical id: 0.8
width: 64 bits
capabilities: logical
*-logicalcpu:8
description: Logical CPU
physical id: 0.9
width: 64 bits
capabilities: logical
*-logicalcpu:9
description: Logical CPU
physical id: 0.a
width: 64 bits
capabilities: logical
*-logicalcpu:10
description: Logical CPU
physical id: 0.b
width: 64 bits
capabilities: logical
*-logicalcpu:11
description: Logical CPU
physical id: 0.c
width: 64 bits
capabilities: logical
*-logicalcpu:12
description: Logical CPU
physical id: 0.d
width: 64 bits
capabilities: logical
*-logicalcpu:13
description: Logical CPU
physical id: 0.e
width: 64 bits
capabilities: logical
*-logicalcpu:14
description: Logical CPU
physical id: 0.f
width: 64 bits
capabilities: logical
*-logicalcpu:15
description: Logical CPU
physical id: 0.10
width: 64 bits
capabilities: logical
*-pci
description: Host bridge
product: 2nd Generation Core Processor Family DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 09
width: 32 bits
clock: 33MHz
configuration: driver=agpgart-intel
resources: irq:0
*-pci:0
description: PCI bridge
product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 09
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:40 ioport:e000(size=4096) memory:f5000000-f60fffff ioport:e0000000(size=301989888)
*-display
description: VGA compatible controller
product: nVidia Corporation
vendor: nVidia Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:16 memory:f5000000-f5ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:f6000000-f607ffff
*-multimedia
description: Audio device
product: GF108 High Definition Audio Controller
vendor: nVidia Corporation
physical id: 0.1
bus info: pci@0000:01:00.1
version: a1
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=HDA Intel latency=0
resources: irq:17 memory:f6080000-f6083fff
*-display
description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:57 memory:f6400000-f67fffff memory:d0000000-dfffffff ioport:f000(size=64)
*-communication
description: Communication controller
product: 6 Series/C200 Series Chipset Family MEI Controller #1
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=mei latency=0
resources: irq:16 memory:f7b0a000-f7b0a00f
*-usb:0
description: USB Controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:16 memory:f7b08000-f7b083ff
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=HDA Intel latency=0
resources: irq:58 memory:f7b00000-f7b03fff
*-pci:1
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: b4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:41
*-pci:2
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2
vendor: Intel Corporation
physical id: 1c.1
bus info: pci@0000:00:1c.1
version: b4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:42 ioport:d000(size=4096) ioport:f3200000(size=1048576)
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: eth0
version: 05
serial: 78:2b:cb:e0:4d:e2
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.1.3 latency=0 multicast=yes port=MII speed=100Mbit/s
resources: irq:46 ioport:d000(size=256) memory:f3204000-f3204fff memory:f3200000-f3203fff
*-pci:3
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: b4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:43 memory:f7a00000-f7afffff
*-network
description: Wireless interface
product: Centrino Wireless-N 1030
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:09:00.0
logical name: wlan0
version: 34
serial: bc:77:37:3b:d2:6f
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn driverversion=3.0.0-16-generic firmware=17.168.5.1 build 33993 latency=0 multicast=yes wireless=IEEE 802.11bgn
resources: irq:56 memory:f7a00000-f7a01fff
*-pci:4
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5
vendor: Intel Corporation
physical id: 1c.4
bus info: pci@0000:00:1c.4
version: b4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:44 memory:f7900000-f79fffff
*-usb
description: USB Controller
product: uPD720200 USB 3.0 Host Controller
vendor: NEC Corporation
physical id: 0
bus info: pci@0000:0b:00.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:16 memory:f7900000-f7901fff
*-pci:5
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 8
vendor: Intel Corporation
physical id: 1c.7
bus info: pci@0000:00:1c.7
version: b4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:45 ioport:b000(size=8192) memory:f6800000-f78fffff ioport:f2100000(size=17825792)
*-usb:1
description: USB Controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:23 memory:f7b07000-f7b073ff
*-isa
description: ISA bridge
product: HM67 Express Chipset Family LPC Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: latency=0
*-storage
description: SATA controller
product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 04
width: 32 bits
clock: 66MHz
capabilities: storage ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:47 ioport:f0b0(size=8) ioport:f0a0(size=4) ioport:f090(size=8) ioport:f080(size=4) ioport:f060(size=32) memory:f7b06000-f7b067ff
*-serial UNCLAIMED
description: SMBus
product: 6 Series/C200 Series Chipset Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 04
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:f7b05000-f7b050ff ioport:f040(size=32)
答案1
我不确定是什么原因造成的，但尝试输入Ctrl+Alt+T以打开终端。然后输入Alt+F2以打开运行命令，然后输入unity --reset-icons并按回车键。
答案2
我看到了同样的事情。我正在运行 11.10。为了解决这个问题，我做了以下事情：
sudo apt-get 更新
从控制台。