ubuntu13.04 Wi-Fi已禁用

[wlwlxgg]

wlwlxgg@wlwlxgg-X450JF:~$ rfkill
Usage: rfkill [options] command
Options:
--version show version (0.4-2ubuntu1 (Ubuntu))
Commands:
help
event
list [IDENTIFIER]
block IDENTIFIER
unblock IDENTIFIER
where IDENTIFIER is the index no. of an rfkill switch or one of:
<idx> all wifi wlan bluetooth uwb ultrawideband wimax wwan gps fm
wlwlxgg@wlwlxgg-X450JF:~$ rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
wlwlxgg@wlwlxgg-X450JF:~$ sudo rfkill unblock 1
[sudo] password for wlwlxgg:
wlwlxgg@wlwlxgg-X450JF:~$ rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
wlwlxgg@wlwlxgg-X450JF:~$

输入命令sudo rfkill unblock 1后，依旧无法解锁，sudo rfkill unblock all也试过不可已，如何可以打开？电脑现在不能上无线，但有线可以。net manager显示Wi-Fi已禁用

[wlwlxgg]

求大神帮忙啊啊谢谢拉