我剛剛在預先安裝了 Windows 8 的 Toshiba S55-a5358 筆記型電腦上進行了 Ubuntu 12.04 LTS 雙重啟動。
我在雙啟動時遇到問題，因此不得不使用啟動修復。無線工作也遇到問題，chili555 的回答有效：
Ubuntu 12.04 Realtek RTL8188E 無線卡未偵測到
然而 Ubuntu 12.04 LTS 上的無線網路非常不穩定、緩慢且斷線。
$ dmesg | grep rtl
[ 7.282473] rtl8188ee 0000:02:00.0: enabling device (0000 -> 0003)
[ 7.289730] rtl8188ee: Using firmware rtlwifi/rtl8188efw.bin
[ 7.953254] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 7.953400] rtlwifi: wireless switch is on
[ 594.241828] rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
[ 928.494384] rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
[ 1163.316277] rtlwifi:addbareq_rx():<10000-1> sta is NULL
[ 1360.990311] rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
Windows 8 上的無線網路運作速度超快且不會斷線。我需要協助讓無線在 Ubuntu 12.04 上一致且快速地工作。
先感謝您。
根據 chili555 的評論：
azhar@azhar-Satellite-S55-A:~$ cat /var/log/syslog | grep -e wlan -e reason | tail -n25
Feb 4 11:56:51 azhar-Satellite-S55-A kernel: [ 2629.951397] wlan0: RX AssocResp from c8:cb:b8:f0:76:70 (capab=0x431 status=0 aid=8)
Feb 4 11:56:51 azhar-Satellite-S55-A kernel: [ 2629.951794] wlan0: associated
Feb 4 11:56:51 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: associating -> associated
Feb 4 11:56:51 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake
Feb 4 11:56:51 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed
Feb 4 11:56:51 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): roamed from BSSID C8:CB:B8:F0:76:F0 (HUB) to C8:CB:B8:F0:76:70 (HUB)
Feb 4 11:58:07 azhar-Satellite-S55-A NetworkManager[1368]: <info> (eth0): device state change: activated -> unavailable (reason 'carrier-changed') [100 20 40]
Feb 4 11:58:07 azhar-Satellite-S55-A NetworkManager[1368]: <info> (eth0): deactivating device (reason 'carrier-changed') [40]
Feb 4 11:58:08 azhar-Satellite-S55-A NetworkManager[1368]: <info> Policy set 'HUB' (wlan0) as default for IPv4 routing and DNS.
Feb 4 11:58:08 azhar-Satellite-S55-A NetworkManager[1368]: <info> Policy set 'HUB' (wlan0) as default for IPv4 routing and DNS.
Feb 4 11:59:42 azhar-Satellite-S55-A kernel: [ 2800.378747] wlan0: Connection to AP c8:cb:b8:f0:76:70 lost
Feb 4 11:59:42 azhar-Satellite-S55-A wpa_supplicant[1409]: CTRL-EVENT-DISCONNECTED bssid=c8:cb:b8:f0:76:70 reason=4
Feb 4 11:59:42 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: completed -> disconnected
Feb 4 11:59:42 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: disconnected -> scanning
Feb 4 11:59:43 azhar-Satellite-S55-A kernel: [ 2801.758438] wlan0: authenticate with c8:cb:b8:f0:a7:10
Feb 4 11:59:43 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Feb 4 11:59:43 azhar-Satellite-S55-A kernel: [ 2801.777780] wlan0: send auth to c8:cb:b8:f0:a7:10 (try 1/3)
Feb 4 11:59:43 azhar-Satellite-S55-A kernel: [ 2801.781551] wlan0: authenticated
Feb 4 11:59:43 azhar-Satellite-S55-A kernel: [ 2801.785467] wlan0: associate with c8:cb:b8:f0:a7:10 (try 1/3)
Feb 4 11:59:43 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: authenticating -> associating
Feb 4 11:59:43 azhar-Satellite-S55-A kernel: [ 2801.790905] wlan0: RX AssocResp from c8:cb:b8:f0:a7:10 (capab=0x431 status=0 aid=5)
Feb 4 11:59:43 azhar-Satellite-S55-A kernel: [ 2801.791305] wlan0: associated
Feb 4 11:59:43 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: associating -> 4-way handshake
Feb 4 11:59:45 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed
Feb 4 11:59:45 azhar-Satellite-S55-A NetworkManager[1368]: <info> (wlan0): roamed from BSSID C8:CB:B8:F0:76:70 (HUB) to C8:CB:B8:F0:A7:10 (HUB)
另一條評論是，無線連接小程式“Bars”不斷上下。僅供參考，在 Windows 8 或我的其他也運行 12.04 LTS 的 Ubuntu 筆記型電腦 (ASUS) 上不會發生這種情況。
還得到以下結果：
答案1
如果您擁有路由器的管理權限，我建議您將加密從混合模式 WPA 和 WPA2 變更為僅單模式 WPA2-AES。我還嘗試禁用 802.11N；僅使用 B 和 G。我也會關閉「自動頻道」並選擇固定頻道，例如 1 或 11。
您也可以嘗試驅動程式參數：
sudo modprobe -r rtl8188ee
sudo modprobe rtl8188ee swenc=1
如果這有幫助，我們可以編寫一個 .conf 檔案並將其永久化。
在您的系統日誌中，我們看到裝置從存取點的一個頻段漫遊到另一個頻段：
(wlan0)：從 BSSID C8:CB:B8:F0:76:F0 (HUB) 漫遊到 C8:CB:B8:F0:76:70 (HUB)
我們可以嘗試另一個參數。這個臨時載入非常困難，所以我們將編寫conf文件，重新啟動並嘗試。如果沒有幫助，我們只需刪除我們的conf檔：
sudo -i
echo "options cfg80211 cfg80211_disable_40mhz_24ghz=Y" > /etc/modprobe.d/cfg80211.conf
exit
重新啟動並告訴我們是否有任何改進。
由於它不起作用，讓我們嘗試另一個參數：
sudo -i
rm /etc/modprobe.d/cfg80211.conf
echo "options mac80211 probe_wait_ms=3000" > /etc/modprobe.d/mac80211.conf
exit
重啟。
答案2
想要發表評論，對我來說，Realtek RTL8188EE 的驅動程式下載自：
http://152.104.125.41/downloads/downloadsView.aspx?Langid=1&PNid=48&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true#2722
為我提供了穩定的連接。
最初問題中連結的反向移植驅動程式沒有提供穩定的連接。