我刚买了一台新的 Acer Aspire V7-582PG，它配备了英特尔公司双频无线-N 7260（修订版 73）Wifi 卡。
在 Windows 上，一切都运行正常，但使用 Linux 时，互联网速度相当慢（Linux：100kb/s - 500kB/s vs Windows：1-2MB/s）。我现在尝试了 Fedora 20 和 Ubuntu 14.04-beta，两者都有同样的问题（两者都运行内核 3.13.0）。我还尝试了两个不同的 WiFi 网络，两者都有同样的问题。
如果我在linux上使用以太网，它也能达到1-2MB/s，所以它不是应用层。
lspci 告诉我正在使用的内核驱动程序是 iwlwifi，据我所知这应该是正确的驱动程序：
04:00.0 Network controller: Intel Corporation Wirelesss 7260 (rev 73)
Subsystem: Intel Corporation Dual Band Wireless-N 7260
Flags: bus master, fast devsel, latency 0, IRQ 67
Memory at b3500000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [40] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number [...]
Capabilities: [14c] Latency Tolerance Reporting
Capabilities: [154] Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>
Kernel driver in use: iwlwifi
我在 dmesg 或 syslog 中没有看到任何错误，但是这里有一些日志（在启用 wifi、连接到接入点、下载大文件时获取）
dmesg：
[ 1668.921529] wlan0: authenticate with [mac]
[ 1668.923754] wlan0: send auth to [mac] (try 1/3)
[ 1668.925720] wlan0: authenticated
[ 1668.928533] wlan0: associate with [mac] (try 1/3)
[ 1668.931371] wlan0: RX AssocResp from [mac] (capab=0x411 status=0 aid=1)
[ 1668.931901] wlan0: associated
[ 1668.931922] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1767.843948] systemd-hostnamed[4116]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
系统日志：
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> enable requested (sleeping: no enabled: no)
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> waking up and re-enabling...
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (wlan0): bringing up device.
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (wlan0): deactivating device (reason 'managed') [2]
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> NetworkManager state is now CONNECTED_GLOBAL
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (eth0): bringing up device.
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (eth0): preparing device.
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> (eth0): deactivating device (reason 'managed') [2]
Apr 15 15:06:26 ubuntu NetworkManager[1729]: <info> NetworkManager state is now DISCONNECTED
Apr 15 15:06:26 ubuntu kernel: [ 1638.766440] r8169 0000:05:00.1 eth0: link down
Apr 15 15:06:26 ubuntu kernel: [ 1638.766502] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0): bringing up device.
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> WiFi hardware radio set enabled
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> WiFi now enabled by radio killswitch
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0): bringing up device.
Apr 15 15:06:29 ubuntu kernel: [ 1642.036186] iwlwifi 0000:04:00.0: RF_KILL bit toggled to enable radio.
Apr 15 15:06:29 ubuntu kernel: [ 1642.037447] iwlwifi 0000:04:00.0: L1 Disabled; Enabling L0S
Apr 15 15:06:29 ubuntu kernel: [ 1642.037669] iwlwifi 0000:04:00.0: L1 Disabled; Enabling L0S
Apr 15 15:06:29 ubuntu kernel: [ 1642.049872] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0) supports 5 scan SSIDs
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0): supplicant interface state: starting -> ready
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <warn> Trying to remove a non-existant call id.
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0): supplicant interface state: ready -> disconnected
Apr 15 15:06:29 ubuntu NetworkManager[1729]: <info> (wlan0) supports 5 scan SSIDs
Apr 15 15:06:29 ubuntu wpa_supplicant[2060]: wlan0: Reject scan trigger since one is already pending
Apr 15 15:06:29 ubuntu wpa_supplicant[2060]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 15 15:06:33 ubuntu NetworkManager[1729]: <info> (wlan0): supplicant interface state: disconnected -> inactive
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Auto-activating connection 'Ikarus'.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) starting connection 'Ikarus'
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> NetworkManager state is now CONNECTING
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): preparing device.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0/wireless): access point 'Ikarus' has security, but secrets are required.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0/wireless): connection 'Ikarus' has security, and secrets exist. No new secrets needed.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Config: added 'ssid' value 'Ikarus'
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Config: added 'scan_ssid' value '1'
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Config: added 'auth_alg' value 'OPEN'
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Config: added 'psk' value '<omitted>'
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Config: set interface ap_scan to 1
Apr 15 15:06:53 ubuntu wpa_supplicant[2060]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 15 15:06:56 ubuntu wpa_supplicant[2060]: wlan0: SME: Trying to authenticate with [mac] (SSID='Ikarus' freq=2412 MHz)
Apr 15 15:06:56 ubuntu kernel: [ 1668.921529] wlan0: authenticate with [mac]
Apr 15 15:06:56 ubuntu kernel: [ 1668.923754] wlan0: send auth to [mac] (try 1/3)
Apr 15 15:06:56 ubuntu wpa_supplicant[2060]: wlan0: Trying to associate with [mac] (SSID='Ikarus' freq=2412 MHz)
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): supplicant interface state: inactive -> associating
Apr 15 15:06:56 ubuntu kernel: [ 1668.925720] wlan0: authenticated
Apr 15 15:06:56 ubuntu kernel: [ 1668.928533] wlan0: associate with [mac] (try 1/3)
Apr 15 15:06:56 ubuntu wpa_supplicant[2060]: wlan0: Associated with [mac]
Apr 15 15:06:56 ubuntu kernel: [ 1668.931371] wlan0: RX AssocResp from [mac] (capab=0x411 status=0 aid=1)
Apr 15 15:06:56 ubuntu kernel: [ 1668.931901] wlan0: associated
Apr 15 15:06:56 ubuntu kernel: [ 1668.931922] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Apr 15 15:06:56 ubuntu wpa_supplicant[2060]: wlan0: WPA: Key negotiation completed with [mac] [PTK=CCMP GTK=CCMP]
Apr 15 15:06:56 ubuntu wpa_supplicant[2060]: wlan0: CTRL-EVENT-CONNECTED - Connection to [mac] completed [id=0 id_str=]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): supplicant interface state: associating -> completed
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful. Connected to wireless network 'Ikarus'.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: config -> ip-config (reason 'none') [50 70 0]
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> dhclient started with pid 3971
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Beginning IP6 addrconf.
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
Apr 15 15:06:56 ubuntu dhclient: Internet Systems Consortium DHCP Client 4.2.4
Apr 15 15:06:56 ubuntu dhclient: Copyright 2004-2012 Internet Systems Consortium.
Apr 15 15:06:56 ubuntu dhclient: All rights reserved.
Apr 15 15:06:56 ubuntu dhclient: For info, please visit https://www.isc.org/software/dhcp/
Apr 15 15:06:56 ubuntu dhclient:
Apr 15 15:06:56 ubuntu NetworkManager[1729]: <info> (wlan0): DHCPv4 state changed nbi -> preinit
Apr 15 15:06:56 ubuntu dhclient: Listening on LPF/wlan0/[mac]
Apr 15 15:06:56 ubuntu dhclient: Sending on LPF/wlan0/[mac]
Apr 15 15:06:56 ubuntu dhclient: Sending on Socket/fallback
Apr 15 15:06:56 ubuntu dhclient: DHCPREQUEST of 192.168.20.139 on wlan0 to 255.255.255.255 port 67 (xid=0x77e564c9)
Apr 15 15:06:57 ubuntu dhclient: DHCPACK of 192.168.20.139 from 192.168.20.1
Apr 15 15:06:57 ubuntu dhclient: bound to 192.168.20.139 -- renewal in 1394 seconds.
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> (wlan0): DHCPv4 state changed preinit -> reboot
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> address 192.168.20.139
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> prefix 24 (255.255.255.0)
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> gateway 192.168.20.1
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> hostname 'ubuntu'
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> nameserver '192.168.30.1'
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> nameserver '192.168.20.1'
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> domain name 'localwlan'
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Configure Commit) scheduled...
Apr 15 15:06:57 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Commit) started...
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: ip-config -> secondaries (reason 'none') [70 90 0]
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Commit) complete.
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> (wlan0): device state change: secondaries -> activated (reason 'none') [90 100 0]
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> NetworkManager state is now CONNECTED_GLOBAL
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> Policy set 'Ikarus' (wlan0) as default for IPv4 routing and DNS.
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> Writing DNS information to /sbin/resolvconf
Apr 15 15:06:58 ubuntu dnsmasq[3233]: setting upstream servers from DBus
Apr 15 15:06:58 ubuntu dnsmasq[3233]: using nameserver 192.168.20.1#53
Apr 15 15:06:58 ubuntu dnsmasq[3233]: using nameserver 192.168.30.1#53
Apr 15 15:06:58 ubuntu NetworkManager[1729]: <info> Activation (wlan0) successful, device activated.
Apr 15 15:06:58 ubuntu dbus[1169]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Apr 15 15:06:58 ubuntu dbus[1169]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Apr 15 15:07:05 ubuntu ntpdate[4049]: adjust time server 91.189.89.199 offset 0.000059 sec
Apr 15 15:07:17 ubuntu NetworkManager[1729]: <info> (wlan0): IP6 addrconf timed out or failed.
Apr 15 15:07:17 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Apr 15 15:07:17 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Apr 15 15:07:17 ubuntu NetworkManager[1729]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Apr 15 15:07:26 ubuntu wpa_supplicant[2060]: wlan0: CTRL-EVENT-SCAN-STARTED
ifconfig：
wlan0 Link encap:Ethernet HWaddr [mac]
inet addr:192.168.20.139 Bcast:192.168.20.255 Mask:255.255.255.0
inet6 addr: fe80::e8b:fdff:fe78:a807/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:267157 errors:0 dropped:0 overruns:0 frame:0
TX packets:139061 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:400828359 (400.8 MB) TX bytes:12138586 (12.1 MB)
配置：
wlan0 IEEE 802.11abgn ESSID:"Ikarus"
Mode:Managed Frequency:2.412 GHz Access Point: [mac]
Bit Rate=54 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=53/70 Signal level=-57 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:952 Missed beacon:0
这是已知的驱动程序错误吗？还是硬件故障，我应该将笔记本寄回？不过我想知道为什么它在 Windows 上可以正常工作。
编辑： 查看 /lib/firmware，我发现安装了两个固件版本。
$ ls -l |grep iwlwifi-7260
-rw-r--r--. 1 root root 683236 17. Mär 19:38 iwlwifi-7260-7.ucode
-rw-r--r--. 1 root root 679780 17. Mär 19:38 iwlwifi-7260-8.ucode
但是，modinfo 显示它使用的是 iwlwifi-7260-7。这有问题吗？我可以告诉它使用较新的 iwlwifi-7260-8 吗？或者最终的数字不是关于更新，而是关于不同的卡版本？
以下是 modinfo 的输出：
filename: /lib/modules/3.13.9-200.fc20.x86_64/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003-2013 Intel Corporation <[email protected]>
version: in-tree:d
description: Intel(R) Wireless WiFi driver for Linux
firmware: iwlwifi-100-5.ucode
firmware: iwlwifi-1000-5.ucode
firmware: iwlwifi-135-6.ucode
firmware: iwlwifi-105-6.ucode
firmware: iwlwifi-2030-6.ucode
firmware: iwlwifi-2000-6.ucode
firmware: iwlwifi-5150-2.ucode
firmware: iwlwifi-5000-5.ucode
firmware: iwlwifi-6000g2b-6.ucode
firmware: iwlwifi-6000g2a-5.ucode
firmware: iwlwifi-6050-5.ucode
firmware: iwlwifi-6000-4.ucode
firmware: iwlwifi-3160-7.ucode
firmware: iwlwifi-7260-7.ucode
srcversion: D6BB6B39D0A7CAE63C6FE2E
alias: pci:v00008086d0000095Asv*sd00005490bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005290bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005590bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005190bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005090bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005420bc*sc*i*
alias: pci:v00008086d0000095Asv*sd0000502Abc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005020bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009410bc*sc*i*
[...]
alias: pci:v00008086d00004232sv*sd00001201bc*sc*i*
depends: cfg80211
intree: Y
vermagic: 3.13.9-200.fc20.x86_64 SMP mod_unload
signer: Fedora kernel signing key
sig_key: C3:7D:D7:50:43:06:5A:DE:BE:24:34:7F:CD:03:35:FA:C5:D0:3D:63
sig_hashalgo: sha256
parm: debug:debug output mask (uint)
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (defualt: 0 dB) (int)
parm: wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable, 2=enable (default: 0) (int)
parm: nvm_file:NVM file name (charp)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
答案1
我发现关闭蓝牙有帮助。
它使用相同的芯片，但使用蓝牙鼠标和 WLAN 会导致 WLAN 每分钟崩溃一次。没有蓝牙时，它可以工作更长时间。
我仍然会收到一些“取消认证”和“重新输入密钥”消息，有时它会恢复，有时我必须在系统设置中关闭/打开 wifi。
奇怪的行为。
我找到了很多技巧（禁用看门狗、8011 的“n”部分等），但都对我不起作用。而且我还没有发现与蓝牙使用有任何联系……
答案2
我有一台运行 Ubuntu 14.10 的 Thinkpad X240，它在我的家里和其他 wifi 网络上一直受到 7260 连接速度慢的困扰（20MBps，而其他非 7260 笔记本电脑则为 80-90MBps）。
尝试了在线收集到的许多技巧和调整都没有效果，但运行最新的 3.19 主线内核和 7260-10 固件首次将速度提高到了标准的 80-90。