I'm a happy new owner of a Lenovo Yoga 2 13 ultrabook. I am connecting to an Asus RT-AC66R and I am running Arch(x86_64) linux on it, currently dual booted with win 8.1, though I intend to remove win soon. It is obvious that AC is working in windows as it should as files coming from my NAS move much faster.. However everything in linux points to it not utilizing AC. Is there really not AC support in linux for these adapters or am I missing something? I find it quite absurd for it not to work at this point. Being that I am on Arch I am pretty up to date and I have even tried the experimental firmware (iwlwifi-7260-9.ucode) committed on 2014-07-27 to the Core6 branch below. So what gives?
~uname -a
Linux Yoga-Arch 3.16.1-1-ARCH #1 SMP PREEMPT Thu Aug 14 07:40:19 CEST 2014 x86_64 GNU/Linux
~iwconfig
| wlp1s0 | IEEE 802.11abgn ESSID:"*******" <---- not showing ac |
| Mode:Managed Frequency:5.745 GHz Access Point: 10:C3:7B:CE:DC:24 | |
| Bit Rate=6 Mb/s Tx-Power=16 dBm | |
| Retry short limit:7 RTS thr:off Fragment thr:off | |
| Power Management:on | |
| Link Quality=44/70 Signal level=-66 dBm | |
| Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 | |
| Tx excessive retries:0 Invalid misc:0 Missed beacon:0 |
| lo | no wireless extensions. |
~dmesg | grep iwl
| [ | 1.696000] iwlwifi 0000:01:00.0: irq 62 for MSI/MSI-X |
| [ | 1.701583] iwlwifi 0000:01:00.0: loaded firmware version 25.223.9.0 op_mode iwlmvm |
| [ | 1.724207] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144 |
| [ | 1.724266] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S |
| [ | 1.724485] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S |
| [ | 1.917754] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' |
| [ | 2.527127] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S |
| [ | 2.527444] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S |
[ 3114.240018] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
[ 3114.240220] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
[ 3116.346321] iwlwifi 0000:01:00.0: no hotplug settings from platform
~lspci -vv
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 62
Region 0: Memory at b0400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0100c Data: 4122
Capabilities: [40] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range B, TimeoutDis+, LTR+, OBFF Via WAKE#
DevCtl2: Completion Timeout: 16ms to 55ms, TimeoutDis-, LTR+, OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Device Serial Number **-**-**-**-**-**-**-**
Capabilities: [14c v1] Latency Tolerance Reporting
Max snoop latency: 3145728ns
Max no snoop latency: 3145728ns
Capabilities: [154 v1] Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi