Dear Maintainer,

Installed Debian Jessie on a shiny new Thinkpad X1 Carbon gen3 (2015) but wireless has been unusable so far.

lspci output:

04:00.0 Network controller: Intel Corporation Wireless 7265 (rev 43)
        Subsystem: Intel Corporation Wireless-N 7265
        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 70
        Region 0: Memory at f1100000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
        Kernel driver in use: iwlwifi

dmesg output (this messages keeps appearing every few seconds):

[  776.566863] wlan0: deauthenticating from 28:c6:8e:0f:48:2e by local choice (Reason: 3=DEAUTH_LEAVING)
[  776.699636] cfg80211: Calling CRDA to update world regulatory domain
[  776.701898] cfg80211: World regulatory domain updated:
[  776.701901] cfg80211:  DFS Master region: unset
[  776.701902] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  776.701904] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  776.701905] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  776.701906] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[  776.701907] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[  776.701908] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  776.701909] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[  776.701910] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[  776.701911] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[  776.701922] cfg80211: Calling CRDA for country: JP
[  776.703664] cfg80211: Regulatory domain changed to country: JP
[  776.703667] cfg80211:  DFS Master region: JP
[  776.703668] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  776.703669] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  776.703670] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[  776.703671] cfg80211:   (4910000 KHz - 4990000 KHz @ 40000 KHz), (N/A, 2300 mBm), (N/A)
[  776.703673] cfg80211:   (5030000 KHz - 5090000 KHz @ 40000 KHz), (N/A, 2300 mBm), (N/A)
[  776.703674] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[  776.703675] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  776.703677] cfg80211:   (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2300 mBm), (0 s)
[  778.402543] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[  778.402974] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[  778.418876] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  778.426495] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[  778.427084] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[  778.441822] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

Things I have tried:

- Add 11n_disable=1 option to iwlwifi.
- Force CRDA region on cfg80211_getdom option to JP an US
- Set region to JP/US on /etc/default/crda
- Change thousands configurations on my routers.

I have tested three wireless routers and the wifi on my machine presents the same problem. It gets disconnected every few seconds making it practically unusable.

I can confirm the bug on 3rd gen X1, connection drops with a deauth
message.

wlan0: deauthenticating from .... by local choice (Reason: 3=DEAUTH_LEAVING)

Let me know if you need more info.

/Daniel

HELLO,



FIRSTLY I APOLOGIZE BECAUSE YOU DO NOT KNOW ME PERSONALLY, BUT I GOT YOUR EMAIL FROM A WEB JOURNAL AND I WAS WONDERING IF WE COULD WORK TOGETHER BECAUSE I HAVE A TRANSACTION FOR YOU ?