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On Thu, Nov 6, 2014 at 3:52 PM, Henry Wünsche <[email protected]> wrote:
> Hello!
> I got a problem with an Lenovo U330p botebook and it's build in Intel
> Wireless-N 7260 in combination with Ubuntu 14.10 .
> If the WiFi card is running in N-mode after a few minutes I am no more able
> to ping my router or visit any website. If the N-mode is disabled via the
> command "options iwlwifi 11n_disable=1" in "/etc/modprobe.d/iwlwifi.conf"
> it works for me.
Can you please enable 11n and record tracing while you can't ping your router?
sudo trace-cmd record -e iwlwifi -e mac80211 -e cfg80211 -e iwlwifi_msg
This will create a trace.dat file which you can send.
Take into account this kind of system issues are very hard to debug
remotely, so.... I am not sure I'll be able to do a lot for you.
And I'll be travelling to San Francisco the next two weeks, so I will
have very little time for that.
>
> I also noticed that the wifi range with that wireless card on Ubuntu is
> terrible. I dual boot with Windows 8.1 and there wifi range is much better
> and even N-mode works.
>
> after booting Ubuntu (mainline kernel 3.17.1) dmesg shows this:
>
> [ 4.133139] iwlwifi 0000:02:00.0: irq 49 for MSI/MSI-X
> [ 4.133484] iwlwifi 0000:02:00.0: Direct firmware load for
> iwlwifi-7260-10.ucode failed with error -2
> [ 4.133487] iwlwifi 0000:02:00.0: Falling back to user helper
> [ 4.253735] iwlwifi 0000:02:00.0: loaded firmware version 25.222.9.0
> op_mode iwlmvm
> [ 5.816514] iwlwifi 0000:02:00.0: Detected Intel(R) Wireless N 7260,
> REV=0x144
> [ 5.816562] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
> [ 5.816777] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
> [ 6.086593] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
> [ 6.086802] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
> [ 7.167833] iwlwifi 0000:02:00.0: Time Event end notification failure
>
> the mentioned firmware iwlwifi-7260-10.ucode isn't installed, but
> iwlwifi-7260-7.ucode
> iwlwifi-7260-8.ucode
> iwlwifi-7260-9.ucode
>
> are.
>
> Is there any solution for this problem or any fix?
> I read that iwlwifi-7260-10.ucode isn't atable yet, so I haven't installed
> it at the moment.
>
> Thanks in advance and best regards,
>
> Henry Wünsche