X1 Carbon 2014, Ubuntu 14.04, Intel 7260 wireless module, was definitely
severely affected by this bug.
Have been "relatively" stable with:
1. In the /usr/lib/pm-utils/power.d directory in the file wireless I changed in
the end of the file with two off so that there is no wireless powersave:
case $1 in
true) wireless_powersave off ;;
false) wireless_powersave off ;;
*) exit $NA ;;
esac
2. I also blacklisted wireless power management creating blacklist file :
sudo nano /etc/pm/config.d/blacklist
HOOK_BLACKLIST="wireless"
3. Kernel from Seth Forshee,
http://people.canonical.com/~sforshee/iwl-ltr/trusty/ - In other words,
3.13.0-37_3.13.0-37.64+iwlltr0001
4. loaded firmware version 22.24.8.0 op_mode iwlmvm
5. linux-firmware 1.127.7
By this I mean, definitely able to stress the network and only 1-3
incidents of failure within 3 days, which is at least a couple orders of
magnitude better than stock 14.04, and I can't say for certain yet if it
isn't just working now. I have a subjective sense that the wifi is still
not completely solid, but no hard evidence. I have not yet observed a
difference between 2.4Ghz and 5Ghz (or N/AC or different channels, etc).
If there's anything else it'd be useful to report - or test - please
don't hesitate to ask.
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https://bugs.launchpad.net/bugs/1354975
Title:
iwlwifi Intel 7260 Wifi disconnects
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