[resolved] [duplicate] I'm a Ubuntu 15.04 vivid 64 bits user I've got so many problem since 15.04 with my wifi, so boring :( Connection is unstable, dropping packet, losing connection after auto suspend, etc... On boot, WiFi seams correct, but after some times (irregular) it gone away. Often, status bar tells me "Wifi is not ready" or "wifi is deactivated" (no physical button...)
Please some help will be great Some information below:
lspci -k -nn | grep -A 3 -i net
01:00.0 Network controller [0280]: Intel Corporation Wireless 7260
[8086:08b1] (rev bb) Subsystem: Intel Corporation Dual Band
Wireless-AC 7260 [8086:c070] Kernel driver in use: iwlwifi
sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
My dmesg is full of
[ 9330.808954] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[ 9330.948660] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[ 9336.755375] iwlwifi 0000:01:00.0: Failed to load firmware chunk!
[ 9336.755388] iwlwifi 0000:01:00.0: Could not load the [0] uCode section
[ 9336.755392] iwlwifi 0000:01:00.0: Failed to start RT ucode: -110
[ 9338.558578] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
[ 9340.378335] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
[ 9342.231506] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
[ 9344.049952] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
[ 9330.808954] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[ 9330.948660] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[ 9336.755375] iwlwifi 0000:01:00.0: Failed to load firmware chunk!
[ 9336.755388] iwlwifi 0000:01:00.0: Could not load the [0] uCode section
[ 9336.755392] iwlwifi 0000:01:00.0: Failed to start RT ucode: -110
[ 9338.558578] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
[ 9340.378335] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
[ 9342.231506] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
[ 9344.049952] iwlwifi 0000:01:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
I have blacklisted ideapad_laptop in /etc/modprobe.d/blacklist.conf
I don't have a /etc/modprobe.d/iwlmvm.conf as I want to use Wifi 11N...
I'm using /lib/firmware/iwlwifi-7260-13.ucode (cheating the OS renaming it .10)
I just try power_save=0 in a new file /etc/modprobe.d/iwlwifi-opt.conf I want to keep N and HW encryption is possible... Will stay in touch. The wireless module is a new one I brought and install in my enovo yago 2 pro (to avoid problem...but no chance...)
– greee Sep 26 '15 at 19:5514firmware. And it is wrong to rename it to10. It will not be used this way, if12is present. Rename it to12. This halped one user. Maybe you will not need to remove powersave. If that works, please write it as an answer and accept it. I will bookmark it and direct other similar questions to this answer. – Pilot6 Sep 27 '15 at 10:09