I had a dual boot system, W8 and Ubuntu 14.04.1 on my computer. WiFi worked just fine (bluetooth not).
Computer broke, and I had it a couple of months without use. After I fixed it (changed motherboard), everything worked fine, but then system updated and WiFi stoped working.
Recently I did a fresh install of OS (W8 and Ubuntu 14.04.3), but WiFi didn't work, in Ubuntu, not even on the liveCD (usb flashdrive). Tried liveCD with Ubuntu 14.04.1 but wireless didn't work either.
I suspect it is a kernel update issue.
"rfkill list all" shows wlan0 is hardblocked. If I press Fn+F12 (wifi on/off button), then rfkill switches from soft-blocked to yes or no, but remains hardblocked.
There is no wireless configuration on the BIOS.
WiFi works on W8.
Already tried the solutions posted here and nothing worked:
Ralink rt3290 wifi driver is not working in Ubuntu 14.04 (similar as the previous one, but tried anyway in case driver source was different)
Here's some info from
01:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at c2510000 (32-bit, non-prefetchable) [size=64K] Capabilities: <access denied> Kernel driver in use: rt2800pci 01:00.1 Bluetooth: Ralink corp. RT3290 Bluetooth Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at c2500000 (32-bit, non-prefetchable) [size=64K] Capabilities: <access denied>
eth0 no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off lo no wireless extensions.
lsmod | grep wmi:
snd_rawmidi 32768 1 snd_seq_midi snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi snd 86016 17 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device hp_wmi 16384 0 sparse_keymap 16384 1 hp_wmi wmi 20480 1 hp_wmi
Can anybody help me?