It is a Lenovo Legion Y520 dual boot system with Ubuntu 16.04 and Windows 10. The wireless connection worked fine this morning and both connections still work in Windows. Had to switch OS at some point, and I know I did an apt update && apt upgrade this morning. I've also tried and failed to connect a bluetooth device in Ubuntu (it paired but didn't show up as audio device), but that is the least of my problems now.
All wireless connections are visible, but just won't connect, and the wired connection just shows "Connecting" indefinitely. Rest of the day I got zero development done, so here's my plea for help. HEEELP :)
Here's some analysis So, connections are visible, but I can't ping anything. Also, there's no connection icon in the panel.
Output for ifconfig:
enp3s0 Link encap:Ethernet HWaddr 54:e1:ad:d2:04:e3 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2790 errors:0 dropped:4 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:198797 (198.7 KB) TX bytes:108 (108.0 B)
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:10168 errors:0 dropped:0 overruns:0 frame:0 TX packets:10168 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:548164 (548.1 KB) TX bytes:548164 (548.1 KB)
wlp2s0 Link encap:Ethernet HWaddr e8:2a:44:fe:93:35 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)Output for lshw -C network:
*-network description: Wireless interface product: QCA6174 802.11ac Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: wlp2s0 version: 32 serial: e8:2a:44:fe:93:35 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath10k_pci driverversion=4.15.0-48-generic firmware=WLAN.RM.4.4.1-00079-QCARMSWPZ-1 latency=0 link=no multicast=yes wireless=IEEE 802.11 resources: irq:139 memory:a4200000-a43fffff *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: enp3s0 version: 10 serial: 54:e1:ad:d2:04:e3 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:19 ioport:3000(size=256) memory:a4504000-a4504fff memory:a4500000-a4503fffSome lspci stuff:
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
02:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)My /etc/network/interfaces looks like this:
auto lo
iface lo inet loopbackI've tried a bunch of resets and reinstalled network-manager and r8168 driver (r8168-dkms_8.045.08-2_all.deb). Also tried to boot from older kernel, but I'm not sure what I expected there.
Any suggestions are appreciated, thanks.
edit:
Two things stand out with dmesg less:
[ 1.594537] PKCS#7 signature not signed with a trusted key
[ 1.594545] r8168: loading out-of-tree module taints kernel.
[ 1.594632] r8168: module verification failed: signature and/or required key missing - tainting kernel
[ 1.595852] r8168 Gigabit Ethernet driver 8.045.08-NAPI loadedso more r8168 stuff,
and
[ 9.946492] audit: type=1400 audit(1557504826.227:38): apparmor="DENIED" operation="open" profile="/usr/lib/NetworkManager/nm-dhcp-helper" name="/usr/local/lib/libz.so.1.2.9" pid=1717 comm="nm-dhcp-helper" requested_mask="r" denied_mask="r" fsuid=0 ouid=0as I ran into an opencv problem in the morning, solved by installing libz.so.1.2.9:
1 Answer
Basic settings;
WIRED though - there should be e.g. password and encryption settings for Wifi.
(I have no wifi on the current computer)
Check System settings > Network, it should look similar to this:
Click Options to see these, check all tabs.
