Network disabled - device not ready 16.04
I don't know why it worked, here's what I did:
Backed up /lib/firmware/ath10k/QCA6174
Replaced it with https://github.com/kvalo/ath10k-firmware/tree/master/QCA6174
Rebooted
At this point wifi was completely gone from the network manager menu.
so I restored the original QCA6174 folder, rebooted, and it works now!
Marking as solved.
If anyone knows why this worked I'm very curious ...
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Adam Goldman
Updated on September 18, 2022Comments
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Adam Goldman over 1 year
Laptop: Acer V 13
no preinstalled OS. Freshly installed ubuntu 16.04.At the top right corner, when I click the network manager, no wifi networks are found, and there's a grayed out
device not ready
text instead.Ethernet cable is working (this is how I'm posting this ...)
I'm in a co working space with many networks and users so I know the problem is on my end.
Below you will find everything I've tried followed by every piece of information I thought might b relevant.
I also logged the result of this script which has some additional info, and tailed syslog for a while.
Thanks in advance, you rock! :)
Things I've tried:
sudo service network-manager start
(No output)
sudo service network-manager stop && sudo service network-manager start
No output, network icon disappears and reappears from tray
$ sudo ifup lo ifup: interface lo already configured`
$ sudo ifup enp2s0 Unknown interface enp2s0
Using wicd network manager. I didn't detect any wireless network with that either. (I'm actually glad it didn't work, seems like a bad idea anyway)
sudo service networking restart
sudo service NetworkManager restart
sudo echo "blacklist ath10k_pci" >> /etc/modprobe.d/blacklist.conf
After rebooting, any reference to wifi was gone from the network manager menu in the tray
$ sudo apt-get install bcmwl-kernel-source Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: gksu libgksu2-0 libglade2-0 python-cairo python-dbus python-gi python-glade2 python-gobject python-gobject-2 python-gtk2 python-notify python-wicd wicd-daemon Use 'sudo apt autoremove' to remove them. The following additional packages will be installed: dkms The following NEW packages will be installed: bcmwl-kernel-source dkms 0 upgraded, 2 newly installed, 0 to remove and 315 not upgraded. Need to get 1581 kB of archives. After this operation, 8278 kB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 dkms all 2.2.0.3-2ubuntu11.1 [66,2 kB] Get:2 http://pl.archive.ubuntu.com/ubuntu xenial/restricted amd64 bcmwl-kernel-source amd64 6.30.223.248+bdcom-0ubuntu8 [1515 kB] Fetched 1581 kB in 0s (4809 kB/s) Selecting previously unselected package dkms. (Reading database ... 206160 files and directories currently installed.) Preparing to unpack .../dkms_2.2.0.3-2ubuntu11.1_all.deb ... Unpacking dkms (2.2.0.3-2ubuntu11.1) ... Selecting previously unselected package bcmwl-kernel-source. Preparing to unpack .../bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu8_amd64.deb ... Unpacking bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu8) ... Processing triggers for man-db (2.7.5-1) ... Setting up dkms (2.2.0.3-2ubuntu11.1) ... Setting up bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu8) ... Loading new bcmwl-6.30.223.248+bdcom DKMS files... First Installation: checking all kernels... Building only for 4.4.0-34-generic Building for architecture x86_64 Building initial module for 4.4.0-34-generic Done. wl: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/4.4.0-34-generic/updates/dkms/ depmod.... DKMS: install completed. modprobe: ERROR: could not insert 'wl': Required key not available update-initramfs: deferring update (trigger activated) Processing triggers for shim-signed (1.18~16.04.1+0.8-0ubuntu2) ... Processing triggers for initramfs-tools (0.122ubuntu8) ... update-initramfs: Generating /boot/initrd.img-4.4.0-34-generic W: Possible missing firmware /lib/firmware/i915/skl_guc_ver6.bin for module i915_bpo
Signed and loaded module wl:
$ openssl req -new -x509 -newkey rsa:2048 -keyout MOK.priv -outform DER -out MOK.der -nodes -days 36500 -subj "/CN=awesome key/" $ sudo /usr/src/linux-headers-$(uname -r)/scripts/sign-file sha256 ./MOK.priv ./MOK.der $(modinfo -n wl) $ sudo mokutil --import MOK.der $ reboot $ sudo modprobe wl # no error output this time :)
Reinstalling some packages:
$ sudo apt-get purge bcmwl-kernel-source $ sudo apt-get install build-essential dkms linux-headers-generic $ sudo apt-get update $ sudo apt-get install bcmwl-kernel-source $ modprobe -r b43 bcma $ modprobe -r brcmsmac bcma $ modprobe -r wl $ modprobe wl $ reboot
Relevant Info:
$ rfkill list 0: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no 1: hci0: Bluetooth Soft blocked: yes Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no
$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback
$ iwconfig wlp3s0 IEEE 802.11abgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:on enp2s0 no wireless extensions. lo no wireless extensions.
$ sudo lshw -c network *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0 version: 15 serial: 30:65:ec:9a:29:e2 size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix 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=rtl8168h-2_0.0.2 02/26/15 ip=192.168.0.103 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s resources: irq:124 ioport:3000(size=256) memory:a1204000-a1204fff memory:a1200000-a1203fff *-network DISABLED description: Wireless interface product: QCA6174 802.11ac Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:03:00.0 logical name: wlp3s0 version: 32 serial: c8:ff:28:00:90:51 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath10k_pci driverversion=4.4.0-34-generic firmware=WLAN.RM.2.0-00180-QCARMSWPZ-1 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn resources: irq:127 memory:a1000000-a11fffff
lspci -knn | grep Net -A2 03:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 32) Subsystem: Lite-On Communications Inc QCA6174 802.11ac Wireless Network Adapter [11ad:0807] Kernel driver in use: ath10k_pci Kernel modules: ath10k_pci, wl
in the next file, I've tried to set
managed=true
and reboot, tho somewhere it got reverted back tomanaged=false
$ cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile,ofono dns=dnsmasq [ifupdown] managed=false
$ dmesg | grep "\(disabled\|switch\)" [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] 6 disabled [ 0.000000] 7 disabled [ 0.000000] 8 disabled [ 0.000000] 9 disabled [ 0.000000] ACPI: Early table checksum verification disabled [ 0.069778] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit. [ 0.237651] pci 0000:00:14.0: System wakeup disabled by ACPI [ 0.244497] pci 0000:00:1c.0: System wakeup disabled by ACPI [ 0.245318] pci 0000:00:1c.4: System wakeup disabled by ACPI [ 0.246125] pci 0000:00:1c.5: System wakeup disabled by ACPI [ 0.248614] pci 0000:00:1f.3: System wakeup disabled by ACPI [ 0.249896] pci 0000:02:00.0: System wakeup disabled by ACPI [ 0.256218] pci 0000:03:00.0: System wakeup disabled by ACPI [ 0.937596] audit: initializing netlink subsys (disabled) [ 0.942695] Console: switching to colour frame buffer device 240x67 [ 0.970222] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp [ 1.103625] fb: switching to inteldrmfb from EFI VGA [ 1.103641] Console: switching to colour dummy device 80x25 [ 1.254041] Console: switching to colour frame buffer device 240x67 [ 1117.284285] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI [ 1117.292227] rtc_cmos 00:03: System wakeup disabled by ACPI [ 1117.292230] r8169 0000:02:00.0: System wakeup disabled by ACPI
$ ifconfig enp2s0 Link encap:Ethernet HWaddr 30:65:ec:9a:29:e2 inet addr:192.168.0.103 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:26514 errors:0 dropped:0 overruns:0 frame:0 TX packets:18223 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:32858129 (32.8 MB) TX bytes:2703210 (2.7 MB) 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:2379 errors:0 dropped:0 overruns:0 frame:0 TX packets:2379 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:217304 (217.3 KB) TX bytes:217304 (217.3 KB)
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peter.babic over 6 yearsI have no idea why it works, but I can confirm this works on Lenovo Y900-Y17ISK.