Dear all at debian-user@lists.debian.org,
In January of 2016, I purchased a Lenovo IdeaPad Y700 laptop, which had
Windows 10 pre-installed on it. Since that time I have been unable to get my
Intel Wireless 8260 hardware to work with my Debian Jessie stable
distro. After several hours searching the internet for solutions, I have seen
that this is a common problem with Lenovo computers. Here are the solutions
that I have tried:
1. I recompiled the kernel, using the stable 4.4.1 version that I
obtained from www.kernel.org via wget. Using apt, I downloaded the package
kernel-package. Using menuconfig, I selected the iwlwifi drivers in the
wireless
options. I made the image using the make-kpkg command, and compiled it using
the fakeroot make-kpkg --initrd --revision=1.0.custom kernel_image command. I
rebooted, but the drivers seemed not to have been correct, and the wifi card
continued not to work.
2. I then downloaded the most recent backports package using wget
https://www.kernel.org/pub/linux/kernel/projects/backports/2016/01/22/backports-20160122.tar.gz.
I untarred the package, issued the commands make
defconfig-wifi && make && make install. The program seemed to compile without
any errors. I then searched in the
/lib/modules/4.4.1/build/drivers/net/wireless/iwlwifi/pcie/drv.c file, where on
line 425 I read:
{IWL_PCI_DEVICE(0x24F3, 0x1010, iwl8260_2ac_cfg)},
This seemed to indicate to me that my device should be supported, based on the
lspci -nnk | grep 0280 -A2 command, which gives the following output:
08:00.0 Network controller [0280]: Intel Corporation Wireless
8260 [8086:24f3] (rev 3a)
Subsystem: Intel Corporation Device [8086:1010]
Kernel driver in use: iwlwifi
However, upon rebooting my machine, my wifi card still did not work.
3. I then attempted to manage a problem with rfkill by searching in the
file /lib/modules/4.4.1/build/drivers/platform/x86/ideapad-laptop.c, which
states:
/*
* Some ideapads don't have a hardware rfkill switch, reading
VPCCMD_R_RF
* always results in 0 on these models, causing ideapad_laptop
to wrongly
* report all radios as hardware-blocked.
*/
At line 902, I added the following:
{
.ident = "Lenovo Yoga 700",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad
Y700 Touch-15ISK"),
},
},
This was because the output of the command dmidecode | grep -A3 '^System
Information' was:
System Information
Manufacturer: LENOVO
Product Name: 80NW
Version: Lenovo ideapad Y700 Touch-15ISK
I guessed based on this that DMI_PRODUCT_VERSION should therefore be set to
"Lenovo ideapad Y700 Touch-15ISK". However, upon reboot, rfkill list still
showed the following:
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: yes
2: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
I don't know why phy0 is showing up as a logical device, because that
had not been showing up prior to my updating the kernel to 4.4.1. However, I
don't think this is part of the problem. I believe I have exhausted my
capacity to troubleshoot the problem using web searches, and I therefore am
seeking some help here. The outputs of some other commands appear below for
further information:
dmesg | grep -i iwl
[ 2.477758] iwlwifi 0000:08:00.0: Direct firmware load for
iwlwifi-8000C-20.ucode failed with error -2
[ 2.484820] iwlwifi 0000:08:00.0: loaded firmware version 16.242414.0
op_mode iwlmvm
[ 2.520860] iwlwifi 0000:08:00.0: Unsupported splx structure
[ 2.557772] iwlwifi 0000:08:00.0: Detected Intel(R) Dual Band Wireless AC
8260, REV=0x208
[ 2.558389] iwlwifi 0000:08:00.0: L1 Enabled - LTR Enabled
[ 2.559215] iwlwifi 0000:08:00.0: L1 Enabled - LTR Enabled
[ 2.567127] iwlwifi 0000:08:00.0: can't access the RSA semaphore it is write
protected
[ 2.718970] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
lspci:
00:00.0 Host bridge: Intel Corporation Device 1910 (rev 07)
00:01.0 PCI bridge: Intel Corporation Device 1901 (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06)
00:14.0 USB controller: Intel Corporation Device a12f (rev 31)
00:16.0 Communication controller: Intel Corporation Device a13a (rev 31)
00:17.0 SATA controller: Intel Corporation Device a103 (rev 31)
00:1c.0 PCI bridge: Intel Corporation Device a111 (rev f1)
00:1c.2 PCI bridge: Intel Corporation Device a112 (rev f1)
00:1c.3 PCI bridge: Intel Corporation Device a113 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Device a14e (rev 31)
00:1f.2 Memory controller: Intel Corporation Device a121 (rev 31)
00:1f.3 Audio device: Intel Corporation Device a170 (rev 31)
00:1f.4 SMBus: Intel Corporation Device a123 (rev 31)
01:00.0 3D controller: NVIDIA Corporation Device 139b (rev a2)
07:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev
01)
08:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
PCI Express Gigabit Ethernet Controller (rev 15)
ifconfig -a:
eth0 Link encap:Ethernet HWaddr 50:7b:9d:5c:a7:1f
inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::527b:9dff:fe5c:a71f/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1288 (1.2 KiB) TX bytes:1332 (1.3 KiB)
eth1 Link encap:Ethernet HWaddr 26:e3:14:75:3f:b8
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)
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:16 errors:0 dropped:0 overruns:0 frame:0
TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1296 (1.2 KiB) TX bytes:1296 (1.2 KiB)
wlan0 Link encap:Ethernet HWaddr a4:34:d9:2f:eb:21
inet6 addr: fe80::a634:d9ff:fe2f:eb21/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:395 (395.0 B) TX bytes:1101 (1.0 KiB)
part of lshw output:
*-pci:2
description: PCI bridge
product: Intel Corporation
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
version: f1
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master
cap_list
configuration: driver=pcieport
resources: irq:124 memory:94100000-941fffff
*-network DISABLED
description: Wireless interface
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:08:00.0
logical name: wlan0
version: 3a
serial: a4:34:d9:2f:eb:21
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet
physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.4.1
firmware=16.242414.0 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
resources: irq:130 memory:94100000-94101fff
*-pci:3
description: PCI bridge
product: Intel Corporation
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: f1
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master
cap_list
configuration: driver=pcieport
resources: irq:125 ioport:3000(size=4096) memory:94000000-940fffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 15
serial: 50:7b:9d:5c:a7:1f
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 ip=192.168.1.100 latency=0 link=yes
multicast=yes port=MII speed=100Mbit/s
resources: irq:126 ioport:3000(size=256)
memory:94004000-94004fff memory:94000000-94003fff
lsmod | grep -i iwl:
iwlmvm 303104 0
mac80211 552960 1 iwlmvm
iwlwifi 176128 1 iwlmvm
cfg80211 466944 3 iwlwifi,mac80211,iwlmvm
compat 16384 4 cfg80211,iwlwifi,mac80211,iwlmvm
Note that the ethernet card is working properly, so that I can be sure the
router is working, and that the wireless card worked with windows, which means
that the hardware itself is fine.
I can only guess, but I think the problem is with rfkill rather than with the
drivers. I have seen that some people have tried creating a file called
'ideapad.conf' in /etc/modprobe.d, and having that file contain the line
'blacklist ideapad_laptop'. On Ubuntu forums, users have reported that this
solved their problem. However, if I attempt this, upon reboot, the output of
rfkill is:
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Rather than disabling the kill switch which is causing the hard block, this
measure removes the device altogether from rfkill. The ifconfig -a output is
identical to that shown above, but attempting to enable the device with
'ifconfig wlan0 UP' and to connect with wpa_supplicant fails. wpa_supplicant
tells me that I may have the wrong key, but I have double and triple checked
the wpa_supplicant.conf file, and both the key and ssid are correct.
I am at a total loss for a solution to this problem. I greatly appreciate any
help you can offer.
Levi
