So aktivieren Sie WIFI auf dem neuen Ubuntu-Dell-Laptop

Ich habe mir gerade einen neuen Dell-Laptop gekauft und Ubuntu 16.04.4 darauf installiert:

https://www.google.com/search?q=dell+inspiron+17+5000&oq=dell+inspiron+17+5000

Wenn ich mich einloggen, sehe ich folgendes:

Ubuntu 16.04.4 LTS  Linux d79 4.4.0-127-generic #153-Ubuntu SMP Sat May 19 10:58:46 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux 

Wifi funktioniert nicht.

Ich sehe hier einen Hinweis:

dan@d79:~ $ lspci 00:00.0 Host bridge: Intel Corporation Device 5914 (rev 08) 00:02.0 VGA compatible controller: Intel Corporation Device 5917 (rev 07) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21) 00:17.0 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) 00:1f.0 ISA bridge: Intel Corporation Device 9d4e (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (rev ff) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07) 03:00.0 Network controller: Qualcomm Atheros Device 0042 (rev 31) dan@d79:~ $  dan@d79:~ $  

Und ich sehe hier einen Hinweis:

dan@d79:~ $ dmesg | grep -i ath [ 174.153964] ath10k_pci 0000:03:00.0: enabling device (0000 -> 0002) [ 174.154791] ath10k_pci 0000:03:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0 [ 175.004439] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/cal-pci-0000:03:00.0.bin failed with error -2 [ 175.004459] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-5.bin failed with error -2 [ 175.004461] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-5.bin': -2 [ 175.004465] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-4.bin failed with error -2 [ 175.004466] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-4.bin': -2 [ 175.004470] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-3.bin failed with error -2 [ 175.004471] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-3.bin': -2 [ 175.004474] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-2.bin failed with error -2 [ 175.004476] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-2.bin': -2 [ 175.004480] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware.bin failed with error -2 [ 175.004481] ath10k_pci 0000:03:00.0: could not fetch firmware (-2) [ 175.004483] ath10k_pci 0000:03:00.0: could not fetch firmware files (-2) [ 175.004484] ath10k_pci 0000:03:00.0: could not probe fw (-2) dan@d79:~ $  dan@d79:~ $ 

Ich würde mich über Ideen freuen, wie ich WLAN auf meinem Ubuntu-Dell-Laptop zum Laufen bringen kann.