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Day: May 19, 2016

Rename network interfaces in Ubuntu

Posted on May 19, 2016 - September 25, 2016 by Mr. Reboot

Tested on Ubuntu 16

From Ubuntu 15, network interfaces names are generated by systemd/udev using predictable names based in several policies and schemes like firmware, BIOS, interface’s MAC address, geographical location and others. Names like enp2s0 for example.

However it’s possible change the name, if you want retro-compatibility with old software or for scripting, to do it add net.ifnames=0 to the /etc/default/grub file:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash net.ifnames=0"

Now make an update-grub:

~ $ sudo update-grub

And reboot:

~ $ sudo reboot

Interfaces now be called eth0, wlan0, eth1 etc…

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Tuning ubuntu on Asus X series

Posted on May 19, 2016 - September 18, 2016 by Mr. Reboot

It’s probably you’ll have to tuning several things in Ubuntu 15/16 if you are an owner of a laptop ASUS X series.

If yo get this error on syslog and/or by stderr (a lot of records by second):

printk messages dropped pcieport 0000:1c.5 Receiver Error
pcieport 0000:00:1c.5 PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID)

add pci=nomsi to the /etc/default/grub file:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=nomsi"

Also you’ll want control brightness via system keys, if don’t work, try adding acpi_osi=, acpi_backlight=native and intel_idle.max_cstate=1 to the /etc/default/grub file too:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=nomsi acpi_osi= acpi_backlight=native intel_idle.max_cstate=1"

Now make an update-grub:

~ $ sudo update-grub

At last, if you experiment disconnections on wireless mode check if your wlan driver is rtl8723be:

~ $ lspci | grep -i wireless
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter

If yes create a configuration file en /etc/modprobe.d:

~ $ sudo touch /etc/modprobe.d/rtl8723be.conf

And add this:

~ $ sudo echo 'options rtl8723be fwlps=0' > /etc/modprobe.d/rtl8723be.conf

Finally reboot:

~ $ sudo reboot
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