Khad's Blog

Some notes running Lenovo E450 on Ubuntu Gnome: 0) Install using UEFI boot Your harddisk will use GPT partition My setting is UEFI boot only, CSM off 1) Wi-Fi disconnect (no problem when using 15.10) sudo apt-get install git build-essential git clone https://github.com/lwfinger/rtlwifi_new.git cd rtlwifi_new make sudo make install http://askubuntu.com/questions/628641/rtl8723be-poor-and-unstable-wireless-in-ubuntu-from-14-04-to-15-04 Create /etc/modprobe.d/rtl8723be.conf options rtl8723be fwlps=0 ips=0 2) Touchpad, when using two finger and moving windows, always jumping to right Go to Settings, Mouse & Touchpad, set Pointer speed to Slow (full left) 3) Grub boot just show grey screen for a few second, then show gnome logo and boot normally Currently no workaround, reported to ubuntu bug 4) Battery charging threshold apt-get install acpi-call-dkms Install tp-acpi-call from https://github.com/teleshoes/tpacpi-bat ./tp-acpi-call -s start 1 40 ./tp-acpi-c

Follow these steps to create bootable USB Flash to boot multiple ISO. Using this USB Flash you dont have to bring many installation/recovery DVD. 1. Format USB Flash using FAT32 partition 2. mount it somewhere to /mnt/MOUNTPOINT 3. Install GRUB2 grub-install --target x86_64-efi --efi-directory /mnt/MOUNTPOINT --boot-directory=/mnt/MOUNTPOINT/boot/ --removable 4. Copy ISO files to /mnt/MOUNTPOINT/iso 5. Edit /mnt/MOUNTPOINT/boot/grub/grub.cfg Use this example for start: menuentry 'lenovo diagnostic' {     set isofile='/iso/linux-bootable-cd-4307318.iso'     loopback loop $isofile     linux (loop)/live/vmlinuz boot=live config findiso=$isofile     initrd (loop)/live/initrd.img } menuentry 'systemrescuecd-x86-4.5.4.iso' {     set isofile='/iso/systemrescuecd-x86-4.5.4.iso'     loopback loop $isofile     linux (loop)/isolinux/rescue64 isoloop=$isofile     initrd (loop)/isolinux/initram.igz } menuentry 'wily-desktop-amd64.iso