Dell Latitude E6400

The Dell Latitude E6400 is an alternative to the X200/T400 laptop, because it is is possible to install Canoeboot on it. Unlike X200/T400 etc, the Dell Latitude E6400 can be flashed from software, from vendor BIOS to Canoeboot. Of course it is possible to install Trisquel GNU/Linux on it, too.

Hardware

The Dell Latitude E6400 has the same hardware gen as X200/T400 (GM45), so it's reasonably fast for many types of users. The Latitude E6400 has a similar screen/keyboard quality like the X200/T400 and also comes with a track point. It is more popular than ThinkPads, so the chances are good to get one.

There are variants with nvidia or intel graphics.

Read the hardware info page from the Canoeboot Project here: https://canoeboot.org/docs/hardware/e6400.html

Flashing the BIOS for the E6400

The board can boot entirely free software in the flash. The hardware is similar to that of ThinkPad X200, T400 etc where no-ME setup is possible.

Read the installation page about flashing here: https://canoeboot.org/docs/install/latitude.html#latitude-e6400

Note: Software flashing is possible! (no disassembly needed)

Troubleshooting

Long boot time of most linux-libre kernels

Symptoms

  • The delay of boot time is about 1 minute
  • The corresponding output is clocksource: long readout interval

Workaround

Setting the boot parameter tsc=hpet

  • open the file /etc/default/grub as root

 # nano /etc/default/grub
  • add the boot parameter tsc=hpet to GRUB_CMDLINE_LINUX_DEFAULT

  • save changes and quit
  • update grub
 # update-grub

Revisions

12/22/2023 - 11:55
knife
11/03/2025 - 06:21
icarolongo