Open Lunchbox Forums

Older discussions of the keyboards
http://forum.thinkpads.com/viewtopic.php?t=44310

and here
https://pay.reddit.com/r/thinkpad/comments/2pc75z/my_thoughts_after_replacing_my_t420_keyboard_alps/

Only $44 now  https://www.laptopscreen.com/English/model/Google/CHROMEBOOK%20PIXEL/

US DOT Hazmat Safety Rule to Place Limits on Lithium Batteries Carried by Passengers Aboard Aircraft Effective January 1, 2008

http://phmsa.dot.gov/portal/site/PHMSA/menuitem.6f23687cf7b00b0f22e4c6962d9c8789/?vgnextoid=24e4ffc638ef6110VgnVCM1000001ecb7898RCRD&vgnextchannel=8fd9f08df5f3f010VgnVCM1000008355a8c0RCRD&vgnextfmt=print

"Most lithium-ion cell phone and standard notebook computer batteries are below 8 grams (~100 watt hours) of equivalent lithium content.  Batteries not installed in electronic devices are not permitted in checked baggage.

The rule limits passengers to not more than two large spare rechargeable lithium-ion batteries in carry-on baggage.  This applies to batteries that exceed 8 grams (~100 watt hours) of equivalent lithium content and less than 25 grams (~300 watt hours) [see attached illustration].  Batteries with more than 25 grams (~300 watt hours) are not allowed in either checked or carry-on baggage."

Are there any LCD's that we might consider using that still use LVDS?

How many Watt Hours should the minimum battery capacity be?

Modular was decided to be able to cover as many different options that people ask for. Some want high performance, long battery life, rugged keyboard and a 12" width. Others want the same with a 15" or 17"display, and others only want a multicore ARM SOC and a durable case with rugged keyboard.

Having the mainboard, batteries, display and keyboards as modules allows the end user to  mix and match the features they want now. This also allows them to upgrade or replace these features in the future.

coreboot is the firmware of choice.

http://www.coreboot.org/

The firmware for the EC will be based on http://www.chromium.org/chromium-os/ec-development

Possible EC's are https://chromium.googlesource.com/chromiumos/platform/ec/+/master/chip/, but most likely a STM32.

http://www.st.com/web/en/catalog/mmc/FM141/SC1169?sc=stm32

AMD has been a supporter of coreboot for the past several years. AMD has also made made BIOS register docs available and many comments are allowed in the coreboot source.

The problem with Intel is that even though Google has provided coreboot source for a few Intel chipsets the source contains no comments for what those magic settings are for and what the other settings in those registers will do. Intel also makes it very difficult for anyone but a chosen few to obtain BIOS register docs.  If this situation were to change then I'd see less problems with designing Intel mainboards for this project.

We could make an exact copy of the Google laptop boards and use the coreboot source but then why not just buy a Chromebook?

T60 Keyboards

Chicony FRU 39T7178
ALPS FRU 39T7118
NMB FRU 39T0958

Have any other part numbers or models that you'd like to see made available?

The LG 2560×1700 13″ 3:2 WQXGA LCD has been the most asked for display.

http://openlunchbox.com/wp-content/uploads/2014/12/LG-12.9-LP129QE1-SPA1-LVDS-2560-1600-400-NITS.pdf 

What are the other displays that you would like to see supported?

How many batteries should the enclosure hold?

Should we just take up all the unused space with room for battery modules?

How many external batteries should we support?