Difference between revisions of "Support/Broadwell"

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(Not model specific anymore ;))
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Intel processors with Broadwell cores are very popular in newer higher-end ChromeOS devices.
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Broadwell core Intel processors are popular in higher end 2014 and 2015 Chromebooks.
  
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Factory firmware support for coreboot and SeaBIOS is spotty, but custom firmware is also available for all Broadwell models as well -- see [[Firmware]].
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Support for Broadwell Chromebooks has been implemented in upstream Linux with aplomb, so you should be able to run any recent Linux distribution you please with little to no friction.
  
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'''Full ROM''' flash is available from CoolStar: https://docs.google.com/document/d/1nFZmoRzQ03btPCGVSa4ku6JPQik-SxD__zOd1CoB2yg/edit (for running Linux, you can follow the flashing instructions and install Linux instead of Windows)
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Factory firmware support for coreboot and SeaBIOS is generally good on Broadwell models (with a few bugs), but custom firmware is also available -- see [[Firmware]].
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*'''Note: Not available for the Pixel 2'''
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** Bypasses the white "OS verification is OFF" screen
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=== GRUB bug with some factory firmwares ===
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** Installs a complete ROM containing a coreboot build and a working SeaBIOS
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* One firmware bug relates to video init in early boot, which prevents the display of the GRUB boot menu. This can be worked around with GRUB settings:
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** Removes the ability to run ChromeOS natively, creating a small risk of bricking your device
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** # Add settings to '''<code>/etc/default/grub</code>'''
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** Will wipe out all product data
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** #* <code>GRUB_TERMINAL=console</code>
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** This option is the most invasive and may include bugs or idiosyncrasies that the stock firmware does not
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** #* <code>GRUB_GFXMODE=1024x768</code>
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** Fixes Graphics issues associated with the RW_LEGACY
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** # Run '''<code>sudo update-grub</code>'''
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** Fixes several issues related to ACPI
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* This bug is not present on full custom [[Firmware]].
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** Enables VT-x, allowing virtual machines to run faster
 
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** Allows booting Linux, Windows and even Mac OS!
 

Latest revision as of 20:45, 10 June 2019

Broadwell core Intel processors are popular in higher end 2014 and 2015 Chromebooks.

Support for Broadwell Chromebooks has been implemented in upstream Linux with aplomb, so you should be able to run any recent Linux distribution you please with little to no friction.

Factory firmware support for coreboot and SeaBIOS is generally good on Broadwell models (with a few bugs), but custom firmware is also available -- see Firmware.

GRUB bug with some factory firmwares

  • One firmware bug relates to video init in early boot, which prevents the display of the GRUB boot menu. This can be worked around with GRUB settings:
    • # Add settings to /etc/default/grub
    • #* GRUB_TERMINAL=console
    • #* GRUB_GFXMODE=1024x768
    • # Run sudo update-grub
  • This bug is not present on full custom Firmware.
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