chromebook trogdor

bootable sd card images

tested systems - working

acer chromebook spin sp513-1h/sp513-1hl - lazor
- see also: #47
hp chromebook x2 - coachz
- see also: #44
lenovo chromeboot duet 5 - homestar
- see also: #68
lenovo chromeboot duet 3 - wormdingler
- see also: #182

untested systems

according to the dts files in the kernel there are maybe other trogdor models as well

generic mainline linux on arm chromebook notes

https://github.com/hexdump0815/linux-mainline-on-arm-chromebooks/blob/main/readme.md

kernel build notes

https://github.com/hexdump0815/linux-mainline-and-mali-generic-stable-kernel/blob/master/readme.cbq

mesa build notes

https://github.com/hexdump0815/mesa-etc-build/blob/master/mesa-build.txt

priority

medium: will be worked on and improved from time to time

special notes

wifi, bt, basic sound (at least on on lazor and wormdingler) seem to be ok, suspend/resume does not seem to work properly yet if running from usb, when running from emmc it seems to work
wormdingler: the display rotation will be set properly during the first boot, afterwards it will reboot once automatically and should come up with the display correctly set to landscape mode - so please don't be surprised about the first automatic reboot and be ready with ctrl-u for the second boot :)
the current sound setup is not complete yet (and broken on homestar right now):
- headphones and headset mic do not work yet, so better use a small usb audio interface for a headset if needed for now
on lazor the keyboard backlight can be controlled via /sys/class/leds/cros_ec::kbd_backlight/brightness (values can go from 0-1023)
when booting from an usb medium the bootup might hang waiting to discover the root device - in such cases it might help to shortly unplug and replug the usb medium the system is booted from