Hi guys,
My libreboot T60 decided to brick itself after I closed it and put it
in my backpack yesterday.
The wiki[1][2] assumes that the device became bricked while installing
libreboot. This is not the case for me, so I'm a little unsure of
where to start.
What I know:
- The screen+backlight are getting power; when I first pulled it out
of my backpack and woke it up, it was on, filled with the solid
color that is my X11 background. However, after power-cycling...
- the screen doesn't appear to respond at all. Looking very closely
at it, I can't see anything; I don't believe that the issues is as
simple as the backlight not turning on (an issue that I had when
upgrading libreboot at libreplanet last year).
- The SSD is good (tested in another box)
- Replacing the RAM doesn't fix it.
- Plugging in an external monitor (VGA) does nothing.
- All internal connections seem secure, but it's possible I missed
something.
- One of two things happens when I try booting:
1. The HDD light flickers briefly, and I hear the CD drive spin (checking
if something's in it), then nothing but the power light being
on.
2. The HDD light flickers, and continues to do so, in a manner
consistent with a normal boot. But then, it stops, and the
caps-lock light starts blinking.
- In neither of the above 2 cases does typing my username & password
to log in, then trying to run sound-generating commands do
anything.
I believe that case 1 is libreboot failing to even load the Linux
kernel, and case 2 is Linux starting but then panicking.
My next step is going to be pulling the CMOS coin in case BUC.TS
somehow got set.[1]
Given that I believe that the Linux kernel is sometimes panicking, I'd
love EHCI debugging, but it appears[2] that I need to have the box
working first to identify which USB port to use. Is it consistent
across libreboot-supported T60's? Could one of you tell me which port
works?
I guess my final thing to try would be to use my BBB+SOIC-8-clip to
try to re-flash the firmware, but it seems unlikely to me that that
would fix it.
Any help or advice would be hugely appreciated.
[1]: https://libreboot.org/docs/install/t60_unbrick.html
[2]: https://libreboot.org/docs/install/bbb_ehci.html