[Bug 216936] First attempt to upload firmware for Intel Bluetooth fails (a timing issue?)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=216936

Mark Pearson (mpearson-lenovo@squebb.ca) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpearson-lenovo@squebb.ca

--- Comment #31 from Mark Pearson (mpearson-lenovo@squebb.ca) ---
Bit of a long shot - but try removing the SBDC call in thinkpad_acpi

https://github.com/torvalds/linux/blob/fa084c35afa13ab07a860ef0936cd987f9aa0460/drivers/platform/x86/lenovo/thinkpad_acpi.c#L4181

(afraid you'll need to edit code and build a kernel)

We've seen a few issues on recent platforms with disabling Wifi, related to
this call. It's not used on Windows, and it can put the Wifi in a disabled
state that it doesn't recover from.

I've been trying to track down what changed and why. We originally thought it
was Mediatek modems only, but have seen it on Intel too. On impacted platforms
we've been turning that SBDC call into a no-op as a fix in the BIOS (I don't
want to break older platforms where this might be needed, so have avoided a
kenrnel fix so far).
I'm a bit worried the problem is more widespread than originally expected.

We see the issue when disabling Wifi from the systray on Gnome, but it's fine
when done from gnome-control-center. Very weird.

-- 
You may reply to this email to add a comment.

You are receiving this mail because:
You are the assignee for the bug.