[Nouveau] [Bug 103351] Nouveau fails when booting with a screen connected to displayport since 13a86519202c5d119d83640d6f781f3181205d2c

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103351

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
This appears to be a GM204.

Note that 13a8651920 fixed a regression for most people precisely of the type
that it caused for you, i.e. DDC failing.

So it sounds like the address-only transactions were actually working well for
you before (which basically is impossible since *size - 1 would have been
0xffffffff and have overwritten the whole ctrl), and these have now been
broken.

This leads me to believe that a different bit is now the address-only
transaction bit. In gm200_i2c_aux_xfer, we assume it's 0x100 (same as for
GF119+). Ben, did you trace it on GM200+ separately?

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20171018/9bfea8f0/attachment.html>