On 3/16/22 10:29 AM, Limonciello, Mario wrote:
[Public]
+ Alex D
Alex, just FYI this was something that came to an AMD bug tracker and wanted you to be aware there are W/A going into nvidia-wmi-ec-backlight for some firmware problems with the mux.
IIRC that was the original suspicion too on the bug reports.
Is this on a public or private bug tracker? If this was observed on
systems other than the one already added to these quirks, could you
share the details of the systems so they can be added as well? (Or I
suppose you may want to test to see if these WARs are effective on the
affected systems as well; we can always expand the quirks table later.)
Comments inline as well.
-----Original Message-----
From: Daniel Dadap <ddadap@xxxxxxxxxx>
Sent: Wednesday, March 16, 2022 10:11
To: Barnabás Pőcze <pobrn@xxxxxxxxxxxxxx>
Cc: platform-driver-x86@xxxxxxxxxxxxxxx; Alexandru Dinu
<alex.dinu07@xxxxxxxxx>; Hans de Goede <hdegoede@xxxxxxxxxx>;
markgross@xxxxxxxxxx
Subject: Re: [PATCH] nvidia-wmi-ec-backlight: Add workarounds for
confused firmware
[ ... ]
On 3/15/22 9:50 PM, Barnabás Pőcze wrote:
[ ... ]
Lastly, is it expected that these bugs will be properly fixed?
Possibly, but I wouldn't hold out hope for it for an issue at this scale
on an already shipping system.
This question I'm assuming was aimed at narrowing the quirk to only
match certain FW versions or so. If there is no certainty of when/if it
will be fixed I agree with current direction.
However I think it's still worth at least noting near the quirk in a comment
what firmware version it was identified. If later there is confirmation that
a particular firmware version had fixed it the quirk can be adjusted to be
dropped.
Thanks, Mario. Sure, I'll make sure the firmware version this was first
observed in is noted.
