https://bugs.freedesktop.org/show_bug.cgi?id=103383
--- Comment #1 from Ilia Mirkin <[email protected]> ---
I have some recollection that someone else reported a similar issue with a
GP10x laptop GPU -- the backlight control wasn't working.
Perhaps this is similar. Or perhaps we need to explicitly turn the PANEL_POWER
back on (we do it when initially detecting the panel, but never touch it again
in nouveau_connector.c)
Or perhaps NV_DEVICE_INFO_V0_PASCAL is missing from the switch in
nouveau_backlight.c (it is), although as I was saying, someone was having
trouble with it... see bug #100446.
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