Messages in this thread | | | Date | Thu, 12 Sep 2019 09:33:58 +0200 | From | Pali Rohár <> | Subject | Re: [PATCH] platform/x86: dell-laptop: fix phantom kbd backlight on Inspiron 10xx |
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On Thursday 12 September 2019 01:14:48 Pacien TRAN-GIRARD wrote: > This patch registers a quirk disabling keyboard backlight support > for the Dell Inspiron 1012 and 1018. > > Those models wrongly report supporting the KBD_LED_OFF_TOKEN and > KBD_LED_ON_TOKEN SMBIOS tokens, exposing keyboard brightness controls > through sysfs which freeze the system when used. > > The associated SMBIOS calls never return and cause the system to > hang, notably at boot when systemd-backlight tries to restore > previous brightness settings.
Hi! This sounds like a firmware bug. Have you already reported it to Dell?
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=107651 > Signed-off-by: Pacien TRAN-GIRARD <pacien.trangirard@pacien.net>
-- Pali Rohár pali.rohar@gmail.com
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