linux-kernel - Re: keyboard backlight max_brightness bug on Dell Latitude E6410

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Message-ID: <20170914080659.GL32278@pali>
Date:   Thu, 14 Sep 2017 10:06:59 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     "Gabriel M. Elder" <gabriel@...gnowsys.com>
Cc:     dvhart@...radead.org, andy@...radead.org,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: keyboard backlight max_brightness bug on Dell Latitude E6410

On Monday 11 September 2017 23:25:27 Gabriel M. Elder wrote:
> <html><body><span style="font-family:Verdana; color:#000; font-size:10pt;"><div>Hi all,</div><div><br></div><div>Hans de Goede, one of the upower maintainers, suggested I alert you all to this bug:</div><div><br></div><div><a href="https://bugs.freedesktop.org/show_bug.cgi?id=100041" mce_href="https://bugs.freedesktop.org/show_bug.cgi?id=100041" title="https://bugs.freedesktop.org/show_bug.cgi?id=100041" target="_blank">https://bugs.freedesktop.org/show_bug.cgi?id=100041</a><br></div><div><br></div><div>and the new one I filed via the kernel bugzilla:</div><div><br></div><div><a href="https://bugzilla.kernel.org/show_bug.cgi?id=196913" mce_href="https://bugzilla.kernel.org/show_bug.cgi?id=196913" title="https://bugzilla.kernel.org/show_bug.cgi?id=196913" target="_blank">https://bugzilla.kernel.org/show_bug.cgi?id=196913</a><br></div><div><br></div><div>"<span id="summary_container"><span id="short_desc_nonedit_display">keyboard backlight max_brightness value outside allowable range on Dell Latitude E6410 laptop"</span></span></div><div><br></div><div>Please check it out at your earliest convenience.</div><div><br></div><div>thanks,</div><div>- Gabriel</div></span></body></html>

Hi Gabriel, please avoid sending such html emails to mailing list as it
is hard to read them and also you have a very big chance that email
would be eaten by spam filter or other developers would completely
ignore it...

To debug your problem, can you run smbios-keyboard-ctl tool from the
libsmbios project? https://github.com/dell/libsmbios

We would need output from --info parameter and also from --get-status.

-- 
Pali Rohár
pali.rohar@...il.com