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<body><span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - intel_backlight doesn't work with i915 Haswell"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92866">bug 92866</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEEDINFO
</td>
<td>RESOLVED
</td>
</tr>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - intel_backlight doesn't work with i915 Haswell"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92866#c13">Comment # 13</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - intel_backlight doesn't work with i915 Haswell"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92866">bug 92866</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>This bug just got so confusing and misleading so fast that I will close this
one right now, and kindly ask you to file new, clear bug reports with *one*
issue and *one* platform per bug that you have. There are too many things
conflated here now.
Don't report bugs about vbetool or its use.
The bug report was (or at least I thought it was) originally about Haswell, but
all the attached dmesgs are captured on a Valleyview. That particular
Valleyview has a VBT (video bios table) that says the machine does *not* have
backlight at all. Indeed we don't detect eDP or LVDS on it, so it's natural
that there's no backlight. (Maybe that is a bug in your perspective as well,
but it has to be a separate one.)
<a href="show_bug.cgi?id=92866#c12">Comment #12</a> also brings up a Pineview.
We don't really know or care about the congatec vs. advantech BIOS versions;
please refer to the hardware platforms.
In <a href="show_bug.cgi?id=92866#c3">comment #3</a> I asked you to write to the "brightness" attribute to check
whether intel_backlight works. Not acpi_backlight nor bl_power. I didn't ask
you to try bl_power on purpose because it's confusing. 0 means on, and 4 means
off.
So let's start afresh.</pre>
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