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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [i945GM regression] kernel 3.7-rc1 onwards. backlight on, screen dark after KMS kicks in during boot"
href="https://bugs.freedesktop.org/show_bug.cgi?id=57365#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [i945GM regression] kernel 3.7-rc1 onwards. backlight on, screen dark after KMS kicks in during boot"
href="https://bugs.freedesktop.org/show_bug.cgi?id=57365">bug 57365</a>
from <span class="vcard"><a class="email" href="mailto:tmezzadra@gmail.com" title="Tomas M. <tmezzadra@gmail.com>"> <span class="fn">Tomas M.</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=57365#c4">comment #4</a>)
<span class="quote">> Can you please grab the latest intel-gpu-tools
> (<a href="http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/">http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/</a>) and then run the
> intel_reg_dumper tool both on a working and a broken kernel?
>
> The bisected commit makes some sense, since after that we drop a bunch of
> spurious state-transitions. Could be that those papered over some bugs and
> now we can't enable the hw correctly any longer.</span >
what do you make of this error?
# intel_reg_dumper
Gen2/3 Ranges are not supported. Please use unsafe access.Aborted
i cant find out how to use "unsafe access". any hint?</pre>
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