<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [gm45] Backlight shuts off during boot when KMS is enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=53153#c31">Comment # 31</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [gm45] Backlight shuts off during boot when KMS is enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=53153">bug 53153</a> from <a class="email" href="mailto:jphilipabbott@gmail.com" title="Jay Abbott <jphilipabbott@gmail.com>"> Jay Abbott</a> <pre>(In reply to <a href="show_bug.cgi?id=53153#c27">comment #27</a>) > (In reply to <a href="show_bug.cgi?id=53153#c26">comment #26</a>) > > At [1] which patch(es) should I apply? > > > > Or should I just build and install the kernel at [2]/backlight? > > I'm afraid there were other issues with the patches. To check out an idea, > please attach the output of: > > $ cat /sys/kernel/debug/dri/0/i915_opregion | od -t x1 I apologize for the correspondence gap. Here is the output: jay@jay-debian:~$ cat /sys/kernel/debug/dri/0/i915_opregion | od -t x1 cat: /sys/kernel/debug/dri/0/i915_opregion: No such file or directory 0000000 I will now test the patch (<a href="attachment.cgi?id=66926" name="attach_66926" title="always use LBPC 0xff in combination mode">attachment 66926</a> <a href="attachment.cgi?id=66926&action=edit" title="always use LBPC 0xff in combination mode">[details]</a> <a href='page.cgi?id=splinter.html&bug=53153&attachment=66926'>[review]</a>), and if this does not solve the problem I'll try the booting with the i915.invert_brightness=1 parameter...</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>