<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54226#c29">Comment # 29</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54226">bug 54226</a> from <a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> Ben Widawsky</a> <pre>(In reply to <a href="show_bug.cgi?id=54226#c27">comment #27</a>) > > The only interesting patch I can suggest atm is > > > > commit 31643d54a739382626c27c0f2a12b3bbc22d1a38 > > Author: Ben Widawsky <<a href="mailto:ben@bwidawsk.net">ben@bwidawsk.net</a>> > > Date: Wed Sep 26 10:34:01 2012 -0700 > > > > drm/i915: Workaround to bump rc6 voltage to 450 > > > > BIOS should be setting the minimum voltage for rc6 to be 450mV. Old or > > buggy BIOSen may not be doing this, so we correct it for them. Ideally > > customers should update the BIOS as only it would know the optimal > > values for the platform, so we leave that fact as a DRM_ERROR for the > > user to see. > > > > in 3.8-rc1 or look for a BIOS update. > > I have H61M/U3S3 motherboard and you latest BIOS ver 2.20 from 8/15/2012 > <a href="ftp://174.142.97.10/bios/1155/H61MU3S3(2.20)ROM.zip">ftp://174.142.97.10/bios/1155/H61MU3S3(2.20)ROM.zip</a> > How to check problem persists or not? The easiest way is to apply the patch and look for DRM_DEBUG_DRIVER messages. This is unlikely to fix the problem, but also can't hurt. We've only assumed new BIOS will fix the problem, but who knows. Especially if it's a 3rd party BIOS.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>