<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [SNB IVB HSW] Call trace appears after system booting up" href="https://bugs.freedesktop.org/show_bug.cgi?id=67462#c7">Comment # 7</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [SNB IVB HSW] Call trace appears after system booting up" href="https://bugs.freedesktop.org/show_bug.cgi?id=67462">bug 67462</a> from <a class="email" href="mailto:cancan.feng@intel.com" title="cancan,feng <cancan.feng@intel.com>"> cancan,feng</a> <pre>(In reply to <a href="show_bug.cgi?id=67462#c5">comment #5</a>) > (In reply to <a href="show_bug.cgi?id=67462#c4">comment #4</a>) > > (In reply to <a href="show_bug.cgi?id=67462#c3">comment #3</a>) > > > This should be entertaining. I'll see what I can do with it. Now to find SNB > > > hardware... > > > > Hi, I check this again(using a latest -next-queued kernel) and find this > > issue happens on SNB, IVB and HSW platforms. > > Besides, calltrace has nothing to do with DP, it happens even if system > > booting without a monitor. So I think you can use any of these platforms to > > reproduce it.. :) > > We have two calltraces in the dmesg here. The first one is > > [ 1.177979] WARNING: CPU: 1 PID: 1236 at > drivers/gpu/drm/i915/intel_display.c:842 ironlake_crtc_disable+0xd6/0x83c > [i915]() > > Thus far that tends to only happen with DP when we try to switch it off. > I'm a little confused here..Do you mean this "WARNING" is what we should focus?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>