<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - Random blank screen after login with Haswell 4400" href="https://bugs.freedesktop.org/show_bug.cgi?id=70145#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - Random blank screen after login with Haswell 4400" href="https://bugs.freedesktop.org/show_bug.cgi?id=70145">bug 70145</a> from <a class="email" href="mailto:maks@manichord.com" title="Maksim Lin <maks@manichord.com>"> Maksim Lin</a> <pre>Hi, Ok having read this LWN article <a href="http://lwn.net/Articles/588799/">http://lwn.net/Articles/588799/</a> I'm assumming this output: dmesg|grep taint [Thu Apr 3 11:41:39 2014] sdhci: module verification failed: signature and/or required key missing - tainting kernel [Thu Apr 3 11:41:40 2014] sunrpc: module has bad taint, not creating trace events [Thu Apr 3 11:41:40 2014] nfs: module has bad taint, not creating trace events [Thu Apr 3 11:41:40 2014] cfg80211: module has bad taint, not creating trace events ...etc is just because of the bad re-use of the taint flag that will be fixed in 3.15 So given I'm building my own 3.14 kernel with just 1 patch applied from Daniel (<a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - [hsw DP] Ubuntu 12.04 unable to use external monitor through edock" href="show_bug.cgi?id=73694">bug #73694</a>), I'm pretty sure I dont have any tainted modules. I'm rebuilding the 3.14 released kernel now (instead of rc7), will try using "i915.i915_enable_fbc=0" and will report back.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>