<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=67813#c50">Comment # 50</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=67813">bug 67813</a> from <a class="email" href="mailto:przanoni@gmail.com" title="Paulo Zanoni <przanoni@gmail.com>"> Paulo Zanoni</a> <pre>(In reply to <a href="show_bug.cgi?id=67813#c49">comment #49</a>) > Paulo has a new set of patches iirc ... We recently merged the patches to fix the case where the power well is _enabled_ while we do module_unload. I'm not sure how QA tests this bug, but this case should be fixed. What remains is the patch to enable the power well in case we unbind fbcon. I have an implementation for this, but it touches the FB layer and it seems people don't want to touch those files (even if we just add some callback support). I need do re-check if there's a way to implement this without touching anything outside drivers/gpu/drm/i915 (I already did it once, but can try again...). If we do this, the code will work regardless of the loaded console. Chris recently submitted "drm/i915: Kick out vga console" which kills vgacon and, as a consequence, also indirectly solves the problem.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>