<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [HD Graphics 4000] Garbage on screen on Samsung NP900X3E-A02" href="https://bugs.freedesktop.org/show_bug.cgi?id=64332#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [HD Graphics 4000] Garbage on screen on Samsung NP900X3E-A02" href="https://bugs.freedesktop.org/show_bug.cgi?id=64332">bug 64332</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre> This is for Urs, murmlos, and cpcpcp: (In reply to <a href="show_bug.cgi?id=64332#c0">comment #0</a>) > move with it or disappear. Strangely, if a line was present for long, it can > "stay" on the screen across reboots, being even visible in BIOS and in > Windows 8 if I reboot in the other OS. Turning the machine totally off and > letting it like that for a long time makes the artifact disappear. Does booting to Windows ever cause the lines to appear if they were not previously present? I.e. is it only the Linux driver that makes them show up, or not? > Starting the machine with kernel option noreboot (and also noacpi) makes the > bug disappear. (Xorg starts using the FBDEV vesa driver) Does using a lower resolution help? Please try the drm-intel-nightly branch of <a href="http://cgit.freedesktop.org/~danvet/drm-intel/">http://cgit.freedesktop.org/~danvet/drm-intel/</a> - specifically I'm wondering if commit a65851af59387146a28a928c3e7bb17dabc5db72 Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>> Date: Tue Apr 23 15:03:34 2013 +0300 drm/i915: Make data/link N value power of two might help this.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>