<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Reading EDID on valleyview(device id: 0x0f31) fails" href="https://bugs.freedesktop.org/show_bug.cgi?id=97971#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Reading EDID on valleyview(device id: 0x0f31) fails" href="https://bugs.freedesktop.org/show_bug.cgi?id=97971">bug 97971</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>杨波, can you get /sys/kernel/debug/dri/0/i915_vbt or /sys/kernel/debug/dri/0/i915_opregion from the original reporter? Ville, any idea if we should be looking at some other ddc pin in the VBT, or is the IS_VALLEYVIEW() thing all right? Are there any machines that would have both VGA and DVI connectors, or does having DVI always mean that the VGA is routed to DVI-I? The original commit adding the retry on DVI-I ddc pin isn't too helpful: commit 8e4d36b993898b344f9176147f1dfeca583f81fd Author: <a href="mailto:ling.ma@intel.com">ling.ma@intel.com</a> <<a href="mailto:ling.ma@intel.com">ling.ma@intel.com</a>> Date: Tue Jun 30 11:35:34 2009 +0800 drm/i915: crt fetch EDID by DVI-I converter on G4x platform Usually crt mainly get modes via GPIOA ports. However on G4X platform we need to probe possible ports for DVI-I, which could be wired to GPIOD, then fetch our desired EDID, i.e on DG45ID platform we successfully fetch EDID by GPIOD port. It fixed freedesktop.org <a class="bz_bug_link bz_status_VERIFIED bz_closed" title="VERIFIED FIXED - [Q45 KMS] black screen on console" href="show_bug.cgi?id=21084">bug #21084</a> Signed-off-by: Ma Ling <<a href="mailto:ling.ma@intel.com">ling.ma@intel.com</a>> Signed-off-by: Eric Anholt <<a href="mailto:eric@anholt.net">eric@anholt.net</a>></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>