<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [Intel GM45][i915-kms]: VGA encoder on SDVOB remains blank when i915.ko is loaded while gfx is in text mode." href="https://bugs.freedesktop.org/show_bug.cgi?id=63031#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [Intel GM45][i915-kms]: VGA encoder on SDVOB remains blank when i915.ko is loaded while gfx is in text mode." href="https://bugs.freedesktop.org/show_bug.cgi?id=63031">bug 63031</a> from <a class="email" href="mailto:eich@pdx.freedesktop.org" title="Egbert Eich <eich@pdx.freedesktop.org>"> Egbert Eich</a> <pre>(In reply to <a href="show_bug.cgi?id=63031#c11">comment #11</a>) > Actually this is wrong, if the encoder is active it should _always_ have a > crtc. Can you please sprinkle printks and try to figure out why the encoder > is active, but doesn't seem to have a crtc attached? I had added such printks already. In the logs I've posted you will find lines containing "DAC-11->base.crtc <=". In fact the encoder is not active: intel_sdvo_get_hw_state() returns false. Thus it doesn't have a crtc: [ 3.703241] [drm:intel_modeset_setup_hw_state], 2: DAC-11->base.crtc <= (null) Still it has active outputs: intel_sdvo_get_active_outputs() returns 2. What I seem to have found out now: When an encoder is disabled (bit 31 of GEN3_SDVOx is 0) then it must not have active outputs or SDVO_CMD_GET_ATTACHED_DISPLAYS will not return a result (it will remain in pending state).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>