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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [sdvo lvds regression] "Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC""
href="https://bugs.freedesktop.org/show_bug.cgi?id=65524#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [sdvo lvds regression] "Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC""
href="https://bugs.freedesktop.org/show_bug.cgi?id=65524">bug 65524</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Of course, that commit is just the icing on the case. After Egbert's patch, we
successfully read the EDID for the SDVO panel and then things go wrong...
Before:
[ 0.610486] [drm:drm_helper_probe_single_connector_modes],
[CONNECTOR:15:LVDS-2] probed modes :
[ 0.610490] [drm:drm_mode_debug_printmodeline], Modeline 17:"1024x600" 60
50500 1024 1034 1066 1348 600 612 616 624 0x48 0xa
After:
[ 0.653730] [drm:drm_helper_probe_single_connector_modes],
[CONNECTOR:15:LVDS-2] probed modes :
[ 0.653733] [drm:drm_mode_debug_printmodeline], Modeline 18:"1024x600" 60
44700 1024 1034 1066 1194 600 612 616 624 0x48 0xa
[ 0.653739] [drm:drm_mode_debug_printmodeline], Modeline 19:"1024x600" 40
29800 1024 1034 1066 1194 600 612 616 624 0x40 0xa
And then there is an even greater discrepancy in the adjusted modes for the
first modeset:
Before:
[ 1.110223] [drm:intel_dump_pipe_config], adjusted mode:
[ 1.110228] [drm:drm_mode_debug_printmodeline], Modeline 0:"1024x600" 60
101000 1024 1034 1066 1348 600 612 616 624 0x48 0xa
After:
[ 1.186459] [drm:intel_dump_pipe_config], adjusted mode:
[ 1.186463] [drm:drm_mode_debug_printmodeline], Modeline 0:"1024x600" 60
178800 1024 1034 1066 1194 600 612 616 624 0x48 0xa
Before we have a pixel multiplier of about 2, and afterwards closer to 4.</pre>
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