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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Big monitor has blank display (HDMI or DVI) in any kernel since and including 3.13 (despite earlier fixes)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90128#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Big monitor has blank display (HDMI or DVI) in any kernel since and including 3.13 (despite earlier fixes)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90128">bug 90128</a>
from <span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span></b>
<pre>(In reply to philipmorant from <a href="show_bug.cgi?id=90128#c14">comment #14</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=130590" name="attach_130590" title="dmesg">attachment 130590</a> <a href="attachment.cgi?id=130590&action=edit" title="dmesg">[details]</a></span>
> dmesg
>
> Trying manual xrandr:
>
> xrandr --newmode "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443
> 1448 1493 -hsync +vsync
> xrandr --addmode HDMI1 2560x1440_60.00
>
> screen goes blank. gnome is treating it as switched off.</span >
HSW doesn't support > 300 MHz clock with HDMI
[ 160.088402] [drm:intel_hdmi_compute_config [i915]] unsupported HDMI clock,
rejecting mode
The only mode the EDID shows is:
xrandr --newmode "2560x1440" 241.5 2560 2608 2640 2720 1440 1443 1448 1481
+hsync -vsync
And the mode used by the BIOS would be:
xrandr --newmode "1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync
-vsync
Can you try either of those?</pre>
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