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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [bdw regression 4.8] Severe graphics regression, rainbow glitching and flickering on Intel Broadwell 5500U integrated graphics"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97918#c20">Comment # 20</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [bdw regression 4.8] Severe graphics regression, rainbow glitching and flickering on Intel Broadwell 5500U integrated graphics"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97918">bug 97918</a>
from <span class="vcard"><a class="email" href="mailto:clinton.a.taylor@intel.com" title="Clinton Taylor <clinton.a.taylor@intel.com>"> <span class="fn">Clinton Taylor</span></a>
</span></b>
<pre>This appears to be an issue with the low_vswing vbt setting. If low vswing is
causing the issue there is a kernel parameter that overrides the setting.
Please try:
i915.edp_vswing=2
This forces 'high' 400mv vswing settings.</pre>
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