[Bug 97918] [bdw regression 4.8] Severe graphics regression, rainbow glitching and flickering on Intel Broadwell 5500U integrated graphics

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97918

--- Comment #20 from Clinton Taylor <clinton.a.taylor at intel.com> ---
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.

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