[Bug 70254] [snb dp hotplug] Pipe B, PCH transcoder B FIFO underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70254

--- Comment #34 from Robert N <crshman at gmail.com> ---
Ok, so it looks like I have this now.

root at rnavarro-thinkpad:/sys/kernel/debug/dri/0# cat i915_pri_wm_latency
WM0 7 (0.7 usec)
WM1 3 (1.5 usec)
WM2 4 (2.0 usec)
WM3 22 (11.0 usec)

root at rnavarro-thinkpad:/sys/kernel/debug/dri/0# echo '14 6 8 44' >
i915_pri_wm_latency

root at rnavarro-thinkpad:/sys/kernel/debug/dri/0# cat i915_pri_wm_latency
WM0 14 (1.4 usec)
WM1 6 (3.0 usec)
WM2 8 (4.0 usec)
WM3 44 (22.0 usec)

Ran the commands just as described, would it make sense to figure out what the
minimums are?

Does it matter which WMx I'm changing?

Should I change them all at the same time as described, or one by one?

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