few tests - incomplete - PM: suspend entry (s2idle)
<7> [932.365400] i915 0000:00:02.0: [drm:intel_c20pll_dump_hw_state [i915]] mpllb[6] = 0x2000
<7> [932.366315] i915 0000:00:02.0: [drm:intel_c20pll_dump_hw_state [i915]] mpllb[7] = 0x0001
<7> [932.367240] i915 0000:00:02.0: [drm:intel_c20pll_dump_hw_state [i915]] mpllb[8] = 0x5000
<7> [932.368190] i915 0000:00:02.0: [drm:intel_c20pll_dump_hw_state [i915]] mpllb[9] = 0x0000
<7> [932.369126] i915 0000:00:02.0: [drm:intel_c20pll_dump_hw_state [i915]] mpllb[10] = 0x0000
<7> [932.370089] i915 0000:00:02.0: [drm:intel_ddi_get_config [i915]] [ENCODER:263:DDI TC2/PHY TC2] Fec status: 0
<6> [932.655524] PM: suspend entry (s2idle)
<6> [932.665026] Filesystems sync: 0.009 seconds
<7> [932.665059] PM: Preparing system for sleep (s2idle)