内核日志中的这些 i915 错误是什么意思？

Question

目前我的内核日志有这些错误，

i915: [drm] *ERROR* CPU pipe C FIFO underrun: transcoder,
i915: [drm] *ERROR* [ENCODER:350:DDI TC3/PHY TC3][DPRX] Failed to enable link training
i915: [drm] *ERROR* Step 2 of creating MST payload for 0000000095f4377a failed: -5
i915: [drm] *ERROR* CPU pipe C FIFO underrun: transcoder,
i915: [drm] *ERROR* [ENCODER:350:DDI TC3/PHY TC3][DPRX] Failed to enable link training
i915: [drm] *ERROR* Step 2 of creating MST payload for 0000000095f4377a failed: -5
i915: [drm] *ERROR* CPU pipe C FIFO underrun: transcoder,

他们的意思是什么？他们应该担心吗？