什么是DCC Transfers呀？
我的显卡是七彩虹 GeForce 4 MX 440，内核参数为video=vesafb-tng:mtrr,ywrap,1024x768-24@85
但是每次启动的时候vesafb都会抱怨说我的硬件不支持DCC Transfers，刷新率总是56Hz。这个DCC Transfers是什么东西?是我显卡太局限了还是哪设置不好？
vesafb: NVIDIA Corporation, NV18 Board - p118dtnz, Chip Rev A4 (OEM: NVIDIA)
vesafb: VBE version: 3.0
vesafb: protected mode interface info at c000:e4e0
vesafb: pmi: set display start = c00ce516, set palette = c00ce580
vesafb: pmi: ports = 3b4 3b5 3ba 3c0 3c1 3c4 3c5 3c6 3c7 3c8 3c9 3cc 3ce 3cf 3d0 3d1 3d2 3d3 3d4 3d5 3da
vesafb: hardware doesn't support DCC transfers
vesafb: monitor limits: vf = 0 Hz, hf = 0 kHz, clk = 0 MHz
vesafb: scrolling: redraw 写错了吧
video=vesafb:mtrr,ywrap,1024x768-24@85
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