linux 内核好像没有对2440LCD的24BPP支持

227        case 32:
228                /* 24 bpp 888 and 8 dummy */
229                var->red.length         = 8;
230                var->red.offset         = 16;
231                var->green.length       = 8;
232                var->green.offset       = 8;
233                var->blue.length        = 8;
234                var->blue.offset        = 0;
235                break;
236        }