显卡驱动，DMA问题

rockman0512

买了个NB，ACER Aspire 5542  ,945G芯片组
(1)显卡用的是vesa-Genetic VESA-Compliant vedio cards,应该是通用显卡驱动，如何装上专用的驱动呢？
(2)先看硬盘信息
Probing IDE interface ide0...
hda: TOSHIBA MK6034GAX, ATA DISK drive
hdb: MATSHITADVD-RAM UJ-850S, ATAPI CD/DVD-ROM drive
ide1: I/O resource 0x170-0x177 not free.
ide1: ports already in use, skipping probe
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: max request size: 512KiB
hda: 117210240 sectors (60011 MB), CHS=16383/255/63
hda: cache flushes supported

[root@localhost ~]# hdparm /dev/hda

/dev/hda:
multcount    = 16 (on)
IO_support   =  3 (32-bit w/sync)
unmaskirq    =  1 (on)
using_dma    =  0 (off)
keepsettings =  0 (off)
readonly     =  0 (off)
readahead    = 256 (on)
geometry     = 16383/255/63, sectors = 117210240, start = 0

尝试打开DMA
[root@localhost ~]# hdparm -d 1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
速度
Timing cached reads:   3880 MB in  2.00 seconds = 1940.66 MB/sec
Timing buffered disk reads:    8 MB in  3.67 seconds =   2.18 MB/sec

看论坛上讲，我重新编译了内核2.6.17.9，还是没用，望各位兄弟帮忙，郁闷ing!

rockman0512

帮助一下啊，现在又花屏了