DVD a DMA mod

České forum
1

ked chcem prehrat, napalit dvd tak to seka resp. ide strasne pomaly, zrejme bude problem v dma kt. je vypnute, teda - problem c1.

[root@slonik slonik]# /sbin/hdparm -d1 /dev/hdc

/dev/hdc:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)

zrejme je musim prekompilovat kernel

[root@slonik 2.6.19-1.2895.fc6-i586]# make
scripts/kconfig/conf -s arch/i386/Kconfig
CHK include/linux/version.h
CHK include/linux/utsrelease.h
make[1]: *** No rule to make target init/main.o', needed byinit/built-in.o’. Stop.
make: *** [init] Error 2

prosim o radu co stym je to fakt uz na samozvrazdu (mam FC6)

2

Zkuste se podivat na napovedu k prikazu hdparm.

Macky

3

Kernel urcite podporu DMA ma, jen ji na vasem HW z nejakeho duvodu odmita zapnout. Takze se zkuste podivat do naseho navodu Diagnostika problemu a prohlednet dmesg a hledejte nejaky problem s hdc (pokud je hdc skutecne vase dvd mechanika), pak zadejte do googlu typ vasi mechaniky a specifikaci problemu z dmesg resp to co pise hdparm.

4

no to je jedine co som nasiel

hdc: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hdc: drive_cmd: error=0x04 { AbortedCommand }

5

To uz ale vypada spis na chybu pri cteni media nikoli pri startu systemu.


$ dmesg | grep hdc
    ide1: BM-DMA at 0xa808-0xa80f, BIOS settings: hdc:DMA, hdd:pio
hdc: CD-540E, ATAPI CD/DVD-ROM drive
hdc: ATAPI 40X CD-ROM drive, 128kB Cache, DMA