LinuxQuestions.org
Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 07-25-2007, 03:38 AM   #1
chickenjoy
Member
 
Registered: Apr 2007
Distribution: centos,rhel, solaris
Posts: 200

Rep: Reputation: 30
why hdparm wont enable dma acc?


hdparm -d1 /dev/hdc

Code:
/dev/hdc:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)
How can I permanently enable it? TIA
 
Old 07-25-2007, 07:02 PM   #2
gilead
Senior Member
 
Registered: Dec 2005
Location: Brisbane, Australia
Distribution: Slackware64 14.0
Posts: 4,125

Rep: Reputation: 164Reputation: 164
What type of drive is it? Can you run hdparm -I /dev/hdc and post the output here please?
 
Old 07-26-2007, 01:11 AM   #3
chickenjoy
Member
 
Registered: Apr 2007
Distribution: centos,rhel, solaris
Posts: 200

Original Poster
Rep: Reputation: 30
Code:
/dev/hdc:

ATAPI CD-ROM, with removable media
        Model Number:       Optiarc CD-RW CRX880A                   
        Serial Number:      
        Firmware Revision:  KX07    
Standards:
        Likely used CD-ROM ATAPI-1
Configuration:
        DRQ response: 50us.
        Packet size: 12 bytes
Capabilities:
        LBA, IORDY(can be disabled)
        DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2 
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4 
             Cycle time: no flow control=120ns  IORDY flow control=120ns
thanks
 
Old 09-17-2007, 03:46 PM   #4
nemestrinus
LQ Newbie
 
Registered: Dec 2006
Location: california
Distribution: slackware
Posts: 21

Rep: Reputation: 0
I had a similar problem after I installed Slackware 12.0 on a Toshiba Sattelite A135-S4527 laptop. Apparently it has something to do with the Intel SATA IDE controller. The solution was to disable IDE support in the kernel and make sure that PATA support was enabled in the ATA options. My Toshiba Installation notes are here:

http://danielroberts.org/doc/toshibalinux.html
 
Old 09-17-2007, 08:26 PM   #5
chickenjoy
Member
 
Registered: Apr 2007
Distribution: centos,rhel, solaris
Posts: 200

Original Poster
Rep: Reputation: 30
thanks for that! I'll try it out asap.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Setting DMA with hdparm narc Linux - Hardware 2 06-15-2006 09:06 AM
hdparm can't enable dma with ich6m rob666 Linux - Hardware 5 09-05-2005 05:00 PM
turning DMA on with hdparm geniarse Linux - Hardware 4 09-09-2004 03:47 PM
Enabling DMA with no hdparm SML Red Hat 1 02-22-2004 03:46 PM
hdparm/dma MightyKC Linux - Newbie 7 08-19-2003 08:43 AM


All times are GMT -5. The time now is 02:42 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration