Ever since I upgraded to SuSE 10.1 I've had an intermittant problem with the CD/DVD player on my work computer. Putting a regular CD (either manufactured or self burned) into the CD player and trying to copy a file/folder onto my hard drive sometimes results in two things. (The determinant seems to be file size, very small files I can copy, anything over about 2 meg and it happens) 1. The file copy indicator shows the copy speed slowing down and eventually it says stalled and the drive light goes off. 2. The entire system freezes. Mouse ceases to work. Cntl-Alt-Del has no effect. Keyboard is unresponsive. The only way to get it back is to press the reset and let the system reboot. In YAST: When I check the ide parameters the current dma mode for the cd is off. If I attempt to reset the DMA for the CDROM to UltraDMA33 I get an error message of: "An error occured while activating the changes. Cannot set required mode '%1' for device '%2'." At a terminal as root, It seems as if I can manually reset the parameter with: hdparm -d1 /dev/hdc however this does not last to the next reboot. ideas on how to make this behavior cease? -- Dr. Roy F. Cabaniss Professor of Marketing University of Arkansas Monticello http://cabanisspc.uamont.edu
On Monday 14 August 2006 22:09, Roy F. Cabaniss wrote:
Ever since I upgraded to SuSE 10.1 I've had an intermittant problem with the CD/DVD player on my work computer.
Have you checked that the cables and connections are clean and sound? I've had similar issues when an IDE ribbon has developed an intermittent fault, or dirt/dust/fluff has built up on connectors Dylan -- "The man who strikes first admits that his ideas have given out." (Chinese Proverb)
Roy F. Cabaniss wrote:
Ever since I upgraded to SuSE 10.1 I've had an intermittant problem with the CD/DVD player on my work computer. Putting a regular CD (either manufactured or self burned) into the CD player and trying to copy a file/folder onto my hard drive sometimes results in two things. (The determinant seems to be file size, very small files I can copy, anything over about 2 meg and it happens)
1. The file copy indicator shows the copy speed slowing down and eventually it says stalled and the drive light goes off.
2. The entire system freezes. Mouse ceases to work. Cntl-Alt-Del has no effect. Keyboard is unresponsive. The only way to get it back is to press the reset and let the system reboot.
In YAST: When I check the ide parameters the current dma mode for the cd is off. If I attempt to reset the DMA for the CDROM to UltraDMA33 I get an error message of:
"An error occured while activating the changes. Cannot set required mode '%1' for device '%2'."
At a terminal as root, It seems as if I can manually reset the parameter with: hdparm -d1 /dev/hdc
however this does not last to the next reboot.
ideas on how to make this behavior cease?
Put an entry in /etc/sysconfig/ide. The entry will depend on how your HDs and CD/DVD drives are configured and what their DMAs are. As an example to follow, I have the following configuration: /dev/hda is my main HD /dev/hdb is my CD ROM /dev/hdc is my 2nd HD /dev/hdd is my DVD burner So, in /etc/sysconfig/ide I put in the following statement: DEVICES_FORCE_IDE_DMA="/dev/hda:udma5 /dev/hdb:udma2 /dev/hdc:udma5 /dev/hdd:udma4" In order to get the setting for the CD ROM "stick" (and displayed in Control Centre/Hardware/IDE DMA ) I had to put in *all* the drives I have installed - just inserting "/dev/hdb:udam3" for the CDROM, whose DMA could not be set, did not produce the results. All drives had to have their DMAs forced in the line above. Cheers. -- This computer is environment-friendly and is running on OpenSuSE 10.1
Basil Chupin wrote:
Roy F. Cabaniss wrote: [pruned]
In YAST: When I check the ide parameters the current dma mode for the cd is off. If I attempt to reset the DMA for the CDROM to UltraDMA33 I get an error message of:
"An error occured while activating the changes. Cannot set required mode '%1' for device '%2'."
At a terminal as root, It seems as if I can manually reset the parameter with: hdparm -d1 /dev/hdc
however this does not last to the next reboot.
ideas on how to make this behavior cease?
Put an entry in /etc/sysconfig/ide. The entry will depend on how your HDs and CD/DVD drives are configured and what their DMAs are. As an example to follow, I have the following configuration:
/dev/hda is my main HD /dev/hdb is my CD ROM /dev/hdc is my 2nd HD /dev/hdd is my DVD burner
So, in /etc/sysconfig/ide I put in the following statement:
DEVICES_FORCE_IDE_DMA="/dev/hda:udma5 /dev/hdb:udma2 /dev/hdc:udma5 /dev/hdd:udma4"
In order to get the setting for the CD ROM "stick" (and displayed in Control Centre/Hardware/IDE DMA ) I had to put in *all* the drives I have installed - just inserting "/dev/hdb:udam3"
Sorry! this is a typo and should read "udma2" and not "3". Cheers. -- This computer is environment-friendly and is running on OpenSuSE 10.1
participants (3)
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Basil Chupin -
Dylan -
Roy F. Cabaniss