Trying to imrpove the function of my dvd drive I tried to switch on dma via hdparm.

This works fine from the command line.

I then trie dto make this change permanent by altering /etc/hdparm.conf, but did not get anywhere. The comment section suggested four different ways of using hdparm.conf, setting defaults, settings for people with devfs, setting directly for the devices and finally with a commandline integrated into hdparm.conf.

While the individual settings worked fine set from the commandline, nothing at all ever happened when introducing these settings via any of the four described ways into hdparm.conf.

There is a hdparm script in init.d, which calls hdparm.conf at boot.

One solution obviously would be to put a script into my own startup routines e.g in gnome startup, but this appears to be a bit of a botch job.

Any ideas?

Thanks!

Well since the proper config file is not working for you try editing the file /etc/init.d/bootmisc.sh and near the bottom just before the : exit 0 put your hdparm command there and see if it helps.

Hi,

Do you suggest putting the command
where you suggested in the file /etc/init.d/bootmisc.sh
to enable dma=on at boot time ?

I have the exact same problem and must run the command
at each reboot.

thanks

Well if using.

In the /etc/hdparm.conf near the bottom does not work for you then it is worth a try.

No this does actually not work.

hdparm works fine if called on the commandline, but the /etc/init.d/hdparm script does not seem to parse /etc/hdparm.conf

I have enclosed a variety of different commands into /etc/hdparm.conf and run "sudo /etc/init.d/hdparm restart" over and again, but with absolutely no difference made.

I have used the defaults option, I set direct commandlines, I have done everything.

I then put an echo into /etc/init.d/hdparm at various places where I knew I would not cause harm but could not elucidate the problem. Unfortunatley I do not understand code enough to read and understand /etc/init.d/hdparm really... But I do think teh problem must be in that file.

This does work - add - hdparm -d1 /dev/hdc to /etc/init.d/bootmisc.sh?