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K3b [solved]


oldnoob
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I am having slow writing speeds for dvd's in k3b, 2 speed.

In the dialogue as it starts writing, it says start writing at 8 speed which is what the discs and drive support, but down the bottom where it says estimated writing speed, it only gets up to 2x,andit takes ages for the discs to write. CD's only achieve 10x but the discs and writer are capable of 48x. This only happens in mdv2007, in 2006 i achieve the correct speeds or very close to it. I cant see any difference in settings of k3b between the two, although 2006 uses k3b 0.12.4 and 2007 uses 0.12.17.

hdparm returns:

 

IO_support = 0 (default 16-bit)

unmaskirq = 0 (off)

using_dma = 1 (on)

keepsettings = 0 (off)

readonly = 0 (off)

readahead = 256 (on)

HDIO_GETGEO failed: Inappropriate ioctl for device

 

Does anyone have any ideas?

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Don't know if this will help, but it works fine on my box:

 

 

$ /sbin/hdparm /dev/cdrom

 

/dev/cdrom:

IO_support = 1 (32-bit)

unmaskirq = 1 (on)

using_dma = 1 (on)

keepsettings = 0 (off)

readonly = 0 (off)

readahead = 256 (on)

HDIO_GETGEO failed: Inappropriate ioctl for device

 

I've not set any of this myself, but it could have been some magic in the k3b setup.

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This only happens in mdv2007, in 2006 i achieve the correct speeds or very close to it.

If it's still not writing at the speed you want, check the options in K3b.

 

Open K3b, go to:

 

Settings> Configure K3b> Devices> click on 'Max write speed' (the number) and change it to the desired speed... that your burner and media will handle

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Thanks again scarecrow.

That got the speed up. But I dont quite understand, cause as you can see from my original post hdparm /dev/dvd shows that dma was already on?

 

That is because the nodes /dev/dvd, /dev/cdrom and /dev/hdd (for instance) have all to be configured, even if they point to the same hardware device...

hdparm has quite a few quirks, especially with software RAID arrays. Here's a good wiki which more or less applies for any distro:

http://gentoo-wiki.com/HOWTO_Use_hdparm_to...ice_performance

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there are new k3b versions at MDE:

 

]$ ls *k3b*

k3b-1.0-0.rc2.2.mdv2007.0.mde.i586.rpm

k3b-1.0-0.svn615773.1.mdv2007.0.mde.i586.rpm

k3b-dvd-1.0-0.rc2.2.mdv2007.0.mde.i586.rpm

k3b-dvd-1.0-0.svn615773.1.mdv2007.0.mde.i586.rpm

libk3b2-1.0-0.rc2.2.mdv2007.0.mde.i586.rpm

libk3b2-1.0-0.svn615773.1.mdv2007.0.mde.i586.rpm

libk3b2-devel-1.0-0.rc2.2.mdv2007.0.mde.i586.rpm

libk3b2-devel-1.0-0.svn615773.1.mdv2007.0.mde.i586.rpm

 

This of course for arch x86 but theres also k3b rpms for x86_64 respectively

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