[Bug 31709] Re: K3b slow dvd burn speed
Dimitris Kalamaras
dimitris.kalamaras at gmail.com
Wed Oct 1 14:38:15 UTC 2008
Ι confirm and reckon a very very old bug. In my case, it appeared some one year ago with both of my DVD-RW devices. They are the same LG model HL-DT-ST DVDRAM GSA-4167B.
This is the output of /sbin/hdparm -i:
Model=HL-DT-ST DVDRAM GSA-4167B , FwRev=DL12 , SerialNo=25C5C279C2B5
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no
Drive conforms to: Unspecified: ATA/ATAPI-2,3,4,5
Problem description is very simple. Burning speed for CDs or DVDs does not meet (any more) the capabilities of this device, when using on-the-fly mode of K3b.
Furthermore, during CD/DVD burning, the desktop at large seems to lag behind. I mean, CPU load is peeking and mouse stops moving periodically (only for a moment). In the end, CDs/DVDs are OK, but this is a torture (and a time-consuming effort).
The problem manifests in Ubuntu 7.10, 8.04, Debian as well as Fedora 8 and 9. So it is not distro specific.
Also, I am not sure that this is necessarily a K3B specific, since Gnome CD/DVD Creator or Brasero are not burning on the fly. Even then, it takes 7 minutes for a CD 700MB burn and mouse lags are there (but not so frequent or heavy as in K3b)
The CPU is AMD Athlon(tm) 64 Processor 3700+.
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K3b slow dvd burn speed
https://bugs.launchpad.net/bugs/31709
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