I cant burn DVDR's faster than 1.30x or something like that. cdrecord says:
cdrecord: DMA speed too slow (OK for 9x). Cannot write at speed 16x.
hdparm says:
/dev/cdwriter: IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 16 (on)
I dont understand why it is like this. DMA, 32-bit is on. Its using a Promise TX2 UDMA/133 card. Should be enough. LG GSA-4120B is the burner model.
ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:DMA ide2: BM-DMA at 0xdf60-0xdf67, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0xdf68-0xdf6f, BIOS settings: hdg:pio, hdh:pio hda: 240121728 s (122942 MB) w/2048KiB Cache, CHS=65535/16/63,UDMA(100) hdb: 240121728 s (122942 MB) w/2048KiB Cache, CHS=65535/16/63,UDMA(100) hdc: 240121728 s (122942 MB) w/2048KiB Cache, CHS=65535/16/63,UDMA(33) hdd: 240121728 s (122942 MB) w/2048KiB Cache, CHS=65535/16/63,UDMA(33) hdf: 320173056 s (163928 MB) w/2048KiB Cache, CHS=19929/255/63,UDMA(133) hdg: 398297088 s (203928 MB) w/7936KiB Cache, CHS=24792/255/63,UDMA(133)
The burner is on hde. I use FC4 (2.6.10-1.770_FC3smp). Anyone got a idea?
On Sat, 6 Aug 2005, Peter Magnusson wrote:
I cant burn DVDR's faster than 1.30x or something like that. cdrecord says:
cdrecord: DMA speed too slow (OK for 9x). Cannot write at speed 16x.
hdparm says:
/dev/cdwriter: IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 16 (on)
I dont understand why it is like this. DMA, 32-bit is on. Its using a Promise TX2 UDMA/133 card. Should be enough. LG GSA-4120B is the burner model.
Are you using an ide cable rated for 133?
Peter Magnusson wrote:
I cant burn DVDR's faster than 1.30x or something like that. cdrecord says: cdrecord: DMA speed too slow (OK for 9x). Cannot write at speed 16x.
I dont understand why it is like this. DMA, 32-bit is on. Its using a Promise TX2 UDMA/133 card. Should be enough. LG GSA-4120B is the burner model.
alan wrote:
Are you using an ide cable rated for 133?
Um. Sounds like a red herring to me. The drive only supports 33 MB/s.
The manual, which can be found at http://us.lgservice.com/jsp/common/download.jsp?DOC_ID=KROWM000058431&FI... (phew) says (page 10):
Performance: Data transfer rate *Sustained CD-ROM : 6000 Kbytes/s (40X max) DVD-ROM : 22160 Kbytes/s (16X max) *Burst(ATAPI) 16.6 Mbytes/s (PIO Mode 4), (MULTI-DMA Mode 2) 33.3 Mbytes/s (Ultra-DMA Mode 2)
So 33 MB/s is all you're going to get out of the drive interface. And this is enough for 16x DVD.
Hope this helps,
James.