DMA is enabled, disc access does slow down the computer noticeably though. This is the reason why I started to look whether DMA was enabled.
Do you have anything else I could try to get back the original performance? [ 53.018256] libata version 2.00 loaded. [ 53.022606] pata_via 0000:00:11.1: version 0.2.0 [ 53.023078] ACPI: PCI Interrupt Link [ALKA] BIOS reported IRQ 0, using IRQ 20 [ 53.023083] ACPI: PCI Interrupt Link [ALKA] enabled at IRQ 20 [ 53.023093] ACPI: PCI Interrupt 0000:00:11.1[A] -> Link [ALKA] -> GSI 20 (level, low) [ 53.023166] ata1: PATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xE400 irq 14 [ 53.023217] ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xE408 irq 15 [ 53.023248] scsi1 : pata_via [ 53.239025] scsi 0:0:5:0: CD-ROM TEAC CD-R58S 1.0H PQ: 0 ANSI [ 53.239058] target0:0:5: Beginning Domain Validation [ 53.247569] ata1.00: ATA-6, max UDMA/100, 390719855 sectors: LBA48 [ 53.247573] ata1.00: ata1: dev 0 multi count 16 [ 53.255264] target0:0:5: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 15) [ 53.265984] target0:0:5: Domain Validation skipping write tests [ 53.265987] target0:0:5: Ending Domain Validation [ 53.269738] ata1.00: configured for UDMA/100 -- hdparm is busted in the hd? -> sd? change https://launchpad.net/bugs/73889 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs