DSDT

Differentiated System Description Table (DSDT) - DSDT is a part of the ACPI specification and it supplies configuration information about a base system. ACPI capable computers come with a preinstalled DSDT from the manufacturer. A common Linux/OS X problem is missing ACPI functionality (fans not running, laptop screens not shutting off, etc.)

This subforum is dedicated to patches/fixes able to be inserted/modified from an extracted dsdt.dsl, which is then compiled into a DSDT.aml for OS X to pick up and use (with a proper bootloader).

These fixes are not permanent, and do not damage your BIOS.

Is It Possible That Harddrive Writing Can Disturb Usb Flow?

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funkyfrank

Feb 23 2012, 07:40 PM

Post #1

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Hi,

I have the following problem: My external midi tone generator that is connected over usb sometimes produces timing glitches. This happens always if the audio software is writing the song result to disk. To be exactly the stuttering appears just in the moment the harddrive lamp is flashing.

Could it be that there is something wrong with some kind of irq sharing? That the usb controller shares a irq with the harddisk controller or something?

Anyone seen this problem before?

Thanks for help. I hope Slice will answer with his wisdom.

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