969 replies to this topic

[leeanimated]

Hi Guys

After upgrading my system to 24 gigs of RAM, the driver was no longer able to allocate buffers below 256MB. This is a problem I know many people have faced in the past, but I've always been lucky even though my system had 12 gigs. I was gutted as last weekend I did a lot of work on the driver to get it to work in 96khz mode on my Delta 1010 (which uses an older chipset than the driver expects).

Anyway, I've found a solution that works for me in the form of the following boot flag:

himemory_mode = 2

This basically tells the kernel to prefer allocating high memory, thus leaving enough low memory free for the driver.

You can enter this boot flag at the chameleon boot prompt, or you can add it to the kernel flags of your com.apple.Boot.plist (or org.chameleon.boot.plist) file.

Hope this helps somebody

Cheers

Lee

[eldavo]

I had exactly this issue after putting 24 Gb RAM on the Gigabyte EX58 UD5 board, and the M-Audio 44. Adding himemory_mode=2 to the kernel flag in /Extra/com.apple.Boot.plist fixed the issue (sudden lockups - I thought the issue was a bad RAM stick until I booted with the -v flag and saw the audio IO related kernel panic message on the screen).

thank you for posting this!

leeanimated, on 18 February 2012 - 11:02 AM, said:

Hi Guys

After upgrading my system to 24 gigs of RAM, the driver was no longer able to allocate buffers below 256MB. This is a problem I know many people have faced in the past, but I've always been lucky even though my system had 12 gigs. I was gutted as last weekend I did a lot of work on the driver to get it to work in 96khz mode on my Delta 1010 (which uses an older chipset than the driver expects).

Anyway, I've found a solution that works for me in the form of the following boot flag:

himemory_mode = 2

This basically tells the kernel to prefer allocating high memory, thus leaving enough low memory free for the driver.

You can enter this boot flag at the chameleon boot prompt, or you can add it to the kernel flags of your com.apple.Boot.plist (or org.chameleon.boot.plist) file.

Hope this helps somebody

Cheers

Lee

[BALDY_MAN]

worked for me. with Delta Audiophile 2496.
using 32 gig of ram in my system

[BALDY_MAN]

put in  boot plist.
himemory_mode=2
in kernel flags

[DanHot]

Is anyone able to direct me to a download for the Envy24_SL.0.22.dmg kext. The original site http://www.audio-evo...on.com/drivers/ doesn't seem to have the links active anymore. I'm running SL on an AMD machine.

thanks!

I've just found Envy24_SL.0.20.dmg so if it works i should be ok.

[Bandes]

So, the driver is opensourced, and if i can find Linux ALSA driver sources for my ESI Maya 44 PCI sound card, then theoretically i could merge it into the driver and make it work (?)

[Tobyl5]

BUMP! I could do with this driver as well if anybody has a valid link. thanks all.

[Bandes]

well, i have these links for now:

http://wiki.linuxmus...=esi_maya44_pci
http://www.alsa-proj...trix:Vendor-ESI
http://ubuntuforums....ad.php?t=868227

https://github.com/f...t/Envy24HT/tree

might be something missing (?)
alsa driver is also on git.

Tobyl5, on 25 March 2013 - 10:57 AM, said:

BUMP! I could do with this driver as well if anybody has a valid link. thanks all.

[audiodriverwriter]

I have fixed the links

[Crazor]

Any news on the Envy24 front? I mirrored the sources to GitHub, but haven't had a chance to look at them yet.

I'm using the Delta 1010LT on 10.6.4 as my recording workstation and I'm running into issues which I haven't been able to pinpoint. Sometimes the system locks up, sometimes it just won't boot. Since I'm running with 2GB RAM only, i guess the himemory_mode flag doesn't apply here?