Change Cardbus IRQ on T60?

[Kilgore_Trout]

Hi,


I have recently bought an E-mu 02 Cardbus soundcard, and after I installed it, it worked, but I hear glitches and dropouts no matter how do I raise the buffer size.
I think this is becase the cardbus driver is on IRQ 16, which is already occupied by many other devices (chipset controller, network controller, sata controller and USB unviersal host controller), and the soundcard cant get enough resources from the computer to work normally.
So my question is, how could I change the IRQ of the E-mu card from 16 to an unused irq?

Thanks,

Daniel
(My config is Thinpad T60 1952VLU)

[kevinshields]

Hi

I write this mostly in sympathy, I have struggled with the same issue now night and day for the last.. idunnohowmany-hours. Well. Let's summarize what does _not_ work (I have an excellent e-mu1616m pcmcia connected card which _should_ run more or less at 0ms latency. I can hardly run it at 75ms which means it's more or less worthless to me as long as the T60 insists on putting everything, and I do mean _everything_ on irq 16 on a normally installed XP pro running the ACPI monstrum)

-the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl add DWORD IRQ#Priority-hack. does absolutely nothing, can't image it ever has

-re-installing windows XP in "standard PC mode" to get rid of the auto-evolness of ACPI-irq-clustering, described here for instance http://www.tweakxp.com/article36995.aspx - it's refreshing in the fact that for te first time, something _will_ actually change! however, to your disapointment you shall notice you did all this just to get everything on irq 11 instead. great. and, again, there is of course absolutely no way to change the IRQs inside XP

-using some strange thinkvantage tool to try and re-assign IRQs. can't remember the name of this app, configiration utility maybe or something like this. it gives the impression you could change IRQs. don't bother, in its help section it will say that it "maybe doesn't work on some devices". I would be extremely surprised if it worked for any device on my T60.. just forget it

-disabling the com ports in the bio making them "disappear" as some nifty hinters describe it to "shuffle around" the IRQ assignments. first av all, no device will "disappear" in my XP whatever the bios says. secondly, the IRQ table will stay rigid. "shuffle around".. dunno what these people are on about, does not work on the T60 anyway

So  - I'm actually more fond of my studio setup than my laptop at this point, the T60 will simply have to go (or any other laptop running windows for that matter) - it's just.. ridicule? Anyone, anyone actually done anything that actually work? Ever? Really?

[Kilgore_Trout]

Well, later I found out the solution by e-mailing a random guy who had the same config (t60+02 cardbus).

Simply disable the Ethernet Controller in the Device Manager. (Or in the thinkpad utility, I dont remember since I already sold the soundcard about a year ago - which I deeply regret, but that is another story...)

It worked for me (3-5 ms latency without dropouts), I hope it works for you too.

It is interesting, that the solution is such easy yet it cant be found anywhere on the internet.

[kevinshields]

.. it worked! After weeks of trying everything (if i didn't have Acronis True Image Home I would have given up long before this - I highly recommend this piece of backup software). Anyway, if you do what Kilgore_Trout suggests it really seems to work - open up your device manager and disable the

Intel(R) PRO/1000 PL Network Connection

device and all of a sudden your soundcard starts working; I can run my emu 1616m at 5ms latency, no problem whatsoever! You're probably mostly running on your wireless eth adapter anyway.

Thanks so much for this advice!