Re: [Alsa-user] XStation 25 does not work in duplex mode with Alsa
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From: Bharat R. <me...@gm...> - 2011-11-02 23:24:56
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Hi, Patch works brilliantly. I built a custom kernel on ubuntu 11.10 based on the latest lowlatency kernel config from the ppa and the Xstation now works in duplex :). Hope this makes it to a mainstream build soon. Still have the problems with alsamixer...but skype works with it over the pulseaudio-jack module, so am not too fussed.. Will be testing it more thoroughly with ardour/jackd over the weekend. Thanks a lot Clemens. regards, Bharat On Wed, Nov 2, 2011 at 8:48 PM, Bharat Rajagopalan <me...@gm...>wrote: > Hi Clemens, > > Thanks for the tip. Will look into the patch! > > This is a laptop so all the ports sit on top of an internal hub which has > two main usb ports ..so its not possible to connect it directly..it has to > go through the hub. > > I was also wondering, if the problem is with the EHCI driver, why does > the zoom g9 (also a usb 1 device) work properly in duplex mode? I was just > looking at the dmesg output and cant see anything significantly different. > > regards, > Bharat > > Xstation dmesg output (copied from pastebin) > > 1. [ 4180.097600] usb 2-1.3: new full speed USB device number 5 using > ehci_hcd > 2. [ 4180.202969] input: Novation DMS XStation as > /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.5/input/input12 > 3. [ 4180.203267] generic-usb 0003:1235:0006.0002: input,hidraw1: USB > HID v1.00 Device [Novation DMS XStation] on usb-0000:00:1d.0-1.3/input5 > 4. [ 4180.299862] usbcore: registered new interface driver > snd-usb-audiozoo > > > Zoom dmesg output > > > 1. [ 1407.691982] usb 2-1.3: new full speed USB device number 4 using > ehci_hcd > 2. [ 1407.773008] input: Burr-Brown from TI USB Audio > CODEC as > /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3:1.3/input/input12 > 3. [ 1407.773331] generic-usb 0003:08BB:2904.0002: input,hidraw1: USB > HID v1.00 Device [Burr-Brown from TI USB Audio CODEC ] on > usb-0000:00:1d.0-1.3/input3 > 4. [ 1407.863809] usbcore: registered new interface driver > snd-usb-audio > > > On Tue, Nov 1, 2011 at 8:49 AM, Clemens Ladisch <cla...@go...>wrote: > >> Bharat Rajagopalan wrote: >> > I have an old Novation X-Station 25 ... >> > It just refuses to work in duplex mode. >> >> This is a known bug in the EHCI driver. If your chipset also has OHCI >> ("Open") or UHCI ("Universal") controllers, try connecting the device >> directly to the PC without a hub. >> >> There's a recent patch that works around the most common instances of >> this bug; it's likely to help you: >> http://marc.info/?l=linux-usb&m=131973404328622 >> >> >> Regards, >> Clemens >> > > |