HD-PVR Problems 10.04 (not making /dev/videoX)

**Jynxter** · October 7th, 2010

So Box history.
Started as a Mythbuntu 8.04 box, and have upgraded it to where it is now, 10.04.

Code:

uname -a 
Linux matxmyth 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 0:26:08 UTC 2010 i686 GNU/Linux

Have HD Homerun recording with no problems to the box for 2 years now. Purchased a HD-PVR, and have encountered problems getting it to work. Installed it in windows, did the driver/firmware update from the support page. Made sure it works in windows for my sanity test.

However in mythbuntu, it just doesn't work. if I modprobe the driver, it loads, but never makes a /dev/videoX device.

When I do modprobe the driver I get this:

Code:

Oct  7 00:17:31 matxmyth kernel: [  230.201682] usbcore: registered new interface driver hdpvr

and nothing after that.
lsusb:

Code:

lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 046d:c512 Logitech, Inc. LX-700 Cordless Desktop Receiver
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2040:4903 Hauppauge
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I've downloaded and recompilied v4l-dvb modules to no avail. I've tried different USB ports, power cycling the hd-pvr, rebooting, and just nothing seems to work. I don't see anything in dmesg, /var/log/messages,syslog,kernel that gives me any idea about what the problem is.

the Hauppage_HD_PVR is listed in /var/log/udev if that matters.

I'm not sure why its not working, and could use any assistance is determining whats going on.

Thanks!

**LowSky** · October 7th, 2010

Hmmm odd issue.

Bus 001 Device 002: ID 2040:4903 Hauppauge
thats the device.

run this command to make sure the driver is installed

Code:

locate cx88-dvb.ko |grep `uname -r`

try a test using

cat /dev/video1 > test.ts
just give it a try once If it works reboot and startinstalling it in Myth

Otherwise go back to the windows machine and reinstall the drivers once again.

**Jynxter** · October 7th, 2010

found the correct cx88 file. Reloaded the driver (HcwDriverInstall.exe) in windows
Here is the message log when I power cycle the hd-pvr while its connected

Code:

Oct  7 12:49:11 matxmyth kernel: [  124.448985] usb 1-4: USB disconnect, address 3
Oct  7 12:49:17 matxmyth kernel: [  130.640044] usb 4-1: new full speed USB device using ohci_hcd and address 2
Oct  7 12:49:18 matxmyth kernel: [  131.264031] usb 4-1: new full speed USB device using ohci_hcd and address 3
Oct  7 12:49:20 matxmyth kernel: [  133.792044] usb 1-4: new high speed USB device using ehci_hcd and address 5
Oct  7 12:49:20 matxmyth kernel: [  133.952443] usb 1-4: configuration #1 chosen from 1 choice
Oct  7 12:51:03 matxmyth kernel: [  236.915304] usbcore: registered new interface driver hdpvr

on bootup, the hdpvr module is not being loaded. The Last line shows up after I modprobe hdpvr. Nothing goes after that.

there is no /dev/video0 or /dev/video1 to capture from. Just gives me a no such file/directory.

Originally Posted by LowSky

Hmmm odd issue.

Bus 001 Device 002: ID 2040:4903 Hauppauge
thats the device.

run this command to make sure the driver is installed

Code:

locate cx88-dvb.ko |grep `uname -r`

try a test using

cat /dev/video1 > test.ts
just give it a try once If it works reboot and startinstalling it in Myth

Otherwise go back to the windows machine and reinstall the drivers once again.

**LowSky** · October 7th, 2010

run this command

Code:

dmesg | grep hdpvr

you should see something similar to this.

Code:

john@jpc-desktop:~$  dmesg | grep hdpvr
[    5.657199] hdpvr 1-5:1.0: untested firmware version 0x15, the driver might not work
[    5.970462] hdpvr 1-5:1.0: device now attached to video0
[    5.970496] usbcore: registered new interface driver hdpvr

if not the device isn't loading correctly.

**LowSky** · October 7th, 2010

ok I might have found something
http://forums.gentoo.org/viewtopic-t...d491f346979bb3
http://mythtv.org/pipermail/mythtv-u...ry/281462.html

what is the output of

Code:

modinfo hdpvr

if it comes up empty you might need to edit the hdpvr driver to include your model

you might have to modify the driver to add your model of the hdpvr so it works
look for

Code:

like in this

Code:

alias:          usb:v2040p4903d*dc*dsc*dp*ic*isc*ip*

if you dont see it you will have to modify the driver.
I noticed my version of the driver doesn't use it. but i'm using the Ubuntu kernel driver and not the v4l driver

Your model might be so new its not included in the kernel yet. sorry to break the news to you. but a simple modification could fix it.

**Jynxter** · October 7th, 2010

Code:

dmesg | grep hdpvr
[  236.915304] usbcore: registered new interface driver hdpvr

Hmm, heres modinfo and lsusb again

Code:

paul@matxmyth:/var/cache/apt/archives$ dmesg | grep hdpvr
[  236.915304] usbcore: registered new interface driver hdpvr
paul@matxmyth:/var/cache/apt/archives$ modinfo hdpvr
filename:       /lib/modules/2.6.32-25-generic/kernel/drivers/media/video/hdpvr/hdpvr.ko
description:    Hauppauge HD PVR driver
author:         Janne Grunau
license:        GPL
srcversion:     B42A1796FAC59BB0C93FE94
alias:          usb:v2040p4982d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v2040p4902d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v2040p4901d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v2040p4900d*dc*dsc*dp*ic*isc*ip*
depends:        videodev,v4l2-common
vermagic:       2.6.32-25-generic SMP mod_unload modversions 586
parm:           video_nr:video device number (-1=Auto) (array of int)
parm:           hdpvr_debug:enable debugging output (int)
parm:           default_video_input:default video input: 0=Component / 1=S-Video / 2=Composite (uint)
parm:           default_audio_input:default audio input: 0=RCA back / 1=RCA front / 2=S/PDIF (uint)
parm:           boost_audio:boost the audio signal (bool)
paul@matxmyth:/var/cache/apt/archives$ lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 046d:c512 Logitech, Inc. LX-700 Cordless Desktop Receiver
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 2040:4903 Hauppauge
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Looks like I have 4903 and the driver only has 4902

Great find there!!

Thats a huge point in the right direction thats for sure.

So I need to modify the v4l-dvb driver and add in another alias, then recompile I take it.

**Jynxter** · October 7th, 2010

I found the alises in the hdpvr-mod.c file. Added 4903 and am recompiling.
I'll let you know how it goes...

**Jynxter** · October 7th, 2010

Have to modify these two files to add a new Model Device to the code.

./v4l-dvb/linux/drivers/media/video/hdpvr/hdpvr.h
I added ID4

Code:

/* Define these values to match your devices */
#define HD_PVR_VENDOR_ID        0x2040
#define HD_PVR_PRODUCT_ID       0x4900
#define HD_PVR_PRODUCT_ID1      0x4901
#define HD_PVR_PRODUCT_ID2      0x4902
#define HD_PVR_PRODUCT_ID3      0x4982
#define HD_PVR_PRODUCT_ID4      0x4903

./v4l-dvb/linux/drivers/media/video/hdpvr/hdpvr-core.c
Added ID4 here too.

Code:

/* table of devices that work with this driver */
static struct usb_device_id hdpvr_table[] = {
        { USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID) },
        { USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID1) },
        { USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID2) },
        { USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID3) },
        { USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID4) },
        { }                                     /* Terminating entry */
};

make clean
sudo make install
sudo reboot

dmesg | grep hdpvr:

Code:

paul@matxmyth:~$ dmesg | grep hdpvr
[   12.788568] hdpvr 1-4:1.0: untested firmware version 0x15, the driver might not work
[   13.100908] hdpvr 1-4:1.0: device now attached to video0
[   13.100937] usbcore: registered new interface driver hdpvr

Now to wait an hour to get home to start testing it out..

**Jynxter** · October 8th, 2010

After the recompile, everything is working in myth!

Lowsky, thanks for your help, that was an awesome find, and one more thing to add to the list of troubleshooting for myself with linux hardware.

**LowSky** · October 8th, 2010

Your welcome Jynxter, it was really an important find. I'm betting this might effect many new users if the driver is not properly updated in the kernel.

It also reminded me I should update my HDPVR's firmware.