# Getting a CX23885 based DVB-S2 card to work..?

**URL:** https://dietpi.com/forum/t/getting-a-cx23885-based-dvb-s2-card-to-work/15941
**Category:** General Discussion
**Created:** [13 February 2023 18:18 UTC](https://dietpi.com/forum/t/getting-a-cx23885-based-dvb-s2-card-to-work/15941 "2023-02-13T18:18:04Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![akrael](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/a/848f3c/32.png) [@akrael](https://dietpi.com/forum/u/akrael)
#### Post date: [13 February 2023 18:18 UTC](https://dietpi.com/forum/t/getting-a-cx23885-based-dvb-s2-card-to-work/15941/1 "2023-02-13T18:18:05Z")

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Hi there,

i am stuck troubleshooting an issue with a small server, based on older hardware which i recently setup for my father-in-law.  
I had a Hauppauge Starburst2 (which is CX23885 based) laying around, and i though that one might be super to setup a tvheadend installation on an old Intel i3-2130 (z77 based board).

I am using dietpi 8.14.2 on na native PC (x86\_64). I installed tvheadend from the snap store, but its unable to find tuners. I dont succeed in troubleshooting this, so thats why i am posting - hoping to get some help from you guys.  
There is a (german) article in another forum which states that, what i am trying to archive is basically possible but requires some tuning.

[https://forums-gentoo-org.translate.goog/viewtopic-t-1093112-start-0.html?\_x\_tr\_sl=de&\_x\_tr\_tl=en&\_x\_tr\_hl=de&\_x\_tr\_pto=wapp](https://forums-gentoo-org.translate.goog/viewtopic-t-1093112-start-0.html?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp)

This article is referencing to a support article from hauppauge which can be found here:  
[https://www-hauppauge-de.translate.goog/site/support/support\_linux.html?n=FAQ.Linux&\_x\_tr\_sch=http&\_x\_tr\_sl=de&\_x\_tr\_tl=en&\_x\_tr\_hl=de&\_x\_tr\_pto=wapp#tv\_tuner](https://www-hauppauge-de.translate.goog/site/support/support_linux.html?n=FAQ.Linux&_x_tr_sch=http&_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp#tv_tuner)

I completed the installation steps mentioned in that article.  
But i am still unable to find tuners with tvheadend.

Here is the information i got so far:

dmesg says:

> [7.796098] cx23885: cx23885\_dvb\_register() allocating 1 frontend(s)  
> [7.796100] cx23885: cx23885[0]: cx23885 based dvb card  
> [7.796459] cx23885: cx23885\_dvb\_register() dvb\_register failed err = -22  
> [7.796461] cx23885: cx23885\_dev\_setup() Failed to register dvb adapters on VID\_B  
> [7.796464] cx23885: cx23885\_dvb\_register() allocating 1 frontend(s)  
> [7.796465] cx23885: cx23885[0]: cx23885 based dvb card  
> [7.900832] cx23885: cx23885\_dvb\_register() dvb\_register failed err = -22  
> [7.900837] cx23885: cx23885\_dev\_setup() Failed to register dvb on VID\_C

I am able to see the device using lspci:

> 05:00.0 Multimedia video controller [0400]: Conexant Systems, Inc. CX23887/8 PCIe Broadcast Audio and Video Decoder with 3D Comb [14f1:8880] (rev 04)  
> Subsystem: Hauppauge computer works Inc. CX23887/8 PCIe Broadcast Audio and Video Decoder with 3D Comb [0070:f02a]  
> Flags: bus master, fast devsel, latency 0, IRQ 19  
> Memory at fe400000 (64-bit, non-prefetchable) [size=2M]  
> Capabilities: [40] Express Endpoint, MSI 00  
> Capabilities: [80] Power Management version 3  
> Capabilities: [90] Vital Product Data  
> Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+  
> Capabilities: [100] Advanced Error Reporting  
> Capabilities: [200] Virtual Channel  
> Kernel driver in use: cx23885  
> Kernel modules: cx23885

I got the following lines from my syslog:

> Feb 13 18:58:43 zeitgeist kernel: [6.519102] cx23885: cx23885 driver version 0.0.4 loaded  
> Feb 13 18:58:43 zeitgeist kernel: [6.519199] cx23885: CORE cx23885[0]: subsystem: 0070:f02a, board: Hauppauge WinTV-HVR5525 [card=52,insmod option]  
> Feb 13 18:58:43 zeitgeist kernel: [6.873076] cx23885: cx23885[0]: warning: unknown hauppauge model #150300  
> Feb 13 18:58:43 zeitgeist kernel: [6.873076] cx23885: cx23885[0]: hauppauge eeprom: model=150300  
> Feb 13 18:58:43 zeitgeist kernel: [6.955489] cx25840 10-0044: cx23888 A/V decoder found @ 0x88 (cx23885[0])  
> Feb 13 18:58:43 zeitgeist kernel: [7.086152] cx25840 10-0044: firmware: direct-loading firmware v4l-cx23885-avcore-01.fw  
> Feb 13 18:58:43 zeitgeist kernel: [7.715282] cx25840 10-0044: loaded v4l-cx23885-avcore-01.fw firmware (16382 bytes)  
> Feb 13 18:58:43 zeitgeist kernel: [7.795939] cx23885: cx23885[0]: registered device video0 [v4l2]  
> Feb 13 18:58:43 zeitgeist kernel: [7.795995] cx23885: cx23885[0]: registered device vbi0  
> Feb 13 18:58:43 zeitgeist kernel: [7.796098] cx23885: cx23885\_dvb\_register() allocating 1 frontend(s)  
> Feb 13 18:58:43 zeitgeist kernel: [7.796100] cx23885: cx23885[0]: cx23885 based dvb card  
> Feb 13 18:58:43 zeitgeist kernel: [7.796464] cx23885: cx23885\_dvb\_register() allocating 1 frontend(s)  
> Feb 13 18:58:43 zeitgeist kernel: [7.796465] cx23885: cx23885[0]: cx23885 based dvb card  
> Feb 13 18:58:43 zeitgeist kernel: [7.900842] cx23885: cx23885\_dev\_checkrevision() Hardware revision = 0xd0  
> Feb 13 18:58:43 zeitgeist kernel: [7.900847] cx23885: cx23885[0]/0: found at 0000:05:00.0, rev: 4, irq: 19, latency: 0, mmio: 0xfe400000

As far as i get it, all the neccessary kernel modules are already loaded:

(from my config-5.10.0.21-amd64):

> CONFIG\_VIDEO\_CX23885=m  
> CONFIG\_MEDIA\_ATTACH=y  
> (for example - as far as i can see all the required modules are loaded by default - because i never changed/touched this)

Any help / suggestions are appreciated…