FAQ & Troubleshooting: Difference between revisions
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= FAQ = |
= FAQ = |
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==General== |
==General== |
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===What |
===What device do I exactly have ? === |
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To the casual observer this question might seem ridiculous, but in reality, the answer isn't always as clear as it might appear on the surface of things; for help identifying your device, [[Supported Hardware#Gathering Information About Your Unidentified/Unsupported Device|see here]]. |
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Good question - those companies often just don't tell it exactly... The easiest is to do stick the card into your PC and then do |
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lspci -v |
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===How many devices are supported in a system?=== |
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or |
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In respect to DVB devices, see [http://marc.info/?l=linux-dvb&m=120214129911811&w=2 this thread]. |
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lsusb -v |
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In respect to analog devices, see [http://marc.info/?l=linux-video&m=119955906907915&w=2 this thread]. |
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Look for multimedia adapters, multimedia video controller, multimedia controller or something similar. |
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===Where do I get a driver from?=== |
===Where do I get a driver from?=== |
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Revision as of 17:05, 4 February 2008
FAQ
General
What device do I exactly have ?
To the casual observer this question might seem ridiculous, but in reality, the answer isn't always as clear as it might appear on the surface of things; for help identifying your device, see here.
How many devices are supported in a system?
In respect to DVB devices, see this thread. In respect to analog devices, see this thread.
Where do I get a driver from?
Write down the name in lspci and search for it here or google for it. There are many cards out, but most of them use the same chipset so you're pretty likely to get it running under Linux.
I have the DVB drivers loaded. Now how can I test it?
Check if you have files in /dev/dvb/adapter0/. Then, see the steps in Testing your DVB device.
How do I tune my TV-channels? Where do I get the frequencies from?
Try the scan command as described above or on the page of its package LinuxTV dvb-apps.
Troubleshooting
- Under Ubuntu (I assume that this also applies to other linux systems), make sure that the user is in the video group in /etc/group.
Any software I use comes up with error messages like "can't find demux".
This means that /dev/dvb/adapter0/demux is missing. Probably your card drivers are not installed properly. Then, you don't have anything in /dev/dvb/. If that's the case, make sure above that you have all in your kernel config (of your running kernel, of course) and that you loaded them all with modprobe.
My device was working perfectly, but now it is not recognized anymore. What is the problem?
It's possible that you're using a different kernel now, so you have to install the driver again and ensure that the firmware is reached by the hotplug system.
My DVB device is recognized but I'm not able to use it. What can I do?
You should check that the /dev/dvb exists and that you have the correct permissions to read and write that directory.
You might also try some of the steps in Testing your DVB device to see if other software can cope with it.
For further please contact developers via irc.freenode.net on #linuxtv (or #dvb) or via mailing list.