[AG-TECH] ubuntu 9.10 + AG 3.2 beta

Christoph Willing c.willing at uq.edu.au
Thu Nov 19 17:06:10 CST 2009


On 20/11/2009, at 6:20 AM, Porfirio Gaona wrote:

> Hello,
>
> These are my final results.
>
> Ubunto 9.10 + AG 3.2 beta is working on my video PC.
>
> 1.- I tested without Hauppage capture video cards.  I installed one  
> by one and the system recognized them.
>
> 2.- I just add my user to video group. The change on permissions on / 
> dev/video0 and /dev/video1 were not necessary.


Thanks for the feedback Porfirio,

I'll add something about this on the installation page for AG on karmic.


chris


> NOTE:
>
> 15.004686] IRQ 21/bttv0: IRQF_DISABLED is not guaranteed on shared  
> IRQs
> 15.294241] IRQ 22/bttv1: IRQF_DISABLED is not guaranteed on shared  
> IRQs
>
> These messages are showed with dmesg command but the capture video  
> cards are working very well.
>
>
> Thanks for all to all that gave me hints to solve my problem.
>
> Now, I'm testing stability on this box
>
>
> Porfirio Gaona
> UNAM-Mexico
>
> On Nov 19, 2009, at 5:51 AM, Christoph Willing wrote:
>
>>
>> On 19/11/2009, at 10:03 AM, Porfirio Gaona wrote:
>>
>>> Hello,
>>>
>>> Yes, I have some actions to do.
>>>
>>> 1.- I have to connect just 1 capture card (preferable on a  
>>> different slot).
>>
>>
>> Porfirio,
>>
>> I've just noticed that I also have the "IRQF_DISABLED is not  
>> guaranteed on shared IRQs" message on at least one of our machines.  
>> yet the vic video works fine i.e. you may not have a hardware  
>> problem at all.
>>
>> That definitely makes Andrew's suggestion about a permissions  
>> problem something to consider.
>>
>>
>>> 2.- Change permissions under /dev/video* (thanks Andrew Leahy).    
>>> My username is on administrator group (I can make "sudo"  
>>> commands), but it can be a reason to no detect my capture cards on  
>>> my AG 3.2 beta.
>>
>>
>> Any user should be able to access the /dev/video* devices provided  
>> they are a member of /dev/video*'s group - thats usually the  
>> "video" group. You can check whether you are a member of the group  
>> by running the command:
>>   groups
>> which will return a list of the groups the current user is a member  
>> of. If you are not a member of the video group, add yourself to it  
>> in the /etc/group file. After any changes to this file, you may  
>> need to log in again for the changes to have an effect (at least on  
>> the "groups" command).
>>
>>
>> chris
>>
>>
>>> 3.- I will test with another apps related with my capture video  
>>> cardes (Hauppauge based on BT878 chipset).
>>>
>>> Thanks to all, I'll write my results.
>>>
>>> Porfirio Gaona
>>>
>>> On Nov 18, 2009, at 2:59 PM, Christoph Willing wrote:
>>>
>>>>
>>>> On 19/11/2009, at 5:36 AM, Porfirio Gaona wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I'm upgrading video machine from Fedora to Ubuntu 9.10(Ubuntu  
>>>>> Karmic).  I read from   http://www.vislab.uq.edu.au/research/accessgrid/software/debian/karmic.html 
>>>>>   that AG3.2 beta is practically "stable".
>>>>>
>>>>> On this video machine, I have 2 Hauppauge capture video cards  
>>>>> based on BT878 Chipset.
>>>>>
>>>>> I made a dmsg command and I put on bold font the messages that I  
>>>>> consider important.
>>>> [snip]
>>>>> [    8.394225] bttv0: using: Hauppauge (bt878)  
>>>>> [card=10,autodetected]
>>>>> [    8.394233] IRQ 21/bttv0: IRQF_DISABLED is not guaranteed on  
>>>>> shared IRQs
>>>> [snip]
>>>>>
>>>>> AG3.2 can not identify my /dev/video0 and /dev/video1, the  
>>>>> Access Grid Node Management just can identify X11 like video  
>>>>> source, but my ubuntu could identify my 2 video capture cards.
>>>>
>>>>
>>>> Porfirio,
>>>>
>>>> It looks like a hardware issue - your cards are recognised but  
>>>> not enabled by the operating system, so AG software won't detect  
>>>> them. Is any other (non-AG) software able to use video from these  
>>>> cards?
>>>>
>>>> Since the problem appears to be at the system level - some IRQ  
>>>> sharing issue - I would first try with only 1 capture card  
>>>> installed. You may also have to move the card(s) to different  
>>>> slots and look for differences in behaviour.
>>>>
>>>>
>>>> You mention that you've just upgraded your system - did you have  
>>>> AG software installed and running on the previous system with  
>>>> this same hardware combination?
>>>>
>>>>
>>>> chris
>>>>
>>>>
>>>> Christoph Willing                       +61 7 3365 8316
>>>> QCIF Access Grid Manager
>>>> University of Queensland
>>>>
>>>
>>
>> Christoph Willing                       +61 7 3365 8316
>> QCIF Access Grid Manager
>> University of Queensland
>>
>

Christoph Willing                       +61 7 3365 8316
QCIF Access Grid Manager
University of Queensland



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