broken xawtv

adityavpratap · 05-08-2006, 03:52 AM

Hi all,
When I try to run xawtv I get the following messages displayed on the console and xawtv will not run -

This is xawtv-3.91, running on Linux/i686 (2.6.16)
WARNING: Your X-Server has no DGA support.
can't open /dev/video0: No such file or directory
v4l-conf had some trouble, trying to continue anyway
v4l2: open /dev/video0: No such file or directory
v4l2: open /dev/video0: No such file or directory
v4l: open /dev/video0: No such file or directory
no video grabber device available

So I checked up /dev/ and found no video0 in it.

lsmod gives no output.

I tried to create the device video0 using the mknod command but the device disappears after reboot.

I tried all the methods I could find by googling but to no avail.

Any idea how can this problem be rectified?

Alien Bob · 05-08-2006, 06:36 AM

I guess you do not have a supported TV card or other video grabbing device (such as a webcam) available in your computer. Xawtv needs one such to be able to display anything at all.

Eric

koloth · 05-08-2006, 06:46 AM

which TV card are you using? Can you also post the output of lsmod?

Alien Bob · 05-08-2006, 07:04 AM

Quote:

Originally Posted by koloth

which TV card are you using? Can you also post the output of lsmod?

He stated "lsmod gives no output."

Eric

paragn · 05-08-2006, 07:19 AM

aditya,
You have not provided info about which device u r using with XawTv? Have you checked whether that device's required kernel module is loaded bewfore u start xawtv?

adityavpratap · 05-08-2006, 07:46 AM

xawtv is working fine on PCLinuxOS, which is also installed on my system. Moreover, it was working fine before I had to reinstall Slackware 10.1 after I stupidly corrupted my previous installation.
The TV tuner card is Pinnacle PCTV.

As I already stated lsmod gives no output.

Paragn > It may sound stupid but how do I check whether the required kernel module is loaded or not? I am a die-hard newbie you see. :-)

paragn · 05-08-2006, 07:49 AM

Aditya,
Which OS r u using to solve this problem on? And r u really not getting any output for lsmod ??

paragn · 05-08-2006, 07:50 AM

Aditya whats output of lspci also?

egag · 05-08-2006, 01:27 PM

Quote:

Originally Posted by adityavpratap

xawtv is working fine on PCLinuxOS, which is also installed on my system. Moreover, it was working fine before I had to reinstall Slackware 10.1 after I stupidly corrupted my previous installation.
The TV tuner card is Pinnacle PCTV.

As I already stated lsmod gives no output.

Paragn > It may sound stupid but how do I check whether the required kernel module is loaded or not? I am a die-hard newbie you see. :-)

i have the same card.
it needs the bttv driver.

you can check if it's loaded with: " dmesg |grep bttv"

if you get no output, check if the module exists with :
" /sbin/modprobe -l |grep bttv "

if it's not there, check if your kernelmodules are installed.
else, check if /etc/rc.d/rc.hotplug is executable.
( i think it should be loaded by hotplug )

egag

adityavpratap · 05-08-2006, 11:39 PM

Thanks for being patient with me ;-)
I had compiled my kernel as a single monolithic block hence I was not getting any output for lsmod.
I recompiled and here is the output of lsmod -
Module Size Used by
rtc 10332 -
i2c_sis96x 4812 -
i2c_core 16776 -
Currently I am having this problem on Slackware 10.1, kernel 2.6.16.

Quote:

aditya@Hostname:~$sudo /sbin/lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 651 Host (rev 02)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge ( AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS962 [MuTIOL Media IO] (r ev 25)
00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound Cont roller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:0a.0 Ethernet controller: MYSON Technology Inc SURECOM EP-320X-S 100/10M Ethe rnet PCI Adapter
00:0b.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture ( rev 11)
00:0b.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11 )
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139 C+ (rev 10)
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter

Egag, dmesg |grep bttv gives no output neither does /sbin/modprobe -l |grep bttv. And yes, /etc/rc.d/rc.hotplug is executable. As for the kernel modules, I don't know which are to be installed, kindly enlighten me as to which specific modules are to be installed.

adityavpratap · 05-09-2006, 08:07 AM

Eureka.
I finally got it going. The problem was the BT848 was not selected in xconfig while I was compiling the kernel. Having selected it and after recompiling the kernel I am now able to run xawtv.
Thanks to all of you wonderful people for helping me out on this one.

egag · 05-09-2006, 08:45 AM

ah..that's fast.
( edit away my setup..... )

can you tell me...is sound working directly for you,
or do you use a cable ?

also, xawtv didn't give me a good picture.
i use "tvtime" which has a smooth image ( at the cost of some cpu time.)

egag

newio · 05-09-2006, 09:14 AM

egag, im interested in the sound question too. I have to connect my audio out on the tv card directly to the speakers, which means i can't record sound. Is there anyway to get that sound coming through the sound card and therefore recordable?

xawtv also lacked picture (and color!) quality for me too, but i settled for xdtv. Seems just an extended version of xawtv. Mazaic channels rocks!

egag · 05-09-2006, 09:47 AM

hi,

for sound i use a cable from the tv-card-out to the line-in of the soundcard.
( not directly to the speakers ).
you could try that.
i can record sound with that setup.

but for my card( almost 10 years old ) i never had direct sound support.
what card do you have ?

oh...and thanks for th xdtv hint.
the screenshot i saw on their homepage looks great.
gonna try that in a few moments...

egag

adityavpratap · 05-09-2006, 10:34 AM

egag,
I am sorry to say that I had spoken too early. No doubt, xawtv is working but I am unable to change channels. That is, only one channel gets displayed and no matter what you do, it doesn't change. Secondly, no audio.
And yes, I too have to connect the tv-out card to the line of sound card with an external cable, when my Xawtv is working.
Any idea what could be wrong. Any other modules to be installed?