[mythtv] No TV displayed

Isaac Richards mythtv-dev@snowman.net
Sat, 17 Aug 2002 22:16:20 -0400


On Saturday 17 August 2002 08:42 pm, Brad Davis wrote:
> I have compiled/installed from CVS (and version 0.4). The programs
> mythepg and  mythfrontend both work correctly (and look very slick I
> might add), but mythtv doesn't show the TV. When I run it, no window is
> even displayed on my monitor. TV does work in both avview, and xawtv
> though.
>
> I am using the GATOS drivers for my ATI AIW 7500 with kernel version
> 2.4.9, and XFree86-4.2.0.
>
> Here is the output from mythtv:
>
> Probed:
> Changing from None to WatchingLiveTV
> libavcodec: CPU flags: mmx mmxext sse sse2
> error finding codec
> using rtjpeg
> VIDOCGMBUF:: Invalid argument
> VIDIOCSAUDIO: Invalid argument
>
> Do I need to tell mythtv to use the monitor as the output device, or is
> there something else wrong here? Thanks for any help,

Something else is wrong =)

That VIDIOCGMBUF message is where it's bailing, it's not even starting to 
record or anything.  Can you run 'xawtv -debug 2' for a second or two, and 
send me the output off-list?  It'll be fairly large.  I _think_ it's because 
the v4l driver for that card doesn't support the mmap interface to v4l, but 
I'd like to make sure.

Isaac

> Brad
>
>
> Here is what shows up in /var/log/messages:
>
> Aug 17 18:39:57 enrock kernel: radeon_get_window_parameters: width=640
> height=240 Aug 17 18:39:57 enrock kernel: Allocated 307200 bytes for a
> single frame buffer Aug 17 18:39:57 enrock kernel: frame table virtual
> address 0xd4d59000, physical address: 0x0a6aa000, bus address: 0x0a6aa000
> Aug 17 18:39:57 enrock kernel: Frame d092baf8
> Aug 17 18:39:57 enrock kernel: Allocated 307200 bytes for a single frame
> buffer Aug 17 18:39:57 enrock kernel: frame table virtual address
> 0xd4da7000, physical address: 0x0acca000, bus address: 0x0acca000 Aug 17
> 18:39:57 enrock kernel: Frame d092bb14
> Aug 17 18:39:57 enrock kernel: RADEON_BUS_CNTL=0x5133a3b0
> Aug 17 18:39:57 enrock kernel: radeon_get_window_parameters: width=640
> height=240 Aug 17 18:39:57 enrock kernel: km: total frames: 0, overrun: 0
> Aug 17 18:39:58 enrock kernel: radeon_get_window_parameters: width=640
> height=240 Aug 17 18:39:58 enrock kernel: Allocated 307200 bytes for a
> single frame buffer Aug 17 18:39:58 enrock kernel: frame table virtual
> address 0xd4d59000, physical address: 0x0ed88000, bus address: 0x0ed88000
> Aug 17 18:39:58 enrock kernel: Frame d092baf8
> Aug 17 18:39:58 enrock kernel: Allocated 307200 bytes for a single frame
> buffer Aug 17 18:39:58 enrock kernel: frame table virtual address
> 0xd4da7000, physical address: 0x0c4a8000, bus address: 0x0c4a8000 Aug 17
> 18:39:58 enrock kernel: Frame d092bb14
> Aug 17 18:39:58 enrock kernel: RADEON_BUS_CNTL=0x5133a3b0
> Aug 17 18:40:04 enrock kernel: km: total frames: 0, overrun: 0
>
>
> There are no error messages in XFree86.0.log
>
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