Talk:HOWTO Setup TV Input for MythTV/Previous
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[edit] BT848
For those who have the Hauppauge cards with the BrookTree 848 or 878 chipset (such as the WinTV-GO), the BT848 module is all you need for drivers. Those of you with the WinTV-GO-FM can use this driver too, as it also has radio support. So please skip the ivtv section below, if you have one of those cards.
If you are using the Hauppauge DVR-150 or DVR-500, use the "Conexant 2388x (bt878 successor)" driver instead of the "BT848 Video For Linux".
The module is located here in your kernel menuconfig so there is no additional driver setup needed.
Note: If your card does not work by default, or gives you a scrambled picture, it may be necessary to force a card and tuner type. To find your card/tuner ID, refer to:
- /usr/src/linux/Documentation/video4linux/CARDLIST.bttv
- /usr/src/linux/Documentation/video4linux/CARDLIST.tuner
Once you have a card number and tuner number, pass them as options to your bttv kernel module.
modprobe bttv card=nn tuner=xx
Where nn is the card number as defined in CARDLIST.bttv and where xx is the tuner number as defined in CARDLIST.tuner.
To make sure your card and tuner type have been set correctly, check your dmesg output:
dmesg | grep bttv && dmesg | grep tuner
Also, you'll want to make sure the tuner is set properly on boot. If you have compiled bttv support as a module, you'll need to create a file in /etc/modprobe.d to pass the tuner and card options. For example, if you have an ATI TV Wonder VE in an NTSC region:
#echo options bttv card=64 tuner=2 > /etc/modprobe.d/bttv #update-modules
Or if bttv is built-in to the kernel, add bttv.card=nn bttv.tuner=xx to your list of kernel arguments to pass at boot time.
It is very important to have your card and tuner type set correctly before running mythsetup and mythfilldatabase, otherwise your channel frequencies may be set incorrectly!
[edit] Hauppauge PVR-150/PVR-250/PVR-350/PVR-500 & Avermedia m179
These cards use the ivtv driver. A good and comprehensive guide about installing ivtv can be found here.
[edit] pcHDTV HD-3000 Card
The drivers for the pcHDTV HD-3000 card are included in the 2.6.12 (and later) kernel. Use a kernel 2.6.12 or later kernel and enable the HD-3000 card support:
| Linux Kernel Configuration: HD-3000 Kernel Options |
Multimedia devices --->
<M> Video For Linux
Video For Linux --->
<M> Conexant 2388x (bt878 successor) support
<M> DVB Support for cx2388x based TV cards
Digital Video Devices Broadcasting --->
[*] DVB For Linux
<M> DVB Core Support
Customize DVB Frontends --->
|
If the drivers were compiled as a kernel module, you must load the drivers. You can only load either the DVB or Video 4 Linux drivers, but not both. Assuming you want to load the DVB drivers:
| Code: Loading the HD-3000 Drivers |
# modprobe -v cx88-dvb You should see output similar to the following: insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/dvb/frontends/dvb-pll.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/dvb/frontends/cx22702.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/video-buf.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/dvb/dvb-core/dvb-core.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/video-buf-dvb.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/base/firmware_class.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/dvb/frontends/or51132.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/videodev.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/tveeprom.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/btcx-risc.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/common/ir-common.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/i2c/algos/i2c-algo-bit.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/cx88/cx88xx.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/dvb/frontends/mt352.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/cx88/cx8802.ko insmod /lib/modules/2.6.12-gentoo-r6/kernel/drivers/media/video/cx88/cx88-dvb.ko |
[edit] Firmware
Users of the pcHDTV HD-3000 card will need to load the card's firmware when the drivers are initialized. This uses the hotplug utility
| Code: Install Hotplug |
emerge hotplug |
The media-tv/linuxtv-dvb-firmware package provides the necessary firmware files. The latest version of udev should contain all the compatible rules needed for dvb devices. Make sure you set DVB_CARDS in /etc/make.conf first.
| Code: Install HD-3000 Firmware and udev rules |
# grep DVB_CARDS /etc/make.conf DVB_CARDS="or51132 or51211" # emerge media-tv/linuxtv-dvb-firmware |
Note: The HD-3000 card firmware doesn't actually load until the system attempts to access the card. In MythTV this occurs during a channel scan in mythtv-setup, or when attempting to tune in a channel (can occur when starting mythbackend if a default channel is set). After MythTV starts the up the following entries in dmesg will confirm the firmware loaded successfully:
| Code: Verify the Firmware Loaded |
# dmesg or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)... or51132: Version: 10001134-19430000 (113-4-194-3) or51132: Firmware upload complete. |
[edit] Troubleshooting HD-3000 Firmware
On some systems the kernel is calling /sbin/udevsend instead of /sbin/hotplug, which results in failures to load the HD-3000 firmware.
| Code: Verify The udev Configuration |
# cat /proc/sys/kernel/hotplug /sbin/udevsend |
A pcHDTV forum post has this work-around:
1) emerge the udev source, I grabbed the latest, udev-064.
| Code: Download udev Source |
ACCEPT_KEYWORDS="~x86" ebuild $(equery w udev) clean unpack |
this created a directory in /var/tmp/portage with the src that I could compile manually.
2) compile
| Code: Compile udev |
make && make install |
3) compile and copy the extra hotplug binary
| Code: Compile udev_run_hotplug |
make EXTRAS=extras/run_directory cp extras/run_directory/udev_run_hotplugd /sbin |
4) add a line to the end /etc/udev/rules.d/50-udev.rules
NOTE: as of udev-079-r1 this line already exists
| File: /etc/udev/rules.d/50-udev.rules |
echo "ENV{UDEVD_EVENT}==\"1\", RUN+=\"/sbin/udev_run_hotplugd\"" >> /etc/udev/rules.d/50-udev.rules
|
I then rebooted, not sure if that is necessary or if simply restarting hotplug would suffice.
[edit] Confirming the card was recognized
Something similar to the following should be found with dmesg:
| Code: Verify the HD-3000 Card is Recognized |
# dmesg cx2388x v4l2 driver version 0.0.4 loaded ACPI: PCI Interrupt 0000:03:02.0[A] -> GSI 17 (level, low) -> IRQ 17 cx88[0]: subsystem: 7063:3000, board: pcHDTV HD3000 HDTV [card=22,autodetected] cx88[0]/0: found at 0000:03:02.0, rev: 5, irq: 17, latency: 64, mmio: 0xfc000000 tuner 0-0061: chip found @ 0xc2 (cx88[0]) tuner 0-0061: type set to 52 (Thomson DDT 7610 (ATSC/NTSC)) cx88[0]/0: registered device video0 [v4l2] cx88[0]/0: registered device vbi0 cx88[0]/0: registered device radio0 cx2388x dvb driver version 0.0.4 loaded ACPI: PCI Interrupt 0000:03:02.2[A] -> GSI 17 (level, low) -> IRQ 17 cx88[0]/2: found at 0000:03:02.2, rev: 5, irq: 17, latency: 64, mmio: 0xfd000000 cx88[0]/2: cx2388x based dvb card DVB: registering new adapter (cx88[0]). DVB: registering frontend 0 (pcHDTV HD3000 HDTV)... |
At this point, assuming the HD-3000 drivers are loaded in the kernel and the udev rules are in place the device files should exist. If the permissions are not correct, look in the file /etc/udev/permissions.d/10-pcHDTV.
| Code: Verify the /dev files |
# ls /dev/dvb/adapter0/* /dev/dvb/adapter0/demux0 /dev/dvb/adapter0/dvr0 /dev/dvb/adapter0/frontend0 /dev/dvb/adapter0/net0 |
Now lets make sure we can tune and watch HD contents using the HD3000.
1) Install DVB Applications
| Code: Install dvb applications |
# emerge linuxtv-dvb-apps |
2) create the ~/.azap/channels.conf
| Code: channels.conf |
# mkdir ~/.azap # atscscan /usr/share/dvb/atsc/us-NTSC-center-frequencies-8VSB >> ~/.azap/channels.conf |
your channels.conf might look like follow:
| File: channels.conf |
WETA-DT:551000000:8VSB:49:52:1 WETAPRM:551000000:8VSB:65:68:2 WETAFML:551000000:8VSB:81:84:3 WETAPLS:551000000:8VSB:97:100: WUSA-HD:593000000:8VSB:49:52:1 9-Radar:593000000:8VSB:65:68:2 WTTG-DT:605000000:8VSB:49:52:3 WJZ-DT:617000000:8VSB:49:52:1 Default:623000000:8VSB:49:52:3 |
3) See if we can receive any HD content in X
# azap -r WETA-DT (replace this with any channels you see in your channels.conf)
you should see the following:
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 551000000 Hz video pid 0x0031, audio pid 0x0034 status 00 | signal d1a9 | snr f94f | ber 00000000 | unc 00000000 | status 1f | signal d3b5 | snr f985 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal d3b5 | snr f979 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal d3b5 | snr f987 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal d3b5 | snr f969 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal d3b5 | snr f97d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal d5c1 | snr f979 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
If you do not see output similar to above or you do not receive constant FE_HAS_LOCK, then the channel you are trying to tune does not have very good signal. Try pick another channel.
4) While azap is running in one terminal, see if we can actually watch what is being captured
# mplayer /dev/dvb/adapter0/dvr0
If you were able to get pictures, you now have a working HD3000.
Once you verify that the card is recognized, you should configure gentoo to autoload the HD-3000 drivers.
| File: Additions to /etc/modules.autoload.d/kernel-2.6 |
# pcHDTV 3000 drivers cx88-dvb |
[edit] For over the Air in the US
Select a card type of "dvb" for ATSC/HDTV/digital.
Select a card type of "pcHDTV 2000/3000" for analog.
[edit] Use Flags
You must have the "dvb" use flag enabled. If you have not previously enabled this flag be sure to recompile the affected packages:
| Code: Rebuild System with DVB USE Flag |
emerge -avuDN world |
[edit] Matrox G400 - TV
works as of 2.6.12
- Basic steps are go and get the source from mgavideo at sf.net.
- use the cvs version and get driver_fb
- patch, config your kernel as explained in the readme on cvs. the 2.6.7 patch works fine for 2.6.12
- run ./iv on boot before running mythbackend
don't use emu10k with via and this sound card => crackly sound
