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WillyWonka
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 Posted: Sat Apr 09, 2005 5:05 pm |
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Joined: Sat Dec 11, 2004 4:59 pm
Posts: 30
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I've got th TV working on my 350 in software mode. I told myth tv to use the hardware decoder instead and it works, for about 1 second. then it goes black. Then it comes back. Then it goes black and stays black.
Does anyone know how to get rid of this problem? I can't seem to find anything in the forums/wiki about this.
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lane
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Posted: Sun Apr 10, 2005 10:47 am |
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Joined: Thu Dec 23, 2004 12:22 pm
Posts: 55
Location:
Portland, OR
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WillyWonka
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Posted: Mon Apr 11, 2005 5:46 am |
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Joined: Sat Dec 11, 2004 4:59 pm
Posts: 30
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5a12. Tried the script a while back. Didn't work. I'll go through that page tonight sometime.
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WillyWonka
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Posted: Mon Apr 11, 2005 7:02 pm |
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Joined: Sat Dec 11, 2004 4:59 pm
Posts: 30
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Okay, now that I've actually had a chance to look at the link I see that it is the one I've looked at a billion times already.
I just tried a different TV with my tuner and I can now see that the black screen is caused by a box drawing over top of the hardware rendered tv channel. So I think I need to set an alpha somewhere, but I can't remember how to do it and I can't find the document for it. Can someone help me out?
If I type
Code: ivtvfbctl /dev/fb1 -globalalpha -nolocalalpha
I can see the TV but the black is fading it out. And the channel listing at the bottom flickers on and off when I change the channel.
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WillyWonka
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Posted: Tue Apr 12, 2005 6:46 pm |
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Joined: Sat Dec 11, 2004 4:59 pm
Posts: 30
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Okay, I'm really getting pissed at this thing. I've tried adding
Code: ivtvfbctl /dev/fb1 -nolocalalpha -globalalpha -alpha 0
To /etc/init.d/set_ivtv_params and /etc/init.d/bootmisc.sh but neither work. When I do it from the command line, it sometimes works.
Anyone have any suggestions?
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rod821
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Posted: Thu Apr 14, 2005 1:14 pm |
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Joined: Mon Nov 08, 2004 9:32 pm
Posts: 66
Location:
Murfreesboro, TN
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Well the only way that I have ever been able to get around this was to replace the included X-11 IVTV driver "ivtvdev_drv.o" with an older version and upgrade from 2.6.9 to 2.6.10 kernel.
It is some kind of interaction between the 2.6.9 kernel/Fluxbox and the ivtv-fb X11 driver when usign the pvr-350 tv output. I have sent a copy of the old driver that I had used to Cesman a while back. If you a want let me know and I can email you a copy of the driver that I am using.
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PranksterO
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Posted: Sun May 01, 2005 1:28 pm |
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Joined: Thu Apr 28, 2005 5:30 pm
Posts: 11
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Im getting the black screen too. Ive used the pvr.pl setup script and tv out works only when the hardware decode box is not checked. I only get a black screen when I enable it.
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Conson
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Posted: Fri Jun 03, 2005 3:11 pm |
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Joined: Fri May 20, 2005 3:21 pm
Posts: 3
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Hey everybody..
First of all.. MythTv is such a great product.. And KnoppMyth enabled a linux-noob as me to install it..
BUT
I'm also getting this annoying black screen while watching live tv or a recording.. I can see approx. 1 pixel wide of the live picture in each side of the screen.. The rest is black..
Push pause (or something else that causes a OSD to appear => the picture is back.. But after a few seconds it disappears again..
I'm running a clean R5A15.1 on a PVR350. P4 2.4GHz and so on...
I hope there is a solution for this.. It is so annoying..
Thanks in advance!!
Conson.
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brendan
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Posted: Fri Jun 03, 2005 4:27 pm |
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Joined: Tue Dec 07, 2004 12:04 pm
Posts: 369
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Conson: good description of symptom, bad description of how you got there.
What video card are you using? Are you using tv-out? Of the video card or of a capture/playback card? What files did you change manually? Etc.
-brendan
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Conson
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Posted: Sat Jun 04, 2005 2:45 pm |
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Joined: Fri May 20, 2005 3:21 pm
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Hey Brendan..
Sorry for the lack of information.. I guess it was a little late and I'd been googl'ing for too long.. 
I'm using a single pvr350 for capture and tv-out. (no problems with capturing..)
I've modified the /etv/mythtv/modules/ivtv file to look like this:
Code: alias char-major-81 videodev
alias char-major-61 lirc_i2c
#options ivtv debug=1
#options tuner type=2
options msp3400 once=1 simple=1
install ivtv /sbin/modprobe tuner; /sbin/modprobe msp3400; /sbin/modprobe saa7115; /sbin/modprobe --ignore-install ivtv; /sbin/modprobe ivtv-fb; /sbin/modprobe lirc_i2c
remove ivtv /sbin/modprobe -r --ignore-remove ivtv && /sbin/modprobe -r saa7115 && /sbin/modprobe -r msp3400 && /sbin/modprobe -r tuner && /sbin/modprobe -r ivtv-fb && /sbin/modprobe -r lirc_i2c
And some parts of my /etc/X11/XF86Config-4 now looks like this: (it's based on the XF86Config-4.pvr350-tvout-sample) Code: Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "TV Screen"
InputDevice "USB Mouse" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
....
Section "Module"
Load "ddc" # ddc probing of monitor
# Load "GLcore"
Load "dbe"
Load "v4l"
Load "extmod"
# Load "glx"
Load "bitmap" # bitmap-fonts
Load "speedo"
Load "type1"
Load "freetype"
Load "record"
EndSection
...
Section "Monitor"
Identifier "PAL TV"
HorizSync 30-68
VertRefresh 50-120
Mode "720x576"
# D: 34.563 MHz, H: 37.244 kHz, V: 73.897 Hz
DotClock 34.564
HTimings 720 752 840 928
VTimings 576 577 580 602
Flags "-HSync" "-VSync"
EndMode
EndSection
Section "Device"
Identifier "Hauppauge PVR 350 iTVC15 Framebuffer"
Driver "ivtvdev"
### change fb1 to whatever number you got in the previous section
Option "fbdev" "/dev/fb0"
Option "ivtv" "/dev/fb0"
### change the busid to whatever is reported by lspci. Note that
### output of lspci is hex, so add a preceding "0x" to the BusID
BusID "0:0x01:0"
EndSection
Section "Screen"
Identifier "TV Screen"
Device "Hauppauge PVR 350 iTVC15 Framebuffer"
Monitor "PAL TV"
DefaultDepth 24
DefaultFbbpp 32
Subsection "Display"
Depth 24
FbBpp 32
Modes "720x576"
EndSubsection
EndSection
The MythTv menus works just fine on the TV and sound during playback are also working nicely..
Besides the mentioned adjustments I 've also started samba filesharing and installed a ntp-server. This should not interfer with the TV-out I hope..
I hope these details descripes the system better..
Please let me know if you need more details or have any solution to my problem.. Are there no one else having problems with the TV-OUT on pvr350 with KnoppMyth R5A15.1??
Thanks in advance!
Conson..
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aspain
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Posted: Wed Jun 08, 2005 3:07 am |
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Joined: Fri May 06, 2005 6:31 am
Posts: 79
Location:
Spain
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Hi!, can you help me ? I use 15.1 with tv-out but I have no sound
my ivtv is the same as you and my XF86Config-4 look like this :
InputDevice "PS/2 Mouse" "CorePointer"
Driver "ivtvdev"
Option "ivtvdev" "/dev/fb0"
BusID "PCI:02:01:00"
I use RCA cable
thanks
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bondo
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Posted: Wed Jun 08, 2005 7:19 am |
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Joined: Tue May 10, 2005 9:39 am
Posts: 30
Location:
Brisvegas, Australia
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you mean PVR250/350 TV Out? is the sound output for the TV card plugged into the sound input for the audio card?
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aspain
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Posted: Wed Jun 08, 2005 10:18 am |
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Joined: Fri May 06, 2005 6:31 am
Posts: 79
Location:
Spain
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 Ok thanks, I resolved my problem. That was my ivtv file. the file was corrupt by -->ctrl+m<--
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bondo
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Posted: Sat Jun 11, 2005 11:42 pm |
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Joined: Tue May 10, 2005 9:39 am
Posts: 30
Location:
Brisvegas, Australia
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with respect to the problem of the dreaded black screen when using PVR-350 hardware decoding, I have found on my system that if you uncheck the "Use GUI Size for TV Playback" in
Quote: Utlilities/Setup - Setup - Appearance - 2nd Screen
then the black screen problem goes away. well, at least for me
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Conson
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Posted: Mon Jun 13, 2005 1:47 pm |
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Joined: Fri May 20, 2005 3:21 pm
Posts: 3
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Hey bondo!
Thanks a lot for your input!.. It solved my problem too.. Been watching liveTV for 45 minutes now.. Without interruption!
Conson..
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