I'm new to the list, and of course with a problem ....
I'm a trying to install a TV Box running VDR on an EPIA M 10000 board.
I want VDR running onto the framebuffer throw softdevice plugin, and i want hardware MPEG acceleration.
So, i found this nice tutorial : http://www.mellander.org/per/projects/linux/?chapter=epia-hw-cle266 ...
Everything works perfectly on my PC monitor, i got : the famebuffer console, i can see VDR interface, decode an MPEG stream with acceleration ...
BUT my TV screen goes crazy ! It is activated but completly scrambled, there is some lines ( looks like interlacing problems ??, the image is shifted, duplicated .... ).
This problems comes just after viafb/fbcon module inserting, so there'is no problem with DiretFB, or DF++ or VDR, the problems comes from viafb module.
I have configured into the BIOS (TV+CRT, 800x600, PAL (i'm in france), direct access to framebuffer .... ).
Then i load the module :
sudo insmod viafb.ko TVon=0 # (0 is for enable ...)
At this time an fbset gives me :
mode "720x576-74"
# D: 41.475 MHz, H: 44.693 kHz, V: 74.488 Hz
geometry 720 576 720 1152 32
timings 24111 88 32 16 4 88 4
rgba 8/16,8/8,8/0,8/24
endmode
and fbset -i :
Frame buffer device information:
Name : UNICHROME
Address : 0xd8000000
Size : 33288192
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 0
YPanStep : 1
YWrapStep : 0
LineLength : 2880
MMIO Address: 0xdc000000
MMIO Size : 16777216
Accelerator : Unknown (77)
So i do a fbset "720x576-50" with this definition :
mode "720x576-50"
geometry 720 576 720 576 16
timings 35714 32 8 46 0 136 3
bcast true # request overscan with (modified) viafb
endmode
then the set gives :
mode "720x576-50"
# D: 28.000 MHz, H: 31.250 kHz, V: 50.000 Hz
geometry 720 576 720 576 16
timings 35714 32 8 46 0 136 3
bcast true
accel true
rgba 5/11,6/5,5/0,0/0
endmode
That's weird, everything is working on PC screen, and not on TV !
I tried a patch to the kernel from VDR Eclipse site, with the same bad results. ( http://vdr.bluox.org/download/epia/viafb_03-720x576noscale-2.6.14.patch.bz2)
I've also tried via driver and it works (with the same fb.modes) but is really slow ! I can't decode an MPEG stream with this !
I'm a little bit disapointed ! Please Help ! :)
Some not directly related questions :
Do you know how to prevent fbcon module insertion at boot time ? ( I tried to remove it from /lib/modules/ ... and it was stille loaded after reboot !!! Magik ? Initrd ?
Do you know how to force a power off on an USB device? i want to stop USB power supply to my DVB-T USB device to make a hard reset to it, it seems to very stable ....
Thanks in advance for your help ...
Cheers
Tom
--
Cheers,
Thomas TESTASECCA
(o-
// \ In a world without walls and fences, who needs Windows and Gates ?
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