HDMI color space 6.2
#1
Posted 8 June 2018 - 08:32
The avr signal info always shows YCbCr 4:4:4. I have set HDMI color space to different values and restart the box, but the avr always says the input signal is YCbCr 4:4:4. So it looks like it has no effect.
The box is Vu+ Solo2 and 6.2 release 05th of Jun.
Any similar experience?
Re: HDMI color space 6.2 #2
Posted 8 June 2018 - 10:10
I don't think the VU+ 2gen MIPS receivers support any other HDMI colour space than YCbCr 4:4:4.
I don't see any advantage to change that anyway.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
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Re: HDMI color space 6.2 #3
Re: HDMI color space 6.2 #4
Re: HDMI color space 6.2 #5
Posted 8 June 2018 - 13:03
Hi,
Go with telnet or FTP into:
/proc/stb/avs/0/
There you will (perhaps) have files:
colorformat
colorformat_choices
There are also files in /proc/stb/video/
And check the content of them.
Pr2
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Re: HDMI color space 6.2 #6
Posted 8 June 2018 - 13:16
The drivers do not always correctly advertise the hardware's capabilities.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
Re: HDMI color space 6.2 #7
Posted 8 June 2018 - 14:15
Hi,
Go with telnet or FTP into:
/proc/stb/avs/0/
There you will (perhaps) have files:
colorformat
colorformat_choices
There are also files in /proc/stb/video/
And check the content of them.
Pr2
All files are empty. Their sizes are 0.
Edited by droland, 8 June 2018 - 14:15.
Re: HDMI color space 6.2 #8
Posted 8 June 2018 - 14:32
the content of them you can check with cat
root@mbmini:/var/volatile/tmp# ls -al /proc/stb/avs/0/
dr-xr-xr-x 2 root root 0 Jun 8 15:28 .
dr-xr-xr-x 3 root root 0 Jun 8 15:28 ..
-rw-r--r-- 1 root root 0 Jun 8 15:28 colorformat
-rw-r--r-- 1 root root 0 Jun 8 15:28 colorformat_choices
-rw-r--r-- 1 root root 0 Jun 8 15:28 fb
-rw-r--r-- 1 root root 0 Jun 8 15:28 fb_choices
-rw-r--r-- 1 root root 0 Jun 8 15:28 input
-rw-r--r-- 1 root root 0 Jun 8 15:28 input_choices
-rw-r--r-- 1 root root 0 Jun 8 15:28 sb
-rw-r--r-- 1 root root 0 Jun 8 15:28 sb_choices
-rw-r--r-- 1 root root 0 Jun 8 15:28 volume
root@mbmini:/var/volatile/tmp# cat /proc/stb/avs/0/colorformat
cvbs
root@mbmini:/var/volatile/tmp# cat /proc/stb/avs/0/colorformat_choices
cvbs rgb yuv
root@mbmini:/var/volatile/tmp# echo "rgb" > /proc/stb/avs/0/colorformat
root@mbmini:/var/volatile/tmp# cat /proc/stb/avs/0/colorformat
rgb
Edited by mrvica, 8 June 2018 - 14:37.
Re: HDMI color space 6.2 #9
Posted 8 June 2018 - 14:45
The drivers do not always correctly advertise all the hardware's capabilities.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
Re: HDMI color space 6.2 #10
Posted 8 June 2018 - 14:54
root@vusolo2:/# ls -al /proc/stb/avs/0/ dr-xr-xr-x 2 root root 0 Jun 8 15:47 . dr-xr-xr-x 3 root root 0 Jun 8 15:47 .. -rw-r--r-- 1 root root 0 Jun 8 15:47 colorformat -r--r--r-- 1 root root 0 Jun 8 15:47 colorformat_choices -rw-r--r-- 1 root root 0 Jun 8 15:47 fb -r--r--r-- 1 root root 0 Jun 8 15:47 fb_choices -rw-r--r-- 1 root root 0 Jun 8 15:47 input -rw-r--r-- 1 root root 0 Jun 8 15:47 sb -r--r--r-- 1 root root 0 Jun 8 15:47 sb_choices -rw-r--r-- 1 root root 0 Jun 8 15:47 volume -rw-r--r-- 1 root root 0 Jun 8 15:47 width root@vusolo2:/# cat /proc/stb/avs/0/colorformat cvbs root@vusolo2:/# cat /proc/stb/avs/0/colorformat_choices cvbs rgb svideo yuv
Edited by droland, 8 June 2018 - 14:54.
Re: HDMI color space 6.2 #11
Re: HDMI color space 6.2 #12
Posted 8 June 2018 - 15:05
The drivers do not always correctly advertise all the hardware's capabilities.
How many times do you want me to tell you?
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
Re: HDMI color space 6.2 #13
Posted 8 June 2018 - 15:29
I don't think the VU+ 2gen MIPS receivers support any other HDMI colour space than YCbCr 4:4:4.
I don't see any advantage to change that anyway.
Why do not you see advantage it? If TV cannot detect automatically black level and it is calibrated for full rgb of PC, the set top box color will be hazy, lifeless.
Re: HDMI color space 6.2 #14
Posted 8 June 2018 - 16:15
I never said the TV cannot detect it. It's nicely negotiated between STB and TV. If both agree on YCbCr 4:4:4 there is no problem? Never before someone has complained about the HDMI colour space being incorrect, simply because it's not incorrect. So I still don't understand what you want.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
Re: HDMI color space 6.2 #15
Posted 8 June 2018 - 16:48
I never said the TV cannot detect it. It's nicely negotiated between STB and TV. If both agree on YCbCr 4:4:4 there is no problem? Never before someone has complained about the HDMI colour space being incorrect, simply because it's not incorrect. So I still don't understand what you want.
I know. I said. The color space is not incorrect, but cannot change.
As I wrote... There is an isf calibrated TV. It was calibrated with full rgb color space with low black level from pc. The contrast, brigthness are set for rgb... The YCbCr will not be displayed correctly (hazy, lifeless). So it also would be good to change color space of stb to rbg (in accordance with PC)....
I can belive anybody had not problem. The most people cannot see if the picture is not good, Usually they use it too saturated... and change contrast, brigtness, backlight level...
I just tried to use rgb color space because there is available setting to change it in the menu (but does not work on VU+ Solo2). So that is why I have created this topic.
Re: HDMI color space 6.2 #16
Posted 8 June 2018 - 16:57
Some of the UHD receivers can work in RGB mode, but the Duo2 definitely not.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
Re: HDMI color space 6.2 #17
Re: HDMI color space 6.2 #18
Posted 8 June 2018 - 18:00
The Solo2 is even older, it became before the Duo2.
Only the UHD receivers have selectable colour space.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
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