Only interlaced for HDMI output ?!

Just installed latest driver. It say "on opening" that I would get 25p (1080PsF25) only throughout SDI ?!?!

HDMI being 50i mandatory ?

[Chris Pearse]

Hi,

If you're using a DeckLink card and the file or timeline you are playing back is in 1080p25, the likely fix is to select the option in the Blackmagic card's preferences to "use 1080p not PsF".

PsF is essentially progressive frames outputting as if they were interlaced, however HDMI doesn't support PsF. I expect if you check the above option both SDI and HDMI will be 1080p25.

I have the same problem with Desktop Video 10.4.0 and Deckling Studio 4K. I have connected a Sony CRT Class A monitor which needs 1080 PsF SDI input. When enabling this setting, HDMI output for second HDMI monitor connected looks very strange. Turning to 24p looks perfect on HDMI monitor but no picture at the CRT cause it needs PsF at the SDI output. Switching back to 10.3.7 everything is perfect with 1080PsF at SDI and working 1080p at HDMI output at the same time.

All the best
Andreas

I have also the same problem with driver 10.4 where our app's sets the output to be 24PsF. The SDI works fine but the HDMI doesn't recognize the segmented frame. Installing legacy driver 10.3.1 works fine so looks like its a bug introduced in 10.4 ... can somebody validate this?

Hi,

If you're using a DeckLink card and the file or timeline you are playing back is in 1080p25, the likely fix is to select the option in the Blackmagic card's preferences to "use 1080p not PsF".

PsF is essentially progressive frames outputting as if they were interlaced, however HDMI doesn't support PsF. I expect if you check the above option both SDI and HDMI will be 1080p25.

HDMI doesn't support PsF ? Okay... but legacy driver did offer that, (as do competitors) Strange

Hi,

If you're using a DeckLink card and the file or timeline you are playing back is in 1080p25, the likely fix is to select the option in the Blackmagic card's preferences to "use 1080p not PsF".

PsF is essentially progressive frames outputting as if they were interlaced, however HDMI doesn't support PsF. I expect if you check the above option both SDI and HDMI will be 1080p25.

well... not quite. This monitor wants PSF to be on. If I uncheck "1080PsF On" I get " Unsupported signal. Check your device output"

Althought the panel claims he is outputting 1080i50 on the HDMI side. there is something illogical there.

PsF on HDMI in most cases translated as interlaced and I think this is how BM cards also behave (PsF ticked).
If you untick PsF than signal is flagged as progressive. If you see unsupported signal than check if your monitor accepts 25p signals.

of course it won't do "true progressive" you're right, just PsF

it was my understanding that PsF was "cutting signal in two", for that kind of monitor and re-assembling it in monitor. you say it does in fact interlace it ?

but the monitor spec say 1080p, that is what I don't understand...

and Blackmagic desktop panel would be as a matter of fact... sincere. Telling me that it is interlaced since it is PsF

PsF only applies to SDI, not to HDMI. It's sort of legacy mode, which allows to send progressive signal over interlaced chain. Modern SDI based devices support real progressive and PsF, older just PsF.
PsF signal gets converted before it's send to HDMI output- either to interlaced (with PsF ticked) or progressive with unticked. PsF setting is for SDI signalling, but indirectly may also affect HDMI.

Whole PsF is just a signalling- at the end image stays progressive, but depending on the device this can cause some side effects. You basically flag progressive footage as interlaced (in case of HDMI), so if device (e.g. TV) relies on flag not analysing actual picture may start eg. deinterlacing it.