Current Server Time: 14:09 (Central Europe)

#apertus IRC Channel Logs

2017/01/31

Timezone: UTC


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ItsMeLenny
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03:12
Bertl
off to bed now ... have a good one everyone!
03:12
Bertl
changed nick to: Bertl_zZ
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se6astian|away
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Bertl_zZ
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13:58
Bertl
morning folks!
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Hannes___
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Hannes___
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15:58
Bertl
hello Hannes___!
15:58
Hannes___
Hi Herbert.
15:58
Hannes___
Ich habs geschafft :-)
15:59
Bertl
great! (channel language is english, jfyi)
15:59
Hannes___
alright
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17:59
se6astian
meeting starting soon, I am just finishing my dinner
17:59
se6astian
give me a few more minutes :)
18:07
se6astian
ok ready!
18:07
se6astian
so who is here for the meeting?
18:07
Bertl
I am
18:08
se6astian
great :)
18:09
Bertl
but it looks like we are the only ones
18:09
Bertl
in which case I suggest to spend the time better :)
18:09
GrahamM
I'm here :)
18:09
Bertl
ah, no, we got one more, great! :)
18:10
se6astian
so GrahamM how are you?
18:10
se6astian
what did you work on recently?
18:11
GrahamM
Good, thanks.
18:13
morrigan1
changed nick to: morrigan
18:18
GrahamM
With regards to HDMI compatibility, can anything be tweaked easily, or is it all VHDL related?
18:19
se6astian
a lot can be tweaked
18:19
Bertl
HDMI is done completely in the FPGA, so the code is VHDL
18:19
Bertl
but it is designed in such way, that you can control it from the cpu side
18:19
se6astian
https://wiki.apertus.org/index.php/AXIOM_Beta/AXIOM_Beta_Software#HDMI_Output
18:20
Bertl
i.e. a number of currently memory mapped registers control the various aspects
18:23
GrahamM
I have a Blackmagic Video Assist 4K and it won't accept any framerate I choose. It would be nice to use it.
18:24
Bertl
probably the first step is to figure out what it 'claims' to accept
18:24
Bertl
i.e. connect it to a PC and dump the edid tables
18:26
Bertl
once you know that, you can start building a suitable mode
18:35
GrahamM
Strange, it shows max of 1920x540 60Hz.
18:36
Bertl
simply dump the entire EDID to a file
18:36
Bertl
it is quite small and upload it somewhere for a start
18:36
se6astian
do we already have a section in the wiki that covers how to do that?
18:36
Bertl
probably not
18:36
se6astian
I think it would make sense to start collecting EDID from multiple devices
18:36
se6astian
please quickly explain the commands
18:37
Bertl
definitely
18:37
davidak
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18:37
Bertl
the simplest way is probably with monitor-edid
18:38
Bertl
but ddcontrol helps as well, and on recent kernels, the edid is extracted
18:40
se6astian
GrahamM: can you please run both commands and upload the output
18:40
se6astian
I will add it to the wiki then
18:40
se6astian
I think we can officially end todays team meeting and deal with HDMI documentation instead :)
18:41
Bertl
for example, on my linux system, when I check for the graphics card with lspci
18:42
Bertl
I see that the card is at bus-id 03:00.0
18:42
Bertl
which results in a device path under /sys with
18:42
Bertl
/sys/devices/pci0000\:00/0000\:00\:03.0/0000\:03\:00.0
18:43
Bertl
there is a drm entry which contains per card and per port subdriectories
18:43
Bertl
*subdirectories even
18:43
Bertl
and the full path to the edid for the first port here is:
18:43
Bertl
/sys/devices/pci0000\:00/0000\:00\:03.0/0000\:03\:00.0/drm/card0/card0-DP-1/edid
18:44
Bertl
in the same dir is a processed version which lists the detected modes in 'modes'
18:45
Bertl
here I found a python script which seems to get the data from xrandr
18:45
getzi
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18:45
Bertl
https://gist.github.com/mvollrath/9aa0198264e6b4890914
18:53
se6astian
GrahamM: are you still with us?
19:01
GrahamM
Yes.
19:04
se6astian
great
19:15
GrahamM
Sent it by email to you both.
19:24
se6astian
thanks
19:28
se6astian
Bertl: how should we collect them
19:28
se6astian
wiki?
19:28
se6astian
github?
19:28
se6astian
decode them as well somehow?
19:31
Bertl
I would definitely store the binary somewhere
19:32
Bertl
but a decoded version is enough to work with
19:32
Bertl
(and can be easily shown on the wiki)
19:41
se6astian
how can we decode it?
19:43
Bertl
edid-decode
19:44
se6astian
can you paste me the result please
19:44
Bertl
haven't got the edid data yet
19:45
GrahamM
Bertl, the email was rejected.
19:47
se6astian
i ll upload it
19:48
se6astian
https://cloud.gerade.org/index.php/s/T6HQJymJLn5HtZu
19:50
GrahamM
I have sent another email to you both.
19:54
se6astian
uploaded the attachment to the above link
19:54
se6astian
I thought decode actually makes it human readable?
19:54
se6astian
is that not the case?
19:55
getzi
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19:57
Bertl
yes, here is the output from edid-decode:
19:58
Bertl
http://pastebin.com/raw/6qzxAziG
20:00
Bertl
so the reason it doesn't work with the typical modes seems to be that it simply doesn't do 1080p60 as advertized (VIC blocks) but only supports the detailed modes which are not really anything we currently produce
20:00
se6astian
thanks
20:00
se6astian
adding to wiki
20:01
se6astian
what model is it exactly GrahamM ?
20:01
Bertl
all the clock rates given there suggest that 1080p30 is somewhat the maximum you can do
20:02
se6astian
strange, its called "Blackmagic Video Assist 4K" so it should do more
20:02
se6astian
can it take 4K signals only via SDI?
20:03
Bertl
it advertises four extended HDMI modes
20:03
GrahamM
It accepts 1080p60 from my PC. I have used a 4K camara with no problems.
20:04
Bertl
so what settings does your 1080p60 PC setup produce/use?
20:06
se6astian
added to wiki
20:06
se6astian
https://wiki.apertus.org/index.php/HDMI_EDID_Archive
20:06
se6astian
what was the process to capture this edid now?
20:06
se6astian
I want to also add that to the wiki page
20:06
se6astian
Extended HDMI video details: HDMI VIC 0 3840x2160@30Hz HDMI VIC 1 3840x2160@25Hz HDMI VIC 2 3840x2160@24Hz HDMI VIC 3 4096x2160@24Hz
20:14
GrahamM
According to the AMD settings, 1080p60 RGB@12bpc. VA4K displayed this OK.
20:15
comradekingu
I have a meyer optic lens that i can get sent to apertus if i get the VAT number, then you can give it to me along with the camera once that is done
20:16
GrahamM
I tried the Beta on a Samsung 1080p TV and it would only accept 1080p60, it would not display 25 and 50.
20:16
se6astian
comradekingu: what kind of lens is it?
20:17
GrahamM
Got to go for now, will be back later.
20:18
Bertl
GrahamM: the TV might be extra picky
20:19
se6astian
right, thanks for pushing this GrahamM, stay on it :)
20:38
comradekingu
se6astian: Trioplan f2.9/50 and Primoplan 58 f1.9
20:39
comradekingu
p r o d u c t i o n v a l u e for the teamtalks. Just need amiga toaster and everything will be just so
20:53
intracube
hi, just sent a request for edit access for the current flyer google doc
20:54
intracube
se6astian: ^ (or whoever owns the doc)
20:59
se6astian
done
21:00
intracube
danke
21:01
comradekingu
They are in nikon mount
21:01
comradekingu
or nikkor maybe it is
22:07
ItsMeLenny
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22:12
se6astian
comradekingu: what do you envision we do with those lenses?
22:12
se6astian
and what do you need the VAT number for?
22:14
se6astian
off to bed
22:14
se6astian
good night
22:16
comradekingu
se6astian: film the team talks
22:16
comradekingu
Because then i dont have to pay that
22:17
comradekingu
I think they would be well suited to show the capabilities of the sensor. Sure are expensive enough
22:26
intracube
what is the actual ZIF socket type for the sensor?
22:26
intracube
if I remember correctly, it was an intel 386 type?
22:29
se6astian
changed nick to: se6astian|away