Search found 8 matches

Search found 8 matches Page 1 of 1
by NickG
Tue Feb 06, 2018 7:59 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
I sent the email earlier, with two .inf files attached. I wonder if your email system has blocked it because of the attachments. I'll resend with the attachments renamed to *.txt - pls change back to .inf before importing in the application. The reason I know that the issue is not HDCP, is that I ha...
by NickG
Tue Feb 06, 2018 3:26 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Hi Guy, I emailed you two files now (each is an EDID that you can read into, for example, Moninfo), along with some explanation. We have looked into the possibility of hdcp 2.2 issues, but eliminated that. This test set-up uses an upscaling blu-ray player, and it is not protecting upscaled 4k playba...
by NickG
Mon Feb 05, 2018 10:06 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Hi Guy, That is great, that you are able to do similar tests there. Thanks for spending time on this.. We did try this with a different EDID and got a different result. Like yours, it dropped revision 1.4 to 1.3. It always corrects the checksum. But please also see our results (shown in the hex dump...
by NickG
Fri Feb 02, 2018 3:21 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Hi Guy, Don't worry about the refund, we are planning to buy hundreds of these adapters if/when we qualify them. But we know for sure that our issue here is caused by the adapter altering/damaging the EDID. For sure, this is not an HDCP2.2 issue. (See my message above - we already eliminated that po...
by NickG
Mon Jan 29, 2018 4:52 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Update: I just ran the bluray player into a device that does not support hdcp2.2 and it still plays 4k (it is an upscaling 4k player, so this is not too surprising), so I am now pretty confident that the damaged EDID is the root of the problem when the Lindy is in the signal path.

Cheers

Nick
by NickG
Mon Jan 29, 2018 4:17 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Hi Guy, That is a very good point - the blu-ray player might be falling back to 1080p due to lack of HDCP2.2 rather than the damaged EDID. But the EDID is still broken, and (maybe by coincidence) the part that is broken is the vendor specific data block (VSDB) which tells the source about 4k support...
by NickG
Fri Jan 26, 2018 9:40 am
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Hi Guy, We are testing the Lindy adapters on the displayport input of our own video processor. We can emulate any EDID and accept a very wide range of inputs. In this case we are emulating the EDID of a Dell S2817Q. We do this because we are testing a 4k/30 source (Samsung upscaling blu-ray player) ...
by NickG
Wed Jan 24, 2018 5:17 pm
Forum: Audio, Video & Home Cinema
Topic: HDMI to DisplayPort 38146 EDID problem
Replies: 14
Views: 1514
Hi, I have a number of HDMI to DisplayPort adapters, model 38146. They all have the same issue. They appear to be overwriting one bit of the EDID data from my monitor (and correcting the checksum at the end). Unfortunately, the effect seems to be to corrupt an important part of the data. Below, I ha...
Search found 8 matches Page 1 of 1