topic Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled in TV

Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

IIGrayFoxII — Sat, 30 Nov 2019 09:53:32 GMT

Hi All,

I'm having some fun and games with my Q90R having connected it up to my Windows 10 desktop PC (via NVIDIA 1080GTX HDMI 2.0 port). I'm currently trying to get HDR working from the PC on this screen at any resolution 1080p 30Hz/60Hz, 4K 60Hz, but there seems to be what I can only describe as some sort of handshake type issue between the TV and the PC because as soon as I enable "Input Signal Plus" on the HDMI port at the TV, the TV loses signal and my primary monitor flickers continously as it detects the TV and then drops connection. This problem also persists whilst using only the Samsung Q90R too. As soon as "Input Signal Plus" is turned off, it all works just fine, only I cannot enable HDR at all. It works flawlessly at 4k 60Hz, 1080P 120Hz but this is baffling m.

I've tried a variety of short HDMI 2.0 cables which I know work from my PS4 Pro and XBOX One X (1.5m - 2m length), and have tried using all of the HDMI ports from the One Connect box, but the problem persists. I do have a HW-Q70R soundbar also connected to the One Connect box with ARC enabled, and will look at eliminating that shortly.

If anyone else has had a similar problem and found a way to get HDR working via Input Signal Plus without the Windows PC having a total head-fit and found a solution they could share, I'd be most appreciative. I've had a search on the forum and spent a couple hours on google but didn't turn up a whole lot.

Kind regards.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

CarloL — Sun, 01 Dec 2019 13:50:25 GMT

Hey @IIGrayFoxII! The best thing to do on this would be getting in touch with the Samsung AudioVisual team. You can contact them on this number: 0333 000 0333 .

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Foxlightning — Wed, 04 Dec 2019 22:22:35 GMT

I'm having this exact same issue

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Sockless — Mon, 09 Dec 2019 19:50:46 GMT

Same here, Q90R connected to a Asus 2070 Super Dual Evo... Connection gets lost in windows when enabling input signal plus, it works during post. Windows resolution is set to 4k 60Hz.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

IIGrayFoxII — Mon, 09 Dec 2019 20:03:53 GMT

Just some additional feedback for others also experiencing this same problem. I spent about 3 hours on the phone with Samsung tech support who ran a full suite of tests on my TV and found no particualr issues with it. Their technical knowledge was somewhat disappointing, but I suppose not unreasonable for a typical call centre setup and their tests were reasonable. I was able to rule the PC out as a problem as it connects to my Sony and Panasonic TV sets in full 4K HDR glory without any issue what so ever.

I also took it upon myself to buy a variety of HDMI 2.1 (48 Gbps) cables which also made no difference to this problem. I have however managed to find myself a less than ideal workaround in the meantime by usinig a usb-c to hdmi 2.0b adapter which at least now enables me to send a 4k 60Hz with HDR signal to the TV set whilst Input Signal Plus is enabled.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Foxlightning — Mon, 09 Dec 2019 20:32:34 GMT

Thanks for the info, Sadly my graphics card does not have USB C. At least it's good to know it's in the TV. I have been back and forth on this forum and Nividia with no luck.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Joshstevo88 — Sat, 28 Dec 2019 23:58:43 GMT

Id like to add my name to the same issue. My tv is the RU8000. Have tried with a gtx 980 and recently a 5700 xt. The AMD card handshakes slightly better, but still loses connection. When i first encountered the problem samsung send a technitian and we discovered the input signal plus problem and i was ok with no hdr. Now i want hdr its bothering me again.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

CarlH — Sun, 29 Dec 2019 20:06:31 GMT

HDR on PC's is very tempramental and depends on the game supporting it too. What version of Windows are you all running? Are the games using Direct X12 too?

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Foxlightning — Sun, 29 Dec 2019 20:18:21 GMT

It should be able to display desktop in HDR just as my regular HDR monitor, aparently this is just something this TV does with NVIDIA cards from what I have read from others with this issue.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Joshstevo88 — Sun, 29 Dec 2019 22:35:12 GMT

Windows 10, latest version. All drivers up to date. As i said with my post have tried both nvidia and amd cards with the same issue. Its 100% the "input signal plus" setting as it works with that turned off (just no hdr). But when its on, the tv and pc struggle to handshake and the connection drops in and out every few seconds until it decides it wont work at all.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Foxlightning — Sun, 29 Dec 2019 22:37:07 GMT

Yep this is the exact problem...

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

IIGrayFoxII — Mon, 30 Dec 2019 09:24:29 GMT

Hi @CarlH. I had experienced the problem as soon as input signal plus was enabled whilst viewing the desktop. HDR hadn't even been enabled on Windows at that point as this option is unavailable within windows until input signal plus is enabled, putting this into a chicken and egg type of problem. It seems that the others also reporting this same problem are also falling foul to the same issue. I had a benefit of having another HDR capable TV which I could use to rule out my pc setup, and have been able to work around the issue using displayport over usb-c and a hdmi 2.0b converter, but the problem is still there for me if connecting directly with hdmi. I've also seen others have a similar problem and managed to get around it with a hdmi extender between the TV and pc connections.

It's not specifically a gaming issue but a display setup problem. This is with the latest build(s) of Windows 10 during every one of my own tests, along with the latest nvidia drivers as well.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

matberg — Tue, 07 Jan 2020 05:18:17 GMT

Exact same problem for me with my Q70R !

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Andremi — Thu, 09 Jan 2020 11:35:06 GMT

I also got caught struggling with this problem last night. (Q950R, WIn10, Nvidia. Latest TV firmware, all new drivers.) Really annoying to have the screen just go black.

Thankfully I managed to notice that the settings that were being automatically 'optimized' were in the 'external device' menu so I manged to get the picture back by turning off 'Input Signal Plus'. However I'm stuck with no HDR now. I will try again today with a HDMI switch between PC and TV to see if that makes any difference.

I really hope Samsung can fix this as fast as possible with a firmware update.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Joshstevo88 — Wed, 29 Jan 2020 09:41:31 GMT

New firmware today 1351.3 - still no fix. Some people reporting other issues with tv netflix dobly etc. No new issues for me. Still input signal plus problem

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Andremi — Sat, 01 Feb 2020 13:53:50 GMT

Still on 1335 firmware version here. Guess they roll out differently in different parts of the world. Sad to hear that they didn't fix the issue though 😞

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Neoghost13 — Thu, 13 Feb 2020 08:58:14 GMT

Hi do you find any solución guys! I have the same problem with gtx 1080 and Samsung ru 7405. The only thing i Discovery is if i use a display Port adapter to HDMI i can use HDR and actívate but imposible with HDMI cable

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Foxlightning — Sun, 16 Feb 2020 02:45:15 GMT

Sadly nothing yet

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Eldreus — Tue, 10 Mar 2020 14:53:37 GMT

"Handshake" to this post. Really hoping it's an issue that can be solved without a workaround in the future. I'll also look into an HDMI switch in the meantime. C'mon Samsung.

Re: Q90R No Signal from Windows 10 PC with Input Signal Plus Enabled

Andremi — Wed, 11 Mar 2020 12:11:57 GMT

Sadly It made no difference for me when I put an HDMI-switch inbetween. This is taking kinda long. I've had my TV for almost 5 months and no fix yet 😞