Samsung

Appreciate the input. In this case, both devices (PS5 and Q90T on port 4) both support HDMI 2.1. It's odd that turning on Game Motion Plus, which is adding latency, ends up helping the problem. I suspect it's that Freesync turns on with Game Mode, which I've seen other problems with before on the Q90T. PS5 doesn't support VRR yet (it will in a patch), so my guess is this is causing sync issues.   So I can probably not use Game Mode for now (I think it's just turning off things I already turn off anyway), but it still seems like a Game Mode bug. So I'm hoping either Samsung can correct it and/or that Game Mode just works when PS5 enables VRR.   I found a couple other posts that describe the same issue with other devices:   https://www.avsforum.com/threads/2020-samsung-q90t-owners-thread-no-price-talk.3138076/page-104 - "I  have horizontal lines that constantly scroll up the screen"   https://us.community.samsung.com/t5/Qled-and-Frame/q90t-game-mode/m-p/1384212 - "on game mode there are horizontal lines that move up constantly" ... View more

65in Q90T ... View more

For games that can even achieve 4K/120Hz/HDR, the lack of VRR on PS5 (which is supposed to be patched later) is also probably limiting right now, since Vsync is heavy. ... View more

I would really like an easy answer to this, too. I have a PC connected to my Q90T via HDMI and optical cable from the PC to my MS750 soundbar (with rear speaker kit). I would like to start using Arc for my other devices, but I can't since it overrides optical (unless I go through a few menu options every time to switch Anynet off).   It would be great if the TV could have a per-device setting to remember what I want here (either that Anynet should be disabled or that my Sound Output should be None (externally controlled).   Some reasons why I would like to have both the ARC and Optical available on the soundbar: - It's a feature of the Samsung soundbar to be able to use both options, and it's not great that my new Samsung TV now limits a capability that I had. - Going through several menu options (to disable/enable Anynet) every time I want to switch devices is a bad experience. - I need to use optical on a PC connection to make use of the surround sound offered by the Samsung soundbar and rear speakers. Often games on PC don't output in native Dolby / DTS but multichannel PCM. Nvidia cards do not do Dolby Digital Live conversion (so I can't do it over HDMI), but there are sound cards that will over optical. So I haven't found a better option than to use optical with Dolby Digital Live for my PC. - Right now I can have my other peripherals besides PC go through the soundbar and then to the TV (and not use ARC), but this is not ideal. First there is the annoying 5 second notification that I should use ARC. But, more than that, when next gen consoles come out, I want to make use of the HDMI 2.1 slot on my Q90T. I can't do this if I go through the soundbar, so I'll want to instead connect to the HDMI 2.1 port directly and then use ARC to output sound to the soundbar. At that point, I'll keep having the annoying conflict between ARC and optical on the Soundbar. ... View more

Yup, started happening to me again, too. So factory reset did not fix it. Same thing. After being in game mode for awhile, the screen will suddenly dim until I do something like switch Game Mode off and on or the Local Dimming settings.   Edit: Actually, before the factory reset I was getting this issue while watching Netflix on my Xbox, and playing Last of Us 2 on PS4. After the reset and firmware update I only had it happen while playing Last of Us 2 on PS4. Another person I know with the same TV has also only noticed it while playing Last of Us 2 on PS4. So I can't tell if the issue was fixed (only an issue with the game or PS4), or partially fixed. ... View more

Just to follow up, I haven't had the first issue (whole screen dims) since doing the Factory Reset. I haven't had the second issue (checkerboard dimming) since I toggled Game Mode (even after turning it on again). The third issue seems like it was fixed by firmware update 1301.5 and was referred to in other posts as inverse ghosting.   Edit: I've unmarked this as a solution since other people are still having problems with the screen dimming (just hasn't happened for me again). ... View more

I've had my Q90T for just over a month and started having some odd dimming and chromatic abberation issues. Three different symptoms and I don't know if it's recent firmware related (I'm on 1115) or hardware. This didn't happen in my first few weeks using the TV. I've figured out workarounds for some of these.   First issue: While watching any content, my screen would instantly dim (whole sceen dimmer). I have all Intelligent Mode and Eco Mode settings turned off so it shouldn't have anything to do with Ambient Light detection. I have Game Mode on, but Dynamic Black Equalizer set to zero and Game Motion Plus turned off. I have Local Dimming Set to High. What I did notice is that when the screen suddenly dims, it's the same look as if I had set Local Dimming to Low. Sure enough, if I switch to Low, there is no change. But when I switch back to High or Standard, my screen brightens back up to what it was before. But after a few minutes... it would dim again unless I toggled the Local Dimming settings again. Now for this issue, I did a Factory Reset... and it doesn't seem to be happening anymore (even now that I'm back on latest firmware). So I'm wondering if the latest firmware broke things when applied over previous firmware updates.   Edit: Probably a good idea to specify what TV model, peripheral, application, type of content (resolution, frame rate, HDR) that you have the issue with if you can. Before I did my reset and firmware upgrade, I was getting the dimming issue on multiple devices. Watching 1080p content on Netflix via Xbox One would have the issue, sometimes randomly with my PC, and also while playing on PS4 (specifically playing Last of Us 2). After the reset and firmware update, I actually have only noticed it now on PS4 (again playing Last of Us 2) and sometimes while playing games on PC. A friend of mine with the same TV never had the issue, except when playing Last of Us 2 on PS4.    Second Issue: (edit: I haven't had this again since toggling game mode off and on): I'm getting what seems to be Local Dimming artifacts (checkerboarding). It doesn't matter whether my Local Dimming setting is Low, Standard, or High. When scene content suddenly changes it is very apparent. I get a grid of darkened squares all over my screen that quickly fade to the correct color (it's like the dimming processing is delayed). It's like a 15x8 grid of squares. This one is very bad and it doesn't take much  to make the checkerboarding appear (I can move my camera around quickly while playing a game and I'll see it). Interesting thing I ended up trying out was to turn Game Mode off... and it stopped happening. Interestingly, I turned Game Mode back on, and it still is not happening again (don't know if that will last). Didn't matter what input source I had (this could happen on on the Samsung blue screen while the input isn't found).   Third Problem (edit: haven't had this since the firmware update to 1301): While playing on PS4 I was noticing a lot of chromatic abberation while moving my camera around in a game. I turned Game Mode off and the chromatic abberation goes away.   So seems like maybe some issues with Game Mode? ... View more

I think I may have had issues with the 1115 update, btw , on my Q90T. My local dimming was doing weird things. Occasionally it seemed to be switch off (or to low), even though the setting was still on Standard or High (whatever I left it as), until I switched the setting again. Symptoms were that after a few minutes of running, the whole screen would suddenly dim (in the same way that would happen when I switched Local Dimming to Low). Then there were other weird issues on uniform colors (especially blue) where I could basically see the dimming array creating a checkerboard of darkened areas on the screen that would quickly fade to the correct color. I don't have any Intelligent Mode or Eco Mode settings on either so it wasn't related to ambient light.   I did a factory reset and things are working perfectly now for me (and currently on update 1115 again). So I don't know if the firmware upgrade didn't do well on top of previous firmware updates. ... View more