[PC] Vanilla Skyrim Legendary Edition - Odd HDR like smooth flickering between light and dark while looking slowly. Please help me identify and fix this.


[EDITED 3rd Oct 2014]

Important Update: This is not a TV problem at all, but a problem with setting up my card/drivers etc. somehow.


##System Specs

  • i5-4460 3.2GHz

  • 8GB RAM (G.Skill Ripjaws X DDR3-1600 9-9-9-24)

  • Gigabyte GA-H97M-D3H Motherboard

  • Sapphire Dual-X R9 280X

  • Windows 8.1 Pro x64

[EDIT 1]

  • Monitor: Samsung 41" HDTV (Model: UA46F5500)

##Skyrim Details

  • Legendary Edition

  • High Resolution DLC installed

  • Creation Kit installed but never started.

  • Deleted local content and did a fresh download just hours ago.

##Mods

None whatsoever.

##Launcher Settings

  • No ini tweaks

  • Default selection was Ultra settings.

  • Anti-aliasing: 8 samples.

  • I changed the resolution from 720p to 1080p.

  • I also reduced everything except Grass Fade to about half-value in the Advanced Settings -> View Distance tab. Everything else was at the default settings. I also tried to reproduce the problems with the Ultra defaults and succeeded.

[TV Settings]: Posted as a self comment over here.


##Play Details

Playing to create a pure vanilla save I can revert to if I hit problems while modding. I got stuck between rocks while escaping from Helgen and had to re-load an auto-save. I don't see how this is relevant, but I've noted it just in case.


##Problem Description When I started the game, I noticed some minor shadow flickering (usual) during the carriage sequence upon getting off, I noticed that even the slightest movement with my mouse would produce a fast, irritating, but somehow smooth alternation between light and dark almost throughout the screen. It was on the ground, on buildings (pretty sure), even on Ulfric Stormcloak! I saw some similar flicker inside Helgen Keep too. Anyhow, I did notice that longer movements of the mouse, and automatic movements of the camera did nothing. I assumed that this was because the HDR algorithm (the one that makes it seems like our eyes adjust to light) was somehow tied to mouse movement and rest and that was malfunctioning/functioning on steroids. After testing and creating the video below, I'm pretty certain tha t this is not the case, though it does look pretty similar at times. I'm quite confused and irritated that this is occurring on my new high-spec rig! :(

[EDIT 1]

Perhaps my earlier description of the flicker as smooth is just incorrect. Watching the video repeatedly makes me think that the flicker is just as rough as ever, but it's just different. If you can see the phenomenon yourselves, please feel free to decide. As an additional correction, I have to say that the movements producing the flicker are not slow so much as small. Small mouse movements, ones that don't last long are what produce it. I tend to think this is the same as small camera movements...

[EDIT 2]
The effect seems to be most apparent in darker regions and with more details textures (Like mud, rocks and roots, or the ground near the edge of a boulder). In a brightly lit area, with neat (say, pavement textures) I couldn't notice it.

[EDIT 4]
Testing has led me to believe that this invisibility in bright regions might (not absolutely certain folks) be due to the current settings on my TV set.**


##Videos Showcasing the Problem

These videos are recorded using FRAPS and uploaded to YouTube. The problem isn't visible in these videos:

  1. http://youtu.be/4Fz0oiLouFQ

  2. [EDIT 2]: https://www.youtube.com/watch?v=hCiYV3axH2g

[EDIT 4]:
These videos are recorded using my cellphone and the problem shows up on other screens as well:


##Research and Testing (thus far)

  • I could re-produce the ground-flicker that you see in the video even at the Ultra defaults. Framerate is at 60fps, which is really nice.

  • I noticed one instance of a shadow flicker/jump in-game that I could not reproduce. This may be the well-known shadow bug (I'm not sure). I'm noting it just in case this is a related symptom.

  • Google yields many results for flickering bugs, but none that fit my description. I'm unable to find the right keywords to search. I did try though.

  • I checked UESP, The Elder Scrolls wiki, and the sidebar link here to see if the bug fell under any of the common bugs or problems.

  • A quick scan as well as find-in-page tells me that the Unofficial Patches do not fix this problem.

[EDIT 1]

  • The flicker wasn't visible on an Nexus 5 1080p screen when I watched the youtube video. There was absolutely no flicker, none! 'twas beautiful!

  • I went ahead and tried this on a 1366x768 Dell Inspiron N6010 Laptop screen. I tried setting yotuube's resolution to both 720p and 1080p and always watched at fullscreen. No problems at 720p, and at 1080p, I saw some odd flickering different from before. This second one looked like bad anti-aliasing and I put it down to the downscaling factor. If I'm wrong, do let me know.

  • Next, I tried casting the same video to my TV screen from the laptop, just for the heck of it and could not spot much, if any flicker. I tried playing it through the Smart TV Youtube App, and almost no flicker. Just a reminder; these are under the default settings for movie mode on my PC where sharpness is way down. I'm not sure if that mode setting applies to the Youtube App - pretty sure only a part of the settings apply or something...Looks like something about the HDMI input and settings are causing the problem. I don't know, and I'm quite annoyed.

  • I tried turning off various image processing features, turning on and off game mode, turning the TV back to defaults, but none of those really changed how the video looked on my screen. I did not test in game at all for this part.

  • Turning the Sharpness down to zero (from 80 - reduced in steps) drastically decreased the visibility of the problem, but even so, I could see a flicker.

  • After the previous step, I tried dropping the contrast in stages. It took till Contrast - 40 to see it vanish, but at this point, the image was terrible and I think that the contrast was simply too low to see the flicker.

  • I'm working on HDTV calibration and setup right now so I can have a somewhat standard setting as a baseline. I'll test both the video and the game (youtube, original recording, previous game settings) and see if it remains after that. The problem still remains a thorn in my side. :|

[EDIT 2]

  • Important Note: Fiddling around with my TV settings let me almost eliminate the problem in the video playback. However, the problem is very visible and very annoying in the game.

  • I've done a little calibration for white levels and black levels using the Lagom images. I even tried eyeballing it in bright and dark areas of a game, but ended up using the lagom images instead.

  • I've tried the game at different resolutions.

  • I've renamed my HDMI input to PC making my Samsung TV recognize that and turn off a bunch of options and fit the image to screen without selecting Picture Size = Screen Fit besides. The overall effect is good.

  • I've further ensured that all post-processing options that I know of have been turned off.

  • I can't use Game Mode when the HDMI input is called PC. However, Game Mode didn't help going by my earlier tests.

  • I set Colour Temp to Warm 1 instead of standard, picture mode is standard Brightness and Contrast at 40, Sharpness at 5, and Backlight at 12/20. That's what really reduced the effect or eliminated it in my youtube videos.

  • My 1366x768 laptop screen and 1080p Nexus 5 screen don't show the effect when I play the video from youtube.

  • The problem is also visible in The Witcher 2 (same, dark regions, ground). This almost certainly makes it a setup problem. I have no idea where to go from here, sadly. NOTE: The problem is almost certainly a TV/PC setup issue rather than a Skyrim issue. I'm still a little bit uncertain, but the more things proceed, the more I'm convinced of it.

[EDIT 3] Before Crashing

  • Similar Problem: http://forums.steampowered.com/forums/archive/index.php/t-2543519.html

  • No solution through settings for The Witcher 2. Drastic reduction through settings Colour Temp: Warm 2 Sharpness: 0 Contrast: 85 Brightness: 54 for Skyrim. Some of these numbers are from calibration with Lagom and/or AVS HD and some from just fiddling and going away from defaults.

  • Updated firmware - this may have failed though it seemed to complete normally. I no longer have the Software update option on my TV. This is something to investigate later. All in all, this didn't bring any solutions.

  • Tried turning on digital noise filters to no effect.

  • Tried renaming HDMI input to Game instead of PC - no effect.

  • TODO:

    • Try recording the TV with an external camera to highlight the issue. Add annotations to point it out. Maybe ask around on r/killyourconsole and r/techsupport even more? No annotations added. Asking around now.

    • Switch to the HDMI/DVI input on the TV I tried switching to HDMI 3 also called HDMI/DVI. This is the port indicated for use in the TV's e-manual. I could try switching to HDMI 1, but I believe that would be a waste of time.

    • Consider the very unlikely theory that two rendering engines have similar limitations. I'm going to see if I can't get a monitor here and use it to test. I may not be able to get a full hd one though. Still, I think it's worth a go. [EDIT 4] Will keep this in mind.

[EDIT 4]


##Final Request/Questions

Please help me:

  1. Identify if this is a problem. [EDIT 4] It is a problem. :/

  2. Help me solve the problem.

  3. Understand what the problem is, what it's called and what causes it. [EDIT 4] The closest name I coul find is texture flashing. The cause is almost certainly the HDTV.

Thank you for your time and assistance.

Posted Sep 28, 2014, 8:49 PM UTC · edited

423
antman100•

Strange. I don't see any ground flicker in your video as you described. I see the shadow flickering by the rocks on the right and on your character. Perhaps there is a setting on your monitor that performs some kind of image improvement based on image content? Go view your video on someone else's setup and see if it flickers on their setup.

2
ohmyjod•

I can see the ground flicker on my setup. In fact, I have the same issue on my skyrim, but I have STEP:Core and a few other mods installed, so I assumed the issue was caused by one of the LOD/texture mods. No amount of tweaking fixed it for me though.

It's interesting that you can't see the effect. I'm not sure its an issue with the monitor though. I'm running a Lenovo Y510p with a 1080p screen.

EDIT : I checked the YouTube video on 1080p res, the ground has no shadow issues when I go fullscreen but I can see the flickering in the default view. The flickering on his character's helmet is still there though.

2
antman100•

The whole screen effect might be related to the "sharpness" setting on a monitor, (or video software?). This setting makes details stand out by increasing the contrast between sections. So if it is set too high and there is a lot of varying detail, the amount of image adjustment may change from small angles and thus you get different brightness results from frame to frame. Typically, when calibrating monitors, the sharpness setting should be "neutralized" so that these image enhancements are not introduced. (As for self shadowing flicker, from what I've searched so far, it appears to be a general issue with no ideal solution.)

2
code_eleganceOP•

My Sharpness is adjusted to 50 on my HDTV currently. Maybe I should have it at zero? I'll try a full display calibration and then post the results. What you say makes perfect sense. :)

antman, the self-shadowing flicker you speak off is the problem on the rocks, right? That issue has been around forever, though I haven't cared since I was playing on a low end laptop for a long time.

Thanks again for the help.

2
code_eleganceOP•

Wait! That's odd. ohmyjod, the video at 1080p doesn't show any flicker whatsoever? Not even non-shadow flickering? Also, it isn't exactly a shadow flicker I am describing, so it's odd if you could see a shadow flicker. I'm a tad confused.

2
code_eleganceOP•

I tested it out on my 1080p phone screen, and I still see the ground mildly flicker, but I don't see the light and dark effect. I haven't been able to test on other screens yet, but I did experiment with my TV's settings. I can't seem to make it go away in the video, even with Game Mode on and a bunch of features off! Thanks for pointing me in this direction. I'm going to attempt display calibration, but are there any more concrete steps to take?

EDIT: I'm updating the original post with my steps as I go. Do check that out if you return to help. I really appreciate your taking the time.

2
antman100•

You're welcome. Glad to provide some help. Give "Sharpness" a try too. Usually it could be set to 0, but some TV's will actually start making the picture extra blurry when lowering Sharpness, kinda ironic as the original source is not blurry.

There is a whole swath of calibration test screens for your PC setup here: http://www.lagom.nl/lcd-test/black.php

I'll write back more later on.

2
code_eleganceOP•

I've added yet another EDIT with more points. I've used the lagom images for white levels and black levels. Even with sharpness at zero I couldn't pass the sharpness test, so I have to assume that the lagom tests don't work for HDTVs :( I've also downloaded the AVS HD 709 though I haven't started that. I'm unsure that helps me calibrate the TV for the PC gaming situation. I also got the THX tuner app for Android which is good for movies. I can't change inputs or use the app for a couple of days because I'll need some assistance taking the TV down from the wall. If you could help me get Skyrim running at it's optimal best, I'd be extremely grateful. I'll be here quite a while tonight, so I'll be able to respond if you're back. :)

EDIT: I've added a lot of info from my day-long debugging session. Ultimately, it may just be that my TV really sucks, or even that Input Lag is so bad that it produces an odd flicker. I don't think it's lag because I'm not "feeling" a large lag. I'm also considering the theory that this is something to do with rendering limits, but I somehow doubt it. Nothing interesting has happened so far except an odd artifact popping up in TW2. I'm calling it a night friend. If you have any thoughts, do let me know.

2
antman100•

Have you tried turning off these settings on your TV: Dynamic Contrast and/or LED Clear Motion? Or both? (Also... does your TV have Motion Lighting? If so, deactivate it.)

Regarding calibrating to "Warm" colors. This is very subjective. I would recommend to keep it at whatever "normal" is; especially since you are playing a video game. (aka D65, or 6500K). (Color temp should not be causing you the issues described.)

Your TV is pretty new, so I wouldn't say it sucks. And it's is a 5000 series Samsung. It should be rather awesome.

2
code_eleganceOP•

[EDIT 4]

##TV Settings

Current values bolded. Several combinations tried, almost all for HDMI 2. I've also tried the defaults for Standard and Movie Picture Modes.

[Source + Tools]
The renaming really only causes me to loose options. This is congruent with the idea of turning all post-processing off. Note that renaming a source to Game does not turn on Game Mode. Pretty sure I've tried Game + Game Mode though. Another thing to note is that when I rename to PC, I cannot turn Game Mode on.

  • HDMI2 -Rename-> HDMI2:--- or HDMI2:PC, or HDMI2:Game or HDMI2: DVI PC (No effect though some settings become unavailable. I've tested mostly with PC, though I have tried out --- a lot for settings fiddling as well. The others, not so much.)

  • HDMI3/DVI -Rename-> HDMI3/DVI:PC or HMI3/DVI:Game or HDMI3/DVI:DVI PC or HDMI3/DVI:--- (Bulk of the testing done with the PC renaming.)

[Menu > System > General]

  • Game Mode: On/Off (On/Off doesn't seem to help).

[Menu > Picture]

  • Picture Mode: Standard/Movie (the second one was used for testing the source without any name i.e. --- and was picked because it is almost certainly the one with best colour reproduction.)
  • Backlight: 12/13/16/17 (Different values were interesting, but really didn't do much except compensate for low contrast settings because brightness goes down in those cases.)
  • Contrast: 40/60/80/95 (Brightness up. White detail down. Some level of hiding the problem esp. in videos)
  • Brightness: 40/54 (I've tried sliding this up and down quite a bit in conjunction with other things. No real fix, though settings around 50 seem to hide some of the flashing in Skyrim - question of detail?)
  • Sharpness: 0/10/20 (I slid this one around a bit using some fo the testing patterns. I tested mostly with 0 for the flashing, though I have tried 10 and 20 as well.)
  • Colour and Tint (G/R) settings unavailable when HDMI source is named PC. Otherwise, left at defaults.
  • PIP off

[Menu > Picture > Picture Size]

  • Picture Size: 16:9/Screen Fit (Note that Screen Fit was required for testing outside of PC source renaming because the image went outside the TV borders. This is underscan, right? In PC source renaming, 16:9 works fine. It seems that naming the source "Game" turns on Screen Fit by default, but that could also be because that's the last value I used when I used that renaming.

  • Picture position: Never messed with this. Unavailable in Game source renaming.

[Menu > Picture > Advanced]
A lot of these options are simply unavailable in Game Mode, PC input renaming and even Game input renaming, though I haven't checked the differences between the available ones carefully. These settings are left at their defaults mostly, except for the post-processing ones, which are always turned off.

  • Dynamic Contrast: Off (disabled) (this one is turned off in non renamed sources as required.)
  • Black Tone: Off (Disabled) (Turned it off whenever it was on)
  • Flesh Tone: 0 (Disabled)/ Left at zero normally()
  • RGB Only Mode: Off (Disabled) (Useful when I need colour filtering. I've always left this off.)
  • Colour Space: Native (disabled)/Auto (I've not really changed this one around.)
  • White Balance: Left Untouched
  • Gamma: 0/-2/+1 tried. Not really able to fix this for the Lagom.nl tests. No real fix either˙
  • Motion Lighting: Off (Disabled) (Turned off whenever it is not disabled/available)

[Menu > Picture > Picture Options]

  • Colour Tone: Warm 2 /Standard (default) (This is the D65 colour temperature afaik.)
  • Digital Clean View: Off (Disabled) (Turned off when available.)
  • MPEG Noise Filter: Off (Disabled) (Turned off whenevere available)
  • HDMI Black Level: Normal (Disabled) (I haven't seen this one enabled and it has always been left at normal.)
  • Film Mode: Off (Disabled) (I haven't seen this one on, and if it was, it was turned off.)
  • Analogue Clean View: Off (Disabled) (Turned off when required.)
  • LED Clear Motion: Off (Disabled) (Turned off whenever available.)
1
antman100•

It might be motion blur? I tried on my machine, but couldn't not repro the issue. I'm thinking it might be worth trying.

https://answers.yahoo.com/question/index?qid=20111216154608AAbsvGo

Have you tried your setup on someone else's TV yet?

2
code_eleganceOP•

Hmmm...I doubt this one is easy to reproduce without the same T.V. m'friend. I can test this on a lower resolution TV either tonight or tomorrow. I'll also be able to test using a different HDMI cable as someone has suggested. Not sure if I will test the HDMI 1 source though...

In TW2, Motion Blur is enabled in the settings tool, but it isn't working as far as I can tell. This is a known bug in the configuration tool. Given that, I doubt it's the blur. Still, no harm in testing that for Skyrim. I'll go ahead and test out the idea from the Yahoo Answers page and get back to you.

I've uploaded the sample videos from Skyrim now, but I haven't done too much more since yesterday night. I have had no luck in naming the problem yet, so I'll continue calling it Texture Flashing and try cross posting it. I'll keep you up to date, and I'll keep this thread up to date, and hopefully I'll be able to play Skyrim without driving myself crazy soon. :)

2
antman100•

Another thought, but there may be nothing that can be done about it: pixel response time.

Try this test out from the lagom site:

http://www.lagom.nl/lcd-test/response_time.php

and press the "start test" button.

Also try the "response time test-ghosting" further down the page.

Some displays allow you to change the pixel response time, but I haven't seen that feature on TVs.

Please let us know how the tests go. Thanks!

2
code_eleganceOP•

##Update 1

  • [Samsung SyncMaster 740N VGA Monitor] connected to my R9 280X via my DVI-VGA adapter (DVI-I 24 + 5 pin) shows the same flickering in both The Witcher 2 and Skyrim!

  • I had thrown out the data from another monitor with the same setup, but it must now be re-considered. The problem is not the TV.

  • I'm attempting to get another HDMI cable, a 1080p monitor, and a new DVI adapter to rule things out completely by testing. Hopefully I can access those tomorrow.

  • I'll attempt to re-test with that other monitor as well.

  • Motion Blur doesn't seem to be the issue:

    • SkyrimPrefs.ini already contains:

[BlurShader]
bUseBlurShader=0
* The Witcher 2 Motion blur isn't applied correctly. Nonetheless, I both turned it off in the configuration tool and checked that it was off in the .ini file. I then tested and found no difference.

  • I don't mean to be rude, but I don't believe that motion blur is the correct explanation at all. I think the problem with that theory is that it will blur everything, and will happen regardless of texture or light and dark. Now that we've ruled it out, I intend to test out other game features carefully.

  • Tomorrow, in addition to everything else, I intend to try and test turning on/off various game features one by one in an attempt to isolate the cause. I am partway through reading the catalyst tweak guide, and I shall prioritize that as well. Maybe it is something in my driver settings? I'll also try and get Dark Souls working on Win 8.1 - this is a bit difficult - but if I can do it tonight, we'll have a third game engine for comparison should we need it.


##Original Text

I went over all the tests on that page just now. It took me quite a while. First, I had to figure out my Camera and ISO/Aperture/Shutter-speed settings and what they were/what they meant (kinda fun!). Then I actually did the tests (could do better, but at least they're done now.) The album in its raw form is here for you to see if you wish.

I will annotate the album and attempt some calculations once I fully understand the tests (been reading, not sure I'm a hundred percent on them) and once I find the Input Lag for my old Samsung SyncMaster 740N. Honestly, all I know is that it has an 8ms response time. I apologize for the slow responses today. I haven't been focusing all my attention on this for the past day or so. I'll have more time tomorrow, and I fully intend to crack down on it. Even before that, I think there's enough data for you to take a guess on some thing right away.

I have tried the first flashing squares test, but I don't know what to make of it. I'd rather do it again with another person to help figure out which color is where and then bring you the results. No input there, except that the response seemed to vary greatly with the lower elements in the table showing closer to "0" performance.

I am not convinced this is a pixel-response thing (though this may be due to my ignorance) because if it really is such an issue, why is it so much more visible on detailed ground textures and that too in the dark. I tend to think we haven't fully understood the issue, unfortunately. I do agree that it might be unsolvable, but I've at least got to make an attempt.

As a final note, I'm making attempts to get another monitor and cable to try and test this setup on a different TV (720p, methinks can't access anything else, sorry), and also trying to get hold of a different monitor. I haven't finished with the motion blur test or run a Skyrim test on the smaller monitor. I'll run those and add an edit to this post. detailing my luck. The original post has almost hit the limit.

Once again, sorry for the delays, I'll be back at it full force tomorrow.

1