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AMD: Catalyst 14.3 Beta driver, Thief Patch featuring Mantle/TrueAudio, and fix for VSync out now - Page 12

post #111 of 176
Quote:
Originally Posted by Offler View Post

Ok... I have to re-check the problematic game engine, and try to enable the audio device...

Are you working for ATI?
post #112 of 176
No. I am working for HP in Europe, but I am doing this as my hobby.

Since release of HD 7870 i was focusing on driver-related bug detection. I developed few easy methods to confirm whether its a driver bug or not. For example I found that this bug:

https://www.youtube.com/watch?v=dvEms82lYvc

is related to usage of PCI-E 3.0 graphical cards on PCI-E 2.0 slots. PCI-E 2.1 or older cards are fine... However I discovered it 6 months ago, when Bethesda already announced TES Online so ... nobody ever fixed it.

After about 2 years I am able to reproduce quite a lot of graphical bugs on some random game engines (usually games I purchased). I have here 2 different mainboards, 2 CPUs, and one Nvidia Gtx 650ti just for cross-reference testing. Usually the goal is to confirm if its a driver bug or not.


Most stuttering-related bugs I observed and measured were related to crappy engine or settings. Like... running Vsync-ed Game with two buffers... People on forums like this one were mostly sure that its driver related because the swapped graphic card for Nvidia and the issue with stuttering was gone. I did the same, and then I disabled Adaptive Vsync. And voilá - the stuttering was there, and perfectly repeatable on same engines and same game locations...

Adaptive Vsync is a nice name for "Vsync + Frame limiter".

Frame limiter, forced 3rd buffer or using DWM as "stutter filter" always solved every issue with frametime consistency I encountered.

Since Catalyst 14.x there was the "Hiccup" stutter. Like game is running smoothly for 15 seconds and then it stutters. In my case it cant be harddrive. smile.gif

I havent confirmed the issue you are describing. So I will check the Witcher 2 again...

Edit:
I did some quick checks on Witcher 2, Skyrim and Civilization 4...

Skyrim is still butter-smooth.

Witcher 2 , Ubersampling disabled - Smooth
Witcher 2, Ubersampling Enabled - Little stuttery, its true. 13.12 was smoother.

Civ 4 - Smooth as never before.

To 7stars:
Crossfire is running? if its related to specific actions in game its questionable...
Edited by Offler - 4/4/14 at 10:07am
post #113 of 176
Quote:
Originally Posted by Offler View Post

To 7stars:
Crossfire is running? if its related to specific actions in game its questionable...
no, single card...
specific actions are part of a game...and those are main actions in that game. Questionable? What you mean?
or the dev wants too much from the engine which is not able in D3D11 to manage those things on the screen at the same time or bad code or DX is ATM really a problem about overhead and inefficient multicore usage or bad drivers...
post #114 of 176
to 7stars:

Frame fluctuation is quite normal on PCs. Usually the games are not very optimized, and you guess right that DirectX is responsible for this (at least partially). In last 8 years the best DX based titles were still more and more HW consuming and developers focused on adding effects more than optimizing the code.

If you have PC, it automatically means that you cannot guarantee 60 fps on every game setting - graphics is usually much richer than on consoles.. Game developers are usually optimizing for 30-60 fps, but critical FPS is considered to be under 25.

I agree that such events during gameplay are disturbing, since its causing game running slower and then faster again.

On consoles is this fixed by lower frame rate, lower resolution, lower effects and frame rate is much more consistent. The hardware you have should be able to run game smoothly. This usually mean on 30 and more frames per second.

try 13.12 and you will see if it fixed framedrops.
post #115 of 176
Quote:
Originally Posted by Offler View Post

If you have PC, it automatically means that you cannot guarantee 60 fps on every game setting...
try 13.12 and you will see if it fixed framedrops.
no min 60 fps on a 290 at 1080p ? i'm playing 1080p and if can't keep 60fps in D3D11 in this case, maybe DX is really too bad...or something wrong
and so how someone could play at 4K ? with Mantle only? Mantle really helps at 4K ?
anyway i think they should do a better job with drivers...and devs should find better method in game debugging and testing...have learned the habit of releasing games too early...and then someone shows the decency to patch, someone else leaves everything as is....
I am inclined to think that are software issues
post #116 of 176
Quote:
Originally Posted by Offler View Post

Finally someone who know how to setup things.

Anyways... I observed some "hiccups" even previously on 13.12. drivers... But I agree = such issue is present on current drivers.

To NIberius:
From my experience there is not only single stuttering. Its a "family of bugs"... The stuttering in Skyrim I described is for me perfectly repeatable - and I observed it on AMD HD7970 and Nvidia GTX 650ti (when Gsync was disabled).

Edit: Basically its a game bug, since in vsync + double buffering scenario its good to utilize frame limiter in the engine.

Dude, most of people here are experience users. I am PC user since 386sx and i am not newbie. If we talking something is wrong with these drivers then it is. Do you think i didn't tried fresh install?, this is first thing what i did. I tried almost everything possible solutions including frame limiter to 59 and 60fps, triple buffer via Radeon Pro, in game/CCC vsync, borderless gaming , different OS'es and nothing helps. I switched even RAM, CPU and HDD. And if im not only one with that issue then its definitely something wrong. I am using AMD cards almost 10 years and only this 14.x driver have broken DirectX part. No offense.

Just because you cannot reproduce this issue it does not mean anything. Perhaps this is related to the different configurations. And what about the Power Tune bug? Strange that it also started from drivers 14.1.
Edited by Witwicky - 4/4/14 at 2:50pm
post #117 of 176
Quote:
Originally Posted by 7stars View Post

I am inclined to think that are software issues

When I purchased my HD7970 and later made some comparations with GTX 650ti I discovered that about 50 percent of visible bugs were driver related, and the rest was related to game engines. It took quite a lot of time of testing. When talking about performance thats a bit different discussion. I dont remember any of graphic card manufacturer to claim that some game will be able to run on some specific FPS... It simply cannot be guaranteed when you are combining too many factors.

to Witwicky:
As I mentioned before I dont want to insult anyone. Just asking...

Reproducability is quite important thing. When you can say which setting or hardware combination is causing the issue, you can do better bug reports. And when we are talking about windows, just keep in mind that you have dozens of redistributable dll files which are connected with drivers and game engines. The question is what I did differently ...
post #118 of 176
Quote:
Originally Posted by Offler View Post

When I purchased my HD7970 and later made some comparations with GTX 650ti I discovered that about 50 percent of visible bugs were driver related, and the rest was related to game engines. It took quite a lot of time of testing. When talking about performance thats a bit different discussion. I dont remember any of graphic card manufacturer to claim that some game will be able to run on some specific FPS... It simply cannot be guaranteed when you are combining too many factors.

to Witwicky:
As I mentioned before I dont want to insult anyone. Just asking...

Reproducability is quite important thing. When you can say which setting or hardware combination is causing the issue, you can do better bug reports. And when we are talking about windows, just keep in mind that you have dozens of redistributable dll files which are connected with drivers and game engines. The question is what I did differently ...

Also i dont want insult you smile.gif But put yourself in my and many people situation, recent drivers from 12.11 to 13.12 are stable and 14.X cause stuttering in 90% of games. Should we blame AMD or Windows ? wink.gif

ps. Im sending them regular bug reports, also i talked with Warsam71 and i was clearly explained him all of my issues.

Sorry for my english biggrin.gif
Edited by Witwicky - 4/4/14 at 3:28pm
post #119 of 176
Thread Starter 
Quote:
Originally Posted by Witwicky View Post

Also i dont want insult you smile.gif But put yourself in my and many people situation, recent drivers from 12.11 to 13.12 are stable and 14.X cause stuttering in 90% of games. Should we blame AMD or Windows ? wink.gif

ps. Im sending them regular bug reports, also i talked with Warsam71 and i was clearly explained him all of my issues.

Sorry for my english biggrin.gif

Yeah, those dll flies are tricky and very important. I'm not in development, but I've learned they are essential to drivers.

I have been in contact with Witwicky for the past few days :-)
post #120 of 176
Same here with R9 290X and 14.X. They cause ugly stuttering in games, making them unplayable.
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