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Input lag spikes
Hi everyone,
I have discovered very strange issue with input lag and I'm out of ideas. The thing is that during gaming I started noticing random keyboard lag spikes. I'm not talking about constant input lag when v-sync is on for example. There are moments when my keyboard stops responding. For example sometimes when I hit a key, the game is not registering that for not more than one second. Sometimes when I release a key the character still moves in the last direction before stopping etc...
I tried reinstalling windows, reseated graphics card, cleaned graphics card, checked temperatures (nothing major apart from my 690 going up to 90 degrees while under full load while playing crysis 3, in other games it doesn't go above 81), tried new and old drivers, changed some power management and keyboard settings, tried playing the game with 1 pre-rendered frame... nothing really helped.
It happens in more than just one game, usually when the scene is graphically intensive and my fps is lower than 60. I'm not really sure but it could be also happening while not playing games - browsing or just going through folders and mouse could be also affected or I'm just going nuts. Any advice please? Thanks
My spec:
aurora r4
intel i7 - 3820, 3.6 ghz
8gb, 2133mhz
gtx 690
soundblaster x-fi xtreme audio
bios: A05
NataliaatAW
2 Intern
2 Intern
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835 Posts
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March 6th, 2013 13:00
That can happen on some games when enabling VSync, this article explains it very well:
www.tweakguides.com/Graphics_9.html
Tesla1856
8 Wizard
8 Wizard
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17K Posts
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March 6th, 2013 14:00
What keyboard are you using? Try another.
Connect straight to back panel USB 2.0 port (not 3.0 port).
Are you holding down keys or pressing a bunch at once where you might be running into "key scan-line ghosting issue"?
trics22
7 Posts
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March 6th, 2013 14:00
It happens with vsync turned off as well
trics22
7 Posts
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March 8th, 2013 11:00
I have a generic dell multimedia keyboard model: SK-8135 always connected to back panel usb 2.0 port. I also tried Saitek Cyborg keyboard but the same thing happens. I think it's less frequent but it's still noticeable with the new keyboard.
What exactly is the "key scan-line ghosting issue"? I usually hold one key for a short period of time before pressing another key. When the problem occurs there are maximum of two keys pressed at once. For example sometimes I'm running in a straight line (W) and when I press (W + A or W + D) the character keeps running straight for one second before changing direction.
I think it's somehow related to the performance. It usually happens when fps is below 60 and I think it happens when I look at something different. Perhaps the game is loading required files which creates input lag?
Alienware-L_Por
842 Posts
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March 11th, 2013 16:00
Have you tried installing the Microsoft Intellitype utility?
trics22
7 Posts
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March 11th, 2013 17:00
Would it help? I thought it's just for remapping of multimedia keys on microsoft keyboards
morblore
2.4K Posts
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March 12th, 2013 03:00
You should buy a gaming keyboard. There is a reason why they cost more
trics22
7 Posts
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March 12th, 2013 10:00
I have been thinking about that for some time now. I have this keyboard for 4 maybe 5 years but I never had a problem with it. I tried the new keyboard as I mentioned earlier which might have reduced the lag spikes however I still think it was there as it's difficult to reproduce the problem. I might actually look for a new keyboard either way
Tesla1856
8 Wizard
8 Wizard
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17K Posts
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March 12th, 2013 12:00
t.gif
3 Posts
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April 15th, 2013 12:00
I'm experiencing this issue as well - it's not just in games, though, it's in Windows in general.
It appears that it stops accepting all USB input commands for a brief second, then resumes. It still tracks the mouse cursor, for example, but doesn't track mouse clicks/key presses, like it's buffering them.
I've done a full format and reinstall, ran a full AlienAutopsy scan - zero reported errors but the issue persists.
I'm going to attempt to replace the motherboard and see if that fixes anything.
t.gif
3 Posts
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April 15th, 2013 15:00
It's an Alienware Aurora R3, running the A06 BIOS.
I've tried multiple keyboards, mice and ports and the issue persists. I still have the system under warranty, so I'm going to try the motherboard replacement.
Tesla1856
8 Wizard
8 Wizard
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17K Posts
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April 15th, 2013 15:00
Tesla1856
8 Wizard
8 Wizard
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17K Posts
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April 15th, 2013 15:00
NataliaatAW
2 Intern
2 Intern
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835 Posts
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April 15th, 2013 16:00
Hi everyone,
I know this doesn't seem like a graphics card/power issue, but check out this article:
Alienware Aurora ALX, R1, R2, R3, R4, May Crash Or Experience Blue Screen Errors Due to Graphics Card Power Cable
It might help.