Topic Title: Need help with video lag issue on Secondary monitor while gaming on Primary
Topic Summary: Video lag
Created On: 10/26/2013 05:55 PM
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 10/26/2013 05:55 PM
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Joined: 10/14/2013

Hi everyone, first off I'm new to this forum and I'm coming here as a last resort to try to figure out this issue. I have a custom PC I built in May 2013 that has all the bells and whistles. One disconcerting and rather annoying thing that happens is that while I'm gaming on my Primary monitor and viewing a video (youtube or twitch TV) on the secondary, then the video starts to lag and stutter immediately when I open the game. It occurs when I play Starcraft II and Diablo III. But not XCOM: Enemy Unknown. I have not tried other games. But my impression is that the more demanding games are causing this issue (I think).

I'm not THAT experienced with computers. I mean, I built my own. I understand basic terms. I can generally figure ***** out. But I'm not an expert. Just wanted to throw that out there.

Here is the complete breakdown of my computer:

GPU (have never overclocked)

Model: Gigabyte AMD Radeon HD 7900 Series

Driver Version:

Catalyst Version: 13.9

AMD Catalyst Control Center Version: 2013.1009.932.15229

Driver Packaging Version

Operating System

Windows 8 (64-bit)

Starcraft 2

-Graphic settings all on Ultra

-Anti-aliasing and Vertical Sync are activated

-Game is updated to latest patch

-DirectX 11 installed

Power Supply

-Corsair HX Series HX750 750W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply.

100 - 240 V 47 - 63 Hz

+3.3V@25A, +5V@25A, +12V@62A, -12V@0.8A, +5VSB@3A

Display Devices

Dual ASUS PB238Q Monitors

Primary connected to GPU via DIVX cable

Secondary connect to motherboard via DIVX cable

*I have tried connecting secondary to the GPU using an HDMI cable. The video lag issue still occurs. I have also tried swapping the primary and secondary monitors and swapping the cables as well. 

CPU (no overclocking ever performed)

Intel Core i5 3570K @ 3.40GHz Ivy Bridge Socket 1155 LGA

4 Cores, 4 Threads


Gigabyte GA-Z77X-UD3H rev. 1.1

BIOS Version: F18


Corsair Vengeance 8GB (2x4 GB) 1600 MHz (PC3 12800) 240-Pin DDR3

Timing 9-9-9-24


Bootable SSD: Samsung SSD 840 PRO Series 120 GB

Secondary HDD: Western Digital Black 1 TB 7,200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive WD1002FAEX - OEM


Cooler Master 932 HAF Full Tower with 4 fans

Additional Hardware/Software

Microsoft SideWinder X4 Keyboard

Logitech M510 Wireless Mouse

Buffalo HD-W10TIU2/RI External Hardrive (not always on)

iPhone 4 and iPhone 5S

Steam (Skyrim, Fallout New Vegas, The Walking Dead, Left 4 Dead 2, Borderlands 2)

Origin: Crysis 3, Simcity

Norton Internet Security version

iTunes 11.2.1

Google Chrome Version 30.0.1599.101 m

Additional Details

-I have performed CCleaner to clean registry.

-Tried updating to Windows 8.1 but failed at 81%. Had to perform system restore (this was a few days ago). The problem had been occuring way before this however.

-My windows updates is another issue. My computer continually checks and finds windows updates every 2 days or so. And tells me I need to install them. Some of the updates fail during installation. I have called Microsoft about this. But they want $100 to fix the issue (which is SUCH BULLSHIT because basically it's their damn windows that's broken...but my warranty was up after only 30 days??? WTF don't they have enough money? I digress...). Anyhow, I have tried Microsofts update troubleshooter/automated fixer. Didn't work. I currently have updates disabled since it will just keep on reinstalling the same updates over and over. I may just have to pay Microsoft their stupid money unless anyone here has any bright ideas. Better yet, could tell me if this issue is somehow related to the one above.

If you've read this far you are very kind. I look forward to your reply.

Thank you!







 10/30/2013 07:43 PM
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Geez, nobody can give me an answer?

 10/30/2013 08:06 PM
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Try disabling hardware acceleration...use software rendering instead. In IE..go to tools > internet options > advanced ...Firefox has the same option.


Intel I7 960 @ 3.87ghz *Intel DX58SO *AMD R9 290 4gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit 

***** cetera fallunt, ludere mortuus ******

 11/01/2013 07:18 AM
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Unfortunately this did not work. The video still lags considerbly when I load my games. I tried disabling in Chrome and IE, both in Settings and by right-clicking the video itself and disabling "Hardware Acceleration". Didn't work.

Edited: 11/01/2013 at 05:42 PM by whitejamesbr0wn
 11/02/2013 04:13 PM
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Response of Gigabyte Support:

If you attempt to reload the OS off an clean installation and isolate only just

the bare minimal hardware install does it exhibit the same issue.
- cpu along with heatsinkfan
- single stick of memory
- onboard video
- single hdd and optical drive

Test with onboard video without any cards connected and check the results first.
As for the Windows update you can disable under the Windows setting as it is optional
to have it auto detect for new update.

Edited: 11/02/2013 at 04:40 PM by whitejamesbr0wn
 02/08/2014 03:28 PM
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I have not actually tried the recommendation from Gigabyte yet. But is there anybody here who can give an explanation as to why this could be happening?

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