Horizontal lines flickering amd graphics card


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Hi all,

I've had a problem with windows 10 and my acer PC with an AMD chipset. I constantly have black horizontal lines flickering across my screen. It is worse when running games or Chrome.

I've had this problem before in Ubuntu when I tried using proprietary drivers instead of the default open source ones.
I didn't have this problem before I upgraded from windows 7 sp1.

Is this a known problem? And more importantly can I fix it? It doesn't stop me using the PC but is rather annoying ^^.

I would attach a screenshot but I can't seem to get a line in a screenshot :)

PC: Acer aspire 7750g with internal SSD and HDD
Graphics hardware: AMD Radeon 6600M and 6700M graphics chipset.
Driver version: 15.20-150715a-184226E driver with CCC version 2015.0715.2138.37093
 
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Trouble

Noob Whisperer
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Hello and welcome to the forum.
AMD Mobility Radeon™ Notebook Drivers
http://support.amd.com/en-us/download
Right side of page notebook driver Windows 10 32 and 64 bit.
Not sure if they are actually newer than what you are using or not. (not an amd guy).

Additionally check your advanced display properties in Windows and make sure you are not overdriving your monitor.
LCD / LED flatpanels seem to work best at 60 hertz
While
Older CRTs seem to roll sometimes at 60 hertz and are better set a little higher.
 
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Hi, thanks for answering,

I used the auto detect program on the AMD site to determine which driver to install. Unfortunatly That didn't work, I'm still having the same problem.

I also had a look in the display settings. I have an inbuilt lcd display set on 1600x900 (default and recommended) set at 60 hz.

Tomorrow I'll plug my pc in my hdmi tv and dvi external monitor to see if I get the same issue on them.
 
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Hi, did you fix it because I have the same problem. I have the same laptop, driver, screen.
 
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hi, just an update.

I haven't solved my problem, but instead I've just really confused myself x)
When I plus my pc into an external display over VGA or HDMI, the problem stops all together, even on the inbuilt display. Both monitors are LCD displays clocked at 60Hz.

At least I'm not the only one with this problem ^^'

I'll signal it as a bug in Windows.
 
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Hi :)

Well like you I tried to plug an external display through VGA too and it fixed al my problems.
Sometimes I don't have the lines at all even when nothing is plugged in, and sometimes I have a lot of them. It is really weird.
 
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I had the same issue on a laptop with a Radeon HD 6650M Graphics Card. These steps seem to have done the trick:
1. Download the 'AMD Catalyst 15.8 Beta Driver for Windows 10, Windows 8.1 & Windows 7' driver here.
2. Uninstall the driver of the Display Adapter in Device Management. Do not reboot.
3. Install the downloaded AMD Catalyst driver and reboot.
4. Disable automatic driver updates (steps here).
Now in Device Management, the graphics card will show up under Display Adapters as 'Microsoft Basic Display-adapter' instead of 'AMD Radeon 6600M and 6700M graphics chipset'. The black flashing lines are now gone and despite the Basic driver, the important display settings are still there. Only the bloated settings (like intermediate resolutions you never use) are not included.

Without step 4, I noticed Windows will by default update the driver causing the issue to reappear. Therefore as a final step, I had to disable automatic driver installation in the Device Installation Settings of the machine.

If someone can improve on this, please do share.
 
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So can anyone tell me did the solutions from above worked? Because i would like to go to win 10. thx
 
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.. to continue post #8: after a regular windows update the lines were back.
I then forced the default graphics driver as described in this kb: https://support.microsoft.com/en-us/kb/325341, which worked for a while. However, after windows 10.1 update this also stopped working.

So far, I haven't come across any way to fix the flickering black lines permanently.
 
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disculpen mi post en español,... encontré una solución bastante rudimentaria, simplemente desconecto la fuente de alimentación y luego vuelvo a conectar y el parpadeo desaparece...

excuse my post in Spanish ... I found a rudimentary solution, simply disconnect the font supply and then reconnect , and the flicker disappears ...
 
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This problem has been driving me mad - fortunately I have a solution.

Problem: Acer Aspire 7750G (with HD 6650M graphics), upgraded to Windows 10. Horizontal flickery black lines on screen especially when scrolling)

I tried installing about 5 different display drivers. The Microsoft basic driver worked (no black lines) but had no 3D support. All the AMD drivers showed the problem.

The following was useful in removing old drivers:
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

I ended up using the latest AMD driver here:
http://support.amd.com/en-us/download/desktop/legacy?product=legacy3&os=Windows+10+-+64

I suspected that the problem was associated with the screen refresh frequency which is fixed at 60Hz. Googling led me to here:
http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

Using this program, I added an additional refresh frequency of 65Hz. Ran the restart program then changed the monitor setting to 65Hz. End of flickery black lines.

Make sure you read all the instructions on how to use CRU.
 
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This problem has been driving me mad - fortunately I have a solution.

Problem: Acer Aspire 7750G (with HD 6650M graphics), upgraded to Windows 10. Horizontal flickery black lines on screen especially when scrolling)

I tried installing about 5 different display drivers. The Microsoft basic driver worked (no black lines) but had no 3D support. All the AMD drivers showed the problem.

The following was useful in removing old drivers:
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

I ended up using the latest AMD driver here:
http://support.amd.com/en-us/download/desktop/legacy?product=legacy3&os=Windows+10+-+64

I suspected that the problem was associated with the screen refresh frequency which is fixed at 60Hz. Googling led me to here:
http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

Using this program, I added an additional refresh frequency of 65Hz. Ran the restart program then changed the monitor setting to 65Hz. End of flickery black lines.

Make sure you read all the instructions on how to use CRU.
Can you help me with refresh frequency? I don't understand how to use CRU programm.
 
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I am having this same issue on windows 10 preview build 14352 rs1 release 160522-1930. I am using the AMD Radeon r9290 with an aftermarket closed loop ( NZXT ) water cooler. My gpu temp never exceeds 32C even when running the most intense gaming application. Not an overheating problem as far as I can tell. Seems to be a Driver related issue. I can simply move the card down one PCI-E slot and reboot pc and it works just fine again until I reboot. I then power off again and move the card back up one PCI-E slot and it works perfectly again. My best guess is that Windows 10 has a poor driver implementation for video cards. I tried installing an older card ( Nvidia GTX 480 made by MSI ) and I got a really bad driver loop hang from windows update. The GTX480 worked incredibly well after driver installation from NVIDIA until I rebooted and windows update was forcing an older driver to install over and over again! SIGH*. I could not get that issue resolved unless I uninstalled nvidia drivers and reinstalled the ones from nvidia, however upon reboot windows update would force the installation of the older driver again which would screw everything up. I finally gave up trying and turned off windows update which fixed the problem with the nvidia card. I still havnt gotten the radeon drivers to work for longer than 24 hours without the glitchy screen thing yet, but I will post again if I find a solution. For now I think the best bet is to contact windows support and try to get them to resolve the bad windows update problems and go from there. Good Luck to everyone, this is extremely frusterating if you are like me and have just spent good money on games like Overwatch, which would be nice to be able to play without having to change PCI-E slots everytime before play.
 
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I signed up just to provide my story.
This issue has been tortured me for few month. I finally got it fixed, I would like to share the solution with you guys.
My issues was a few horizontal lines flickering around one third part from the top of the screen. It happened both in Windows 10 and windows 7. In windows 10 it's much worse.
My video card is a Gigabyte AMD 6450.
The fix is very simple. Downloaded an Easyboost from Gigabye's website and backed up my current video BIOS. Then used the auto BIOS upgrade option to upgrad the video card BIOS. Then the problem is GONE!!!
Although YMMV but I thought it's worth mentioning to you guys.
And take all the precaution while flashing any BIOS too. The most important one is Do NOT power off the machine during an BIOS upgrade.
 
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Using Easybost to update my AMD bios did the trick! I set my computer up today after five months in storage and after updating everything my 4K monitor started flickering. Thanks LJohn!

Operating System
Windows 10 Home 64-bit
CPU
Intel Core i7 4790 @ 3.60GHz 44 °C
Haswell 22nm Technology
RAM
32.0GB Dual-Channel DDR3 @ 798MHz (11-11-11-28)
Motherboard
Dell Inc. 0KWVT8 (CPU 1) 28 °C
Graphics
DELL P2715Q (3840x2160@60Hz)
2048MB ATI AMD Radeon R9 200 Series (ATI)
 
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Can you help me with refresh frequency? I don't understand how to use CRU programm.
Hi, just in response to benefrait's request for help (and just for reference if anyone has a similar problem).

Maddog Battie's solution works, and if you want a step-by-step guide, use this - http://www.pcadvisor.co.uk/how-to/pc-peripheral/how-overclock-your-monitor-3635779/

Go halfway down the page to 'How to overclock your monitor: AMD overclocking guide'

You're just overclocking the refresh rate on your laptop/PC. I've got a Acer 7750G with Radeon 6650m card and this worked. The only thing I changed from the PC Advisor article, was adding lower refresh rates than they had used. 65Hz should be sufficient.
 
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This problem has been driving me mad - fortunately I have a solution.

Problem: Acer Aspire 7750G (with HD 6650M graphics), upgraded to Windows 10. Horizontal flickery black lines on screen especially when scrolling)

I tried installing about 5 different display drivers. The Microsoft basic driver worked (no black lines) but had no 3D support. All the AMD drivers showed the problem.

The following was useful in removing old drivers:
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

I ended up using the latest AMD driver here:
http://support.amd.com/en-us/download/desktop/legacy?product=legacy3&os=Windows+10+-+64

I suspected that the problem was associated with the screen refresh frequency which is fixed at 60Hz. Googling led me to here:
http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

Using this program, I added an additional refresh frequency of 65Hz. Ran the restart program then changed the monitor setting to 65Hz. End of flickery black lines.

Make sure you read all the instructions on how to use CRU.
Thank you for your post.
This problem has been driving me mad - fortunately I have a solution.

Problem: Acer Aspire 7750G (with HD 6650M graphics), upgraded to Windows 10. Horizontal flickery black lines on screen especially when scrolling)

I tried installing about 5 different display drivers. The Microsoft basic driver worked (no black lines) but had no 3D support. All the AMD drivers showed the problem.

The following was useful in removing old drivers:
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

I ended up using the latest AMD driver here:
http://support.amd.com/en-us/download/desktop/legacy?product=legacy3&os=Windows+10+-+64

I suspected that the problem was associated with the screen refresh frequency which is fixed at 60Hz. Googling led me to here:
http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

Using this program, I added an additional refresh frequency of 65Hz. Ran the restart program then changed the monitor setting to 65Hz. End of flickery black lines.

Make sure you read all the instructions on how to use CRU.
Worked like a charm!! Thank you!! No more black annoying flickering lines on my Acer Aspire 7750G-9411 laptop upgraded to Windows 10!! :)
 

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