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Main => Monitor/Video Forum => Topic started by: help on November 10, 2018, 07:27:38 pm

Title: CRT flickering when set to wrong resolution
Post by: help on November 10, 2018, 07:27:38 pm
Hi, we are working with a trisync monitor in a DDR cabinet and are trying to upgrade the hard drive in the computer it is attached to. In the process, we installed Windows 10 and forced the desktop resolution to 640x480. When the resolution is not set to this, the monitor flickers and makes arcing noises. Even though we were able to set the correct resolution and it works fine once it gets to desktop, the Windows 10 boot screen (with the spinning dots) is not 640x480 (I am assuming this is the problem) so the flickering occurs until it gets past that screen.

My questions are:

Is this screen flickering potentially damaging to the monitor?
Is there any way to either disable the boot screen or change the resolution of the boot screen of Windows 10?

I tried GUI boot off in boot menu options, but the problem continues.
Title: Re: CRT flickering when set to wrong resolution
Post by: Paradroid on November 11, 2018, 04:40:24 pm
Is this screen flickering potentially damaging to the monitor?

Yes.

Is there any way to either disable the boot screen or change the resolution of the boot screen of Windows 10?

Yes: ATOM-15 (http://geedorah.com/eiusdemmodi/forum/viewtopic.php?id=64)
Title: Re: CRT flickering when set to wrong resolution
Post by: help on November 12, 2018, 12:35:06 pm
The issue isn't the bios screen, but the Windows 10 splash screen. Will this apply to that too?
Title: Re: CRT flickering when set to wrong resolution
Post by: Paradroid on November 12, 2018, 08:02:30 pm
The issue isn't the bios screen, but the Windows 10 splash screen. Will this apply to that too?

Yep. I recently flashed an XFX HD 4350 and the image syncs on my TV all the way from power-on to the Windows 10 desktop displaying.
Title: Re: CRT flickering when set to wrong resolution
Post by: help on November 13, 2018, 01:46:35 am
Is this something crt emudriver would also fix? I am kind of wary of flashing a rom that could brick my graphics card
Title: Re: CRT flickering when set to wrong resolution
Post by: buttersoft on November 14, 2018, 05:29:44 pm
Search the GroovyMAME subforum on here, and google too, for your model of GPU and Atom15. Try a few variations like "Brand-of-GPU-and-model Atom-15", "GPU-model atom15", etc. See if anyone is having problems. If not, pull the BIOS and patch it. If that part works, you can probably safely flash it to the card. Think about a backup plan as well though. See how much the cheapest card you could get is, like a Radeon 5450, remembering that you need it in the first PCIe slot, and the bricked GPU in the second. Then you simply flash the original bios back the card, because you backed up a copy before you patched it :)