MiSTer-devel / NeoGeo_MiSTer

NeoGeo for MiSTer
GNU General Public License v2.0
145 stars 76 forks source link

[NEOCD] Flickering pixels on-screen after recent commit (fix async clocks and latches). #196

Closed Zet-sensei closed 11 months ago

Zet-sensei commented 11 months ago

After commit https://github.com/MiSTer-devel/NeoGeo_MiSTer/commit/90a8350c4e7fafb64067cf777b58a93bc7511fdc, the Neo Geo CD part of the core is having flickering pixels on-screen.

The regression is visible with on the boot sequence, the CD player and in-game.

An example here, visible on the right part of the logo & the Neo Geo CD font. 20230723_220800-screen

EDIT : Typo. A second user reports the same problem on Discord. The core was compiled from the source code on Quartus Lite 17.1 for me & the other user have used the AutoBuild one on Discord (unstable nightlies).

PepAlacant commented 11 months ago

Yes, with that build the flickering problems are present. KOF 94 in AES-MVS has the same issue too.

sorgelig commented 11 months ago

it's known issue

Zet-sensei commented 11 months ago

Fixed with PR https://github.com/MiSTer-devel/NeoGeo_MiSTer/pull/197.