Bsnes image synchronization issue

Kyo Kusanagi 84 · October 7th, 2009

I've just started using bsnes and it's great, but I get an annoying visual issue: even with sync video set, it's like a horizontal line moved slowly and continuously from the bottom to the top of the screen, causing an irritating tearing. I have this problem no matter what the vsync setting in Catalyst Control Center is -I have a Radeon X850XT for now, waiting for a HD5850 from a shop nearby. This happens with the Direct3D driver, I've tried only this one and OpenGL -which is pitiful, even with triple buffering set in CCC the image doesn't sync at all-, haven't tried the other ones because I guess Direct3D is the best one, and I don't have this issue in ZSNES, where the image sync is outstanding even without resorting to vsync, just triple buffering and voilà, perfect image sync. What's the matter?

UPDATE: I tried running bsnes with Resolution Changer -with a 640x480 resolution, I wanna try to stress my cpu as little as possible-, hoping that forcing it to run in a real fullscreen mode could improve the image sync, but the issue is "inverted": the horizontal line moves from the top to the bottom of the screen. Just in case it can be useful info, I experience this issue in every game -I tried 3 so far: Rockman X, Do Re Mi Fantasy and Dragon Ball Z Hyper Dimension. And I got this problem with the Gens32 Surreal emulator too, with the only difference that getting the issue in Gens32 made me switch to Kega, which is far better than Gens32 in my opinion, while getting this issue in bsnes is making me delete bsnes to switch back to ZSNES and SNES9x used together depending on the game I run, good emulators but not as good as bsnes in terms of emulation faithfulness.

UPDATE 2: using a 75hz refresh rate -the maximum my monitor, an LG M227WD, supports-, the horizontal line stays in the middle of the screen, it doesn't move anymore but it's as irritating as before. Is it a problem of the emulator itself? I did read in the official site some games have a horizontal line issue, but it's no coincidence if I tried 3 games and all of them have the same problem.

Last edited by Kyo Kusanagi 84; October 8th, 2009 at 09:00..

Kyo Kusanagi 84 · October 10th, 2009

Sorry, it's a DVI settings issue, I've just noticed bsnes runs perfectly in VGA. Since I've opened the thread, I would like to know, what are the bsnes games with the horizontal line issue? If they are games I like, I will keep ZSNES and SNES9x for them, otherwise I will keep bsnes as my only SFC emulator -I don't like keeping software I don't use on my HDD :P

Squall-Leonhart · October 10th, 2009

its definitely a vsync issue but it can only be fixed within the app itself, forcing vsync at the driver level doesn't tend to work for emulators.

__________________

VBA-M | Xtemu | NGOHQ | Post Impact Productions | TNHW | XBCD 0.2.6 | Satanic666's Emulator Compiles
Don't be a NOOB, READ THE NGEmu/EmuForums Rules of Conduct
Need Help with ePSXe? This is your first stop!.
If you don't post all the required information, you don't get help.
Everytime someone posts a romsite, God kills a beautiful woman.

Kyo Kusanagi 84 · October 10th, 2009

Thank you for your reply ^^ I can assure you I don't have any sync issue over a VGA cable, just over a DVI one. By the way, do you know what are the games that present the horizontal line issue in bsnes?

Squall-Leonhart · October 10th, 2009

Well if its anything like Snes9x, only games where vertical movement occurs, such as Final Fantasy, or a side scroller where you can jump high enough to make the view scroll up and down.

__________________

VBA-M | Xtemu | NGOHQ | Post Impact Productions | TNHW | XBCD 0.2.6 | Satanic666's Emulator Compiles
Don't be a NOOB, READ THE NGEmu/EmuForums Rules of Conduct
Need Help with ePSXe? This is your first stop!.
If you don't post all the required information, you don't get help.
Everytime someone posts a romsite, God kills a beautiful woman.

Kyo Kusanagi 84 · October 10th, 2009

Thank you for the info

I didn't find such issues in Rockman X -it has a bit of vertical scrolling since the very first stage-, so maybe the games affected are actually less than in SNES9x.

October 7th, 2009	#1 (permalink)
Kyo Kusanagi 84 Registered User Join Date: Sep 2009 Location: Italy Posts: 24	Bsnes image synchronization issue I've just started using bsnes and it's great, but I get an annoying visual issue: even with sync video set, it's like a horizontal line moved slowly and continuously from the bottom to the top of the screen, causing an irritating tearing. I have this problem no matter what the vsync setting in Catalyst Control Center is -I have a Radeon X850XT for now, waiting for a HD5850 from a shop nearby. This happens with the Direct3D driver, I've tried only this one and OpenGL -which is pitiful, even with triple buffering set in CCC the image doesn't sync at all-, haven't tried the other ones because I guess Direct3D is the best one, and I don't have this issue in ZSNES, where the image sync is outstanding even without resorting to vsync, just triple buffering and voilà, perfect image sync. What's the matter? UPDATE: I tried running bsnes with Resolution Changer -with a 640x480 resolution, I wanna try to stress my cpu as little as possible-, hoping that forcing it to run in a real fullscreen mode could improve the image sync, but the issue is "inverted": the horizontal line moves from the top to the bottom of the screen. Just in case it can be useful info, I experience this issue in every game -I tried 3 so far: Rockman X, Do Re Mi Fantasy and Dragon Ball Z Hyper Dimension. And I got this problem with the Gens32 Surreal emulator too, with the only difference that getting the issue in Gens32 made me switch to Kega, which is far better than Gens32 in my opinion, while getting this issue in bsnes is making me delete bsnes to switch back to ZSNES and SNES9x used together depending on the game I run, good emulators but not as good as bsnes in terms of emulation faithfulness. UPDATE 2: using a 75hz refresh rate -the maximum my monitor, an LG M227WD, supports-, the horizontal line stays in the middle of the screen, it doesn't move anymore but it's as irritating as before. Is it a problem of the emulator itself? I did read in the official site some games have a horizontal line issue, but it's no coincidence if I tried 3 games and all of them have the same problem. Last edited by Kyo Kusanagi 84; October 8th, 2009 at 09:00..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

October 10th, 2009	#2 (permalink)
Kyo Kusanagi 84 Registered User Join Date: Sep 2009 Location: Italy Posts: 24	Sorry, it's a DVI settings issue, I've just noticed bsnes runs perfectly in VGA. Since I've opened the thread, I would like to know, what are the bsnes games with the horizontal line issue? If they are games I like, I will keep ZSNES and SNES9x for them, otherwise I will keep bsnes as my only SFC emulator -I don't like keeping software I don't use on my HDD :P

October 10th, 2009	#3 (permalink)
Squall-Leonhart Behind ur girlfriend :D Join Date: Feb 2006 Location: Sydney, Australia Posts: 18,848	its definitely a vsync issue but it can only be fixed within the app itself, forcing vsync at the driver level doesn't tend to work for emulators. __________________ VBA-M \| Xtemu \| NGOHQ \| Post Impact Productions \| TNHW \| XBCD 0.2.6 \| Satanic666's Emulator Compiles Don't be a NOOB, READ THE NGEmu/EmuForums Rules of Conduct Need Help with ePSXe? This is your first stop!. If you don't post all the required information, you don't get help. Everytime someone posts a romsite, God kills a beautiful woman.

October 10th, 2009	#4 (permalink)
Kyo Kusanagi 84 Registered User Join Date: Sep 2009 Location: Italy Posts: 24	Thank you for your reply ^^ I can assure you I don't have any sync issue over a VGA cable, just over a DVI one. By the way, do you know what are the games that present the horizontal line issue in bsnes?

October 10th, 2009	#5 (permalink)
Squall-Leonhart Behind ur girlfriend :D Join Date: Feb 2006 Location: Sydney, Australia Posts: 18,848	Well if its anything like Snes9x, only games where vertical movement occurs, such as Final Fantasy, or a side scroller where you can jump high enough to make the view scroll up and down. __________________ VBA-M \| Xtemu \| NGOHQ \| Post Impact Productions \| TNHW \| XBCD 0.2.6 \| Satanic666's Emulator Compiles Don't be a NOOB, READ THE NGEmu/EmuForums Rules of Conduct Need Help with ePSXe? This is your first stop!. If you don't post all the required information, you don't get help. Everytime someone posts a romsite, God kills a beautiful woman.

October 10th, 2009	#6 (permalink)
Kyo Kusanagi 84 Registered User Join Date: Sep 2009 Location: Italy Posts: 24	Thank you for the info I didn't find such issues in Rockman X -it has a bit of vertical scrolling since the very first stage-, so maybe the games affected are actually less than in SNES9x.