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Re: PSX bugs reports [message #4208 is a reply to message #4196 ] Thu, 01 October 2015 12:11 Go to previous messageGo to next message
Administrator  [PM]
Administrator wrote on Wed, 16 September 2015 00:06

Nukotan wrote on Mon, 14 September 2015 20:10

[SLPS-02861] RPG Tsukuru 4 (Japan) -- music at 2x speed.


It's due to bugs in the timer emulation in Mednafen.

Interestingly the game seems to be using a timer in a nonsensical way; I wonder if it's an unintentional bug in the game, or the result of a quick patch late in development to work around some problem.


Fixed in 0.9.38.7.
Re: PSX bugs reports [message #4210 is a reply to message #4208 ] Fri, 02 October 2015 04:44 Go to previous messageGo to next message
Nukotan  [PM]
Thanks for fixing this in the latest version.
Re: PSX bugs reports [message #4212 is a reply to message #1786 ] Thu, 08 October 2015 09:27 Go to previous messageGo to next message
SkySnake  [PM]
Administrator wrote on Sun, 08 August 2010 21:43

This first post is a compilation of known game emulation bugs still present in the latest release of Mednafen(0.9.38.6).
[...]
Final Fantasy 7 - "Sony Computer blah blah" game startup image is a bit glitchy.

Does anyone know why this happens? I just find very odd that this is such a common issue with all PS1 emulators, even the more accurate ones.

[Updated on: Thu, 08 October 2015 09:28]

Re: PSX bugs reports [message #4238 is a reply to message #4212 ] Sat, 14 November 2015 18:32 Go to previous messageGo to next message
bacardi  [PM]
SkySnake wrote on Thu, 08 October 2015 09:27

Administrator wrote on Sun, 08 August 2010 21:43

This first post is a compilation of known game emulation bugs still present in the latest release of Mednafen(0.9.38.6).
[...]
Final Fantasy 7 - "Sony Computer blah blah" game startup image is a bit glitchy.

Does anyone know why this happens? I just find very odd that this is such a common issue with all PS1 emulators, even the more accurate ones.



Yeah this still occurs in 38.7. You mean the lower part of the first square logo? I have never seen it emulated properly, when it fades out, there's a portion of the text looking weird. Probably since it's interlaced or something.
Re: PSX bugs reports [message #4248 is a reply to message #1786 ] Sat, 28 November 2015 20:15 Go to previous messageGo to next message
Wanzer  [PM]
Front Mission 2 Ultimate Hits version, verified with redump.org.
Random lock-ups after battle sequences on enemy phase. I made a couple savestates, don't know if it helps.

Re: PSX bugs reports [message #4257 is a reply to message #1786 ] Sat, 12 December 2015 15:14 Go to previous messageGo to next message
bacardi  [PM]
in Valkyrie Profile (NTSC-U):

I'm noticing black flashes in the FMV before Lezard's Tower, the FMV where the camera pans around the building. Also there's a black flash in the first custscene with Lezard fleeing from the Elves right before his dialog shows up. Has anyone noticed this?

Using the latest stable version on OS X. Cheers.

---false positive-- I have just tested it on a real PSX and this is happening on real HW as well, just looks very weird Neutral

[Updated on: Sat, 30 January 2016 13:21]

Re: PSX bugs reports [message #4289 is a reply to message #1786 ] Fri, 08 January 2016 17:52 Go to previous messageGo to next message
bacardi  [PM]
One thing i've begun to notice in Chrono Cross (NTSC-U):

During certain battles, the top-right window with action description "flashes" with texture glitches appearing every frame, it's kind of subtle - but visible once you start to focus on it, it seems like the background textures cause a certain pop-in effect. I'll see if this is happening on a real PSX, but I can't remember seeing before. Can anyone reproduce/notice the same thing?
Re: PSX bugs reports [message #4401 is a reply to message #1786 ] Mon, 18 July 2016 06:25 Go to previous messageGo to next message
F1ReB4LL  [PM]
Maybe it's worth to also list the games that are unplayable due to unemulated peripherals? ZXE-D: Legend of Plasmatlite, certain Pocketstation and i-Mode ones.
Re: PSX bugs reports [message #4428 is a reply to message #1786 ] Mon, 08 August 2016 13:07 Go to previous messageGo to next message
F1ReB4LL  [PM]
[SLPM 80078] RayRay CD-ROM (Japan) -- if you watch any of the movies in the RayStorm section and then choose "exit" in the menu to exit to the RayStorm/RayTracers selection screen - freezes with the black screen.

What's interesting is that Xebra has the same bug (black screen) and ePSXe 2.0 even crashes with "Endless DMA chain detected, breaking it" message. PCSXr and hpsx64, however, work fine.
Re: PSX bugs reports [message #4508 is a reply to message #1786 ] Sun, 04 September 2016 04:49 Go to previous messageGo to next message
saftle  [PM]
Ballerburg - Castle Chaos (USA) - 2 Bug Reports
Reproduced on 0.9.39.1

1. Black Screen after loading Campaign. [Unplayable - Critical]

The game itself loads without problems, but when starting a campaign, the screen goes black and doesn't continue. This is reproducible every time.

2. Initial Loading Screens off-center / cut-off.

When starting the game, you can see that the loading screens are pushed down resulting in pixels being cut off at the bottom.

[Updated on: Sun, 04 September 2016 08:53]

Re: PSX bugs reports [message #4509 is a reply to message #1786 ] Sun, 04 September 2016 06:15 Go to previous messageGo to next message
saftle  [PM]
Barbie - Race & Ride (USA) - 1 Bug Report
Reproduced on 0.9.39.1

1. Texture issue (black texture replacement).

This occurs after doing the riding lesson and starting the Forest trail. At the beginning of the forest trail, you have to press Square to get off of the horse (the game notifies you). This is where the texture issue occurs.

See attached screenshot.

[Updated on: Sun, 04 September 2016 08:54]

Re: PSX bugs reports [message #4531 is a reply to message #1786 ] Tue, 20 September 2016 09:27 Go to previous messageGo to next message
Spikestuff  [PM]
Hello team mednafen!

Crash Bash (USA)
Recently the Crash Bash community was messing around with the memory which you can do by staring a game in adventure mode, entering the Save game screen and pressing Down+Left at the same time while you're hovering the letter "V" (bottom left corner).

The issue is that console vs emulation pull different results on 2 specific inputs.

Inputting "Oxide instant win":
R, D, U, L, U, L, D, R, D, L, L, R, U, R, L, U, L, R, U, L, R, L, R, R, L, U, R, L, R, U, L, R, U, L, R, R, L, D, R, L, R, L, U, D, R, U, R, R, U, U, R, U, U, U, D, L, R, D, D, U, U, L, R, R, D, D, R, U, L, D, U, U, U, D, R, R, L, R, U

This code is not meant to work which means it does crash on console, leaving a note being hung from the music.
However on emulator the code goes through perfectly fine and this code is specifically used to go to the final boss Oxide and skip the entire battle.

This other code "Instant Win v2" this one should crash when you attempt to save the game on console.
On emulator however the save file gets corrupted, and you save warp into a stage.

The code to input is this:
R, D, U, L, U, L, D, R, D, L, L, R, U, R, L, U, L, R, U, L, R, R, L, R, L, U, R, L, R, U, L, R, U, L, R, R, L, D, R, L, R, L, U, D, R, U, R, R, U, U, R, U, R, U

I hope this will help becoming the most accurate PlayStation emulator.
Re: PSX bugs reports [message #4659 is a reply to message #1786 ] Sat, 29 October 2016 14:20 Go to previous messageGo to next message
RibShark  [PM]
When you complete a level in the Japanese version of Rayman, instead of the level complete jingle stopping after it has played once, it continues to play in a loop until the next level is loaded. This is incorrect behaviour, and on console the jingle will only play once. I have verified that I am using a correct dump, as the disc hash is the same as that on redump.
Re: PSX bugs reports [message #4661 is a reply to message #4659 ] Sat, 29 October 2016 17:21 Go to previous messageGo to next message
Administrator  [PM]
RibShark wrote on Sat, 29 October 2016 14:20

When you complete a level in the Japanese version of Rayman, instead of the level complete jingle stopping after it has played once, it continues to play in a loop until the next level is loaded. This is incorrect behaviour, and on console the jingle will only play once. I have verified that I am using a correct dump, as the disc hash is the same as that on redump.


The CUE sheet is probably bad, but I'll go ahead and check it out...

Edit: Nevermind, I see what you mean.

[Updated on: Sat, 29 October 2016 17:40]

Re: PSX bugs reports [message #4864 is a reply to message #1786 ] Tue, 28 February 2017 13:54 Go to previous messageGo to next message
daphnis  [PM]
Rayman (US) has sound issues whereby sound tracks either continue past when they should or the correct track is interrupted briefly by another.
Re: PSX bugs reports [message #4865 is a reply to message #4864 ] Tue, 28 February 2017 14:29 Go to previous messageGo to next message
Administrator  [PM]
Copy/paste(or attach) the CUE sheet you're using for the game.
Re: PSX bugs reports [message #4866 is a reply to message #4865 ] Tue, 28 February 2017 14:31 Go to previous messageGo to next message
daphnis  [PM]
FILE "RAYMAN.BIN" BINARY
TRACK 01 MODE2/2352
INDEX 01 00:00:00
TRACK 02 AUDIO
PREGAP 00:02:00
INDEX 01 09:15:60
TRACK 03 AUDIO
INDEX 01 09:29:10
TRACK 04 AUDIO
INDEX 01 10:38:43
TRACK 05 AUDIO
INDEX 01 11:45:71
TRACK 06 AUDIO
INDEX 01 12:51:20
TRACK 07 AUDIO
INDEX 01 13:19:42
TRACK 08 AUDIO
INDEX 01 14:31:23
TRACK 09 AUDIO
INDEX 01 15:32:54
TRACK 10 AUDIO
INDEX 01 16:29:29
TRACK 11 AUDIO
INDEX 01 17:34:26
TRACK 12 AUDIO
INDEX 01 19:01:19
TRACK 13 AUDIO
INDEX 01 20:03:42
TRACK 14 AUDIO
INDEX 01 21:12:65
TRACK 15 AUDIO
INDEX 01 22:17:23
TRACK 16 AUDIO
INDEX 01 23:23:06
TRACK 17 AUDIO
INDEX 01 24:31:41
TRACK 18 AUDIO
INDEX 01 25:18:52
TRACK 19 AUDIO
INDEX 01 26:16:40
TRACK 20 AUDIO
INDEX 01 27:13:31
TRACK 21 AUDIO
INDEX 01 28:19:22
TRACK 22 AUDIO
INDEX 01 29:25:10
TRACK 23 AUDIO
INDEX 01 30:42:12
TRACK 24 AUDIO
INDEX 01 31:18:28
TRACK 25 AUDIO
INDEX 01 31:54:58
TRACK 26 AUDIO
INDEX 01 33:02:26
TRACK 27 AUDIO
INDEX 01 34:10:09
TRACK 28 AUDIO
INDEX 01 35:16:69
TRACK 29 AUDIO
INDEX 01 36:27:72
TRACK 30 AUDIO
INDEX 01 36:36:33
TRACK 31 AUDIO
INDEX 01 36:43:53
TRACK 32 AUDIO
INDEX 01 38:06:36
TRACK 33 AUDIO
INDEX 01 39:13:34
TRACK 34 AUDIO
INDEX 01 40:13:30
TRACK 35 AUDIO
INDEX 01 41:24:59
TRACK 36 AUDIO
INDEX 01 42:34:53
TRACK 37 AUDIO
INDEX 01 43:39:29
TRACK 38 AUDIO
INDEX 01 44:47:73
TRACK 39 AUDIO
INDEX 01 45:53:63
TRACK 40 AUDIO
INDEX 01 46:53:02
TRACK 41 AUDIO
INDEX 01 47:40:03
TRACK 42 AUDIO
INDEX 01 48:52:67
TRACK 43 AUDIO
INDEX 01 49:55:74
TRACK 44 AUDIO
INDEX 01 51:02:26
TRACK 45 AUDIO
INDEX 01 52:11:13
TRACK 46 AUDIO
INDEX 01 53:17:55
TRACK 47 AUDIO
INDEX 01 54:16:09
TRACK 48 AUDIO
INDEX 01 55:20:07
TRACK 49 AUDIO
INDEX 01 56:22:13
TRACK 50 AUDIO
INDEX 01 57:02:21
TRACK 51 AUDIO
INDEX 01 57:45:47
Re: PSX bugs reports [message #4867 is a reply to message #4866 ] Tue, 28 February 2017 14:33 Go to previous messageGo to next message
Administrator  [PM]
That CUE sheet(and possibly the CD image as a whole) is bad, it's missing pregaps on almost all the audio tracks.
Re: PSX bugs reports [message #4868 is a reply to message #4867 ] Tue, 28 February 2017 15:01 Go to previous messageGo to next message
daphnis  [PM]
Apologies for the false report, in that case.
Re: PSX bugs reports [message #4989 is a reply to message #1786 ] Sat, 06 May 2017 15:21 Go to previous messageGo to next message
F1ReB4LL  [PM]
[SLPS 00417] Racingroovy VS (Japan) -- after the BIOS it shows the Sammy logo, then it shows some rolling demo, then it goes into the main menu. On my SCPH-7000 console (KSM-440ADM drive, if important) the Sammy logo is shown for 15 seconds. Mednafen hangs there for exactly 47 seconds. Latest Xebra - 1 minute and 28 seconds. MAME just stops there. Why does it take so much longer compared to the console?

[Updated on: Sat, 06 May 2017 15:22]

Re: PSX bugs reports [message #4990 is a reply to message #4989 ] Sun, 07 May 2017 18:19 Go to previous messageGo to next message
Administrator  [PM]
F1ReB4LL wrote on Sat, 06 May 2017 15:21

[SLPS 00417] Racingroovy VS (Japan) -- after the BIOS it shows the Sammy logo, then it shows some rolling demo, then it goes into the main menu. On my SCPH-7000 console (KSM-440ADM drive, if important) the Sammy logo is shown for 15 seconds. Mednafen hangs there for exactly 47 seconds. Latest Xebra - 1 minute and 28 seconds. MAME just stops there. Why does it take so much longer compared to the console?


Looks like something to do with the memory card...
Re: PSX bugs reports [message #4996 is a reply to message #4990 ] Mon, 22 May 2017 07:06 Go to previous messageGo to next message
F1ReB4LL  [PM]
Administrator wrote on Sun, 07 May 2017 18:19


Looks like something to do with the memory card...

You're correct Smile Hangs for around 50 seconds on a console with the card inserted and around 15 seconds on Mednfen if to disable the memcard.
Re: PSX bugs reports [message #4998 is a reply to message #4428 ] Mon, 22 May 2017 21:10 Go to previous messageGo to next message
F1ReB4LL  [PM]
F1ReB4LL wrote on Mon, 08 August 2016 13:07

[SLPM 80078] RayRay CD-ROM (Japan) -- if you watch any of the movies in the RayStorm section and then choose "exit" in the menu to exit to the RayStorm/RayTracers selection screen - freezes with the black screen.

What's interesting is that Xebra has the same bug (black screen) and ePSXe 2.0 even crashes with "Endless DMA chain detected, breaking it" message. PCSXr and hpsx64, however, work fine.

The bug is still there in the latest Mednafen and I don't see this title in the bugs list. Do you need the image, maybe?
Re: PSX bugs reports [message #4999 is a reply to message #4998 ] Tue, 23 May 2017 00:30 Go to previous messageGo to next message
Administrator  [PM]
F1ReB4LL wrote on Mon, 22 May 2017 21:10

The bug is still there in the latest Mednafen and I don't see this title in the bugs list. Do you need the image, maybe?


Is it confirmed that the bug doesn't happen on a PS1?
Re: PSX bugs reports [message #5003 is a reply to message #1786 ] Sun, 28 May 2017 13:53 Go to previous messageGo to next message
LoStraniero91  [PM]
The Next Tetris [SLES_019.87]

Locks up after the intro videos.

- EDIT 1

Out of curiosity, I've tested the NTSC_U version and it works. What happens in the PAL version after the intro vidoes is that you get a language selection screen.

[Updated on: Mon, 29 May 2017 11:00]

Re: PSX bugs reports [message #5038 is a reply to message #1786 ] Sun, 18 June 2017 10:02 Go to previous messageGo to next message
LoStraniero91  [PM]
International Moto X [SLES_000.99]

Tested with 0.9.45.1

Flickering graphic in menus.


  • Attachment: Moto.avi
    (Size: 8.92MB, Downloaded 67 time(s))

Re: PSX bugs reports [message #5043 is a reply to message #1786 ] Wed, 21 June 2017 17:16 Go to previous messageGo to next message
LoStraniero91  [PM]
Incredible Crisis [SLES_029.33]

Tested with Mednafen 0.9.45.1

Hangs at the "Etusko and the Golden pig" level (actually a typo of the name) in Etsuko's Chapter 2: gameplay doesn't start after the instructions.
Re: PSX bugs reports [message #5044 is a reply to message #1786 ] Thu, 22 June 2017 07:29 Go to previous messageGo to next message
Scall  [PM]
I confirm the issue in Incredible Crisis [SLES_029.33], and attach my memory card. To reproduce it just load the memory card from the main menu and then continue the game.

P.S.: reproduced it with the USA version as well.

[Updated on: Sat, 24 June 2017 06:54]

Re: PSX bugs reports [message #5086 is a reply to message #1786 ] Thu, 27 July 2017 15:08 Go to previous messageGo to next message
Scall  [PM]
Quote:

Nightmare Creatures - BIOS reverb sound excessively contaminates beginning of game.


It occurs with Fight & X-Multiply Arcade Gears (SLPS-01267) and Team Buddies (SLUS-00869) as well. Mednafen 0.9.45.1.
Re: PSX bugs reports [message #5145 is a reply to message #1786 ] Sun, 13 August 2017 16:35 Go to previous messageGo to next message
FabioB  [PM]
Resident Evil Director's Cut bug is still present in latest version.
Controller screen appear in certain transition screens.
This bug was supposed to be fixed years ago... Laughing
Not a serious bug, the game is always perfectly enjoyable, just a bit annoying.
Re: PSX bugs reports [message #5151 is a reply to message #1786 ] Sat, 19 August 2017 17:32 Go to previous messageGo to next message
Jadius  [PM]
Parasite Eve has a graphical bug with the pterodactyls whenever they shoot their Pterodactyl Shot (that's what the official strategy guide calls it). It was the only graphical bug I ran into during a complete playthrough.

http://i.imgur.com/A9r3wot.jpg
http://i.imgur.com/1D3BLlD.jpg
Re: PSX bugs reports [message #5152 is a reply to message #5151 ] Sat, 19 August 2017 18:42 Go to previous messageGo to next message
Administrator  [PM]
Jadius wrote on Sat, 19 August 2017 17:32

Parasite Eve has a graphical bug with the pterodactyls whenever they shoot their Pterodactyl Shot (that's what the official strategy guide calls it). It was the only graphical bug I ran into during a complete playthrough.


What version of Mednafen? Do you have a memory card file you can attach in a reply?
Re: PSX bugs reports [message #5154 is a reply to message #5152 ] Sun, 20 August 2017 07:50 Go to previous messageGo to next message
Jadius  [PM]
Version 0.9.46.

Unfortunately, I didn't think to do anything more than take snapshots. I plan on playing through the EX game soon, so I'll make a save when I reach that point (the Museum is late in the game).

Oddly enough, the bug didn't occur on the first scripted encounter with the pterodactyl, just most of the ones during random battles, with the exception of the last two or so that I encountered. Not sure if it's associated with the areas they spawned in, but I'm pretty sure it doesn't happen on real hardware.

For what it's worth, I was using the goat OpenGL pixel shader with scanlines enabled (scanline opacity set to -5) with the goatron mask pattern. No special video scalers. My video card is a GeForce GTX 460.
Re: PSX bugs reports [message #5220 is a reply to message #5154 ] Thu, 14 September 2017 08:59 Go to previous messageGo to next message
Scall  [PM]
Micro Machines V3 (SLUS-00559): black line at the top of the screen when multitap is enabled on both ports (it doesn't occur in the European version). If you select 2 players the black line is fixed, with 8 players it isn't.
Steps to reproduce: with multitap enabled on port 1 and 2, select MULTIPLAYER -> OK -> SINGLE RACE, and confirm until the race starts.

Save states attached.

Re: PSX bugs reports [message #5279 is a reply to message #1786 ] Thu, 09 November 2017 22:44 Go to previous messageGo to next message
ThereIsNothing  [PM]
Duke Nukem: Total Meltdown
Animated TV screen is glitched at certain angles, glitch happens the most when you crouch.
index.php?t=getfile&id=1053&private=0
index.php?t=getfile&id=1054&private=0

Also music in this game doesn't loop at all, tracks don't even play to the end and just stop abruptly near the end. It is possible to restart playback by switching music off and on in the options, but it helps only once, second time it does nothing and the only way I found to make it play again is to make quicksave and game will restart playback.

Another issue is quite weird. In the main menu going into options and changing sound mode from STEREO A to STEREO B changes the way music sounds but it will never sounds the same when you switch back to STEREO A, it feels as if music significantly lost its panning.

Here is memory card file with save near that TV.

Die Hard Trilogy [message #5298 is a reply to message #1786 ] Sat, 18 November 2017 08:51 Go to previous messageGo to next message
LoStraniero91  [PM]
Die Hard Trilogy [SLES_004.45]

Tested with Mednafen 0.9.48

Flickering graphic on the right side of the screen in Die Hard: With a Vengeance.

index.php?t=getfile&id=1065&private=0

  • Attachment: Die Hard.jpg
    (Size: 320.23KB, Downloaded 1557 time(s))

Re: PSX bugs reports [message #5313 is a reply to message #5279 ] Wed, 29 November 2017 08:10 Go to previous messageGo to next message
ThereIsNothing  [PM]
You can forget about that bug with TV texture in Duke Nukem, on real hardware it looks exactly the same.

So, only bug with sound has to be fixed.
Re: PSX bugs reports [message #5336 is a reply to message #5154 ] Thu, 28 December 2017 16:07 Go to previous messageGo to next message
Jadius  [PM]
I finally got around to creating a save state for the aforementioned bug in Parasite Eve. In my previous post, I stated that the bug didn't occur on the first scripted encounter with the pterodactyl. That wasn't the case during my second playthrough, however. It's possibly random.

This save state is just before the first scripted encounter. Just walk forward to trigger it. The bug occurs when the pterodactyl's blue orbs make contact with something. If the bug doesn't occur, there *should* be another pterodactyl encounter in the next hallway, and another in the room just beyond that. Those two encounters have the chance of being something other than a pterodactyl, so just reload the save state if that's the case.

Some notes that may or may not matter:

- Using Mednafen v0.9.48
- Game is being loaded with a M3U
- The save state is during Disc 2

[Updated on: Sat, 03 February 2018 03:19]

Re: PSX bugs reports [message #5404 is a reply to message #5086 ] Sun, 11 February 2018 07:13 Go to previous messageGo to next message
jjfmz42015  [PM]
The next tetris

Pal version locks up after intros

Ntsc version looks like it works but is unplayable pieces get stuck at top of screen and rendering error in top left.

This same game has same issue with ntsc veraion on epsxe but for some reason the pal version is flawless on epsxe

[Updated on: Sun, 11 February 2018 07:17]

Re: PSX bugs reports [message #5496 is a reply to message #1786 ] Sat, 07 April 2018 08:32 Go to previous messageGo to previous message
F1ReB4LL  [PM]
[SLPS 01620] Goryuujin Electro (Japan) -- hangs with the black screen after pressing X at the screen shown on the screenshot (you select the game mode in the main menu - loading - press X - black screen).

index.php?t=getfile&id=1104&private=0

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