Author Topic: Picodrive 1.35 slight screen tearing  (Read 8395 times)

bigdavebear (OP)

  • Posts: 338
Picodrive 1.35 slight screen tearing
« on: March 21, 2011, 09:58:30 pm »
Hi has anyone else noticed some games in picodrive suffer from screen tearing more than others?

i.e Sonic has none really, Shadow Dancer a tiny bit that you can live with.

But E-Swat has a lot of tearing, my clock is standard 336Mhz i tried all the options but some make it worse.

Anyone know of how to get some games like E-Swat playing near perfect.

Thank You

SilverhawkBR

  • Posts: 390
Re: Picodrive 1.35 slight screen tearing
« Reply #1 on: March 21, 2011, 10:19:13 pm »
The tearing is also called "no vsync" or "no framelimit". When vertical syncronization is disabled, the tearing can occur. So, try messing around with "accurate renderers" and "framelimiting" options...

Poligrafowicz

  • Posts: 213
Re: Picodrive 1.35 slight screen tearing
« Reply #2 on: March 21, 2011, 10:35:03 pm »
Now that I think about it I had some weird screen tearing like effect in Another World (which made it unplayable). It like an emulation error though (somehow switching renderer didn't help). I wonder if both PAL and NTSC version of the game have the same issue.

Dingux SDL generally has a problem with tearing of some sort. I heard OpenDingux will have it fixed, but its not out yet and Picodrive might not work under it (without modifications). Picodrive certainly needs an update.

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #3 on: March 21, 2011, 10:53:24 pm »
So what options to you reconmend for picodrive i tried them all and overclock to 400+428Mhz and no fix.

If you yourself try pico drive and play SOR1 compared to SOR2 see if you notice SOR has tearing isues, while SOR2 does not.

Like E-Swat is even worse, but Shadow Dancer not that bad.

I know on PC that V-Synch synchs game to display refresh rate to get rid of tearing but the setting made no difference on Picodrive.

I have 1.1 firmware on Dingoo, would update that help.

What install of Dingux would you recomend, maybe when get another card i put a different package on.

Thanks Guys

Reason i got Dingoo was to play games on the go and to help time pass on 8-9 hour flights

SilverhawkBR

  • Posts: 390
Re: Picodrive 1.35 slight screen tearing
« Reply #4 on: March 21, 2011, 11:38:44 pm »
Poligrafowicz, all renderers must be accurate on PicoDrive for AW to work, im playing it fine here...

Poligrafowicz

  • Posts: 213
Re: Picodrive 1.35 slight screen tearing
« Reply #5 on: March 22, 2011, 10:05:20 am »
I have 1.1 firmware on Dingoo, would update that help.

If you use Dingux, it doesn't really matter which version of firmware you are using.

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #6 on: March 22, 2011, 11:11:18 am »
Poligrafowicz, all renderers must be accurate on PicoDrive for AW to work, im playing it fine here...

Hi do you have other games playing fine such as E-Swat and Streets of Rage 1

What settings do you reconmend, as i have tinkered with all in picodrive but still get slight tearing in those games.

The fixed native Emu they seem much better but the sound is messed up in that one.

Its a pitty that Gens or Kega cant be ported they are the best Emu's on PC

Poligrafowicz

  • Posts: 213
Re: Picodrive 1.35 slight screen tearing
« Reply #7 on: March 22, 2011, 03:52:00 pm »
After turning "accurate timing" in options and using accurate renderer, the tearing bug disappeared in my PAL version of Another World (though I'm not getting all frames now).

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #8 on: March 22, 2011, 04:08:41 pm »
Oh i was wondering if you had tearing/synch problems with any other games i have them with E-Swat and Streets of Rage.

Poligrafowicz

  • Posts: 213
Re: Picodrive 1.35 slight screen tearing
« Reply #9 on: March 22, 2011, 05:06:46 pm »
I have no tearing in NTSC version of Streets of Rage (default options).

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #10 on: March 22, 2011, 05:53:49 pm »
Well what default options and what emulator....

I may try a different Dingux Package and see if that helps.

My Dingoo Firmware is 1.1 (doubt that makes difference).

So in detail here is what i have noticed and i have not tried many games.

Streets of Rage 3 and Sonic do not have any real tearing problems in picodrive or native (fixed) Emu.

Streets of Rage 1 has some minor tearing in picodrive and lesser in the fixed native, when you scroll along in the game the the screen tears slightly i,e on the lamposts etc.

E-Swat tears the worst in picodrive but in the native Emu its not bad at all and bearable.

Now i am a fussy so and so and can spot things others dont seem to as it dont bother them, so as i am a really fussy perfectionist maybe i am seeing slight problems that others cant notice.

Like my pixel problem i am the only one who sees it, two others dont notice it, even when shown.

Maybe my eyes are funny lol (as i did have a funny thing when chewing gum while looking at CRT TV's they made the flicker effect that you see when trying to video a CRT).

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #11 on: March 22, 2011, 05:55:07 pm »
Oh also the Rom is UAE

I have tried 3 different SOR and E-Swats some bin. some gen some smd and changed country to USA amd Europe and it makes no real difference.

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #12 on: March 22, 2011, 07:12:48 pm »
Ok i have tried the toddler Dingux Local Pack v0.35 (had to remove games as only 512MB Card)

And moved roms to Picodrive on this Install pack and i still get the same problems and the same pixel problems.

Maybe i have a dodgy screen? I needed to use the 9331 LCD Driver/Image to boot.

Re: Picodrive 1.35 slight screen tearing
« Reply #13 on: March 22, 2011, 07:31:22 pm »
There's no point in downloading entire different packs. The only files that would make a difference are the zImage and rootfs. And there hasn't been an update to Picodrive in forever. That pack has an outdated zImage (and lot's of other things).

I had played a few stages of SoR1 on Dingux's Picodrive awhile back. I don't recall any noticeable screen tearing.

I just tried it out again. Looks fine. If there's any tearing it's so extremely slight that you shouldn't even call it "tearing".

If you really are that unreasonably picky, I'm surprised you haven't mentioned the LCD being turned on it's side from it's intended position, giving a different brightness for each of your eyes. It gives an uneven, glare effect. It supposedly gives some people head aches. It's not a big deal, but it's certainly more noticeable than any "tearing" that I'm seeing in SoR1.

« Last Edit: March 22, 2011, 07:54:40 pm by Jesse »

bigdavebear (OP)

  • Posts: 338
Re: Picodrive 1.35 slight screen tearing
« Reply #14 on: March 22, 2011, 09:59:57 pm »
I just tried it out again. Looks fine. If there's any tearing it's so extremely slight that you shouldn't even call it "tearing".

lol......

Yeah that sound like me, i guess i have to find a way of taking a video of it or maybe see the difference using TV Out.

As you said you see minor tearing, thats maybe what i got but just me being really fussy lol.

Put it this way, i used to buy new PC Games only to find my PC would not play the game full spec (highest settings) with out 100% performance, so instead of lowering settings i put game on shelf untill i get new PC... (loser i know ;) )

I do not notice that reflection thingy though....

Just out of interest what settings do you use on picodrive.

I guess as the fixed native emu also has minor tearing but to lesser extent, it could just be the Dingoo has trouble emulating Sega MD as easy as it does others, like how on DS you either had to use R/L Buttons to scroll screen or fit screen but no sound.

 

Post a new topic