Hello all,
I have problems with my uA1-GX and DvD - Divx
playback.

I have random crashes during movies,
apparently not linked to the software (dvplayer
registered or not, mplayer).
I have re-installed OS4 from the beginning paying
attention to everything but nothing has changed


I would like to know if anyone can watch a
complete DVD without problems with a Micro-uA1 GX

I'm in contact with 2other users and we are seriously
thinking at an hardware or software BUG

Can you please help with your feedback??

_________________
uA1 750Gx AmigaOS 4.1 u6
512 MB
SIL0680
HD 120GB + HD 20GB
DVDRom + DVDWriter
WNCE2001 wifi adapter
-----------------------------
AlexDran.net

@AlexDran

Can you be more specific?
What version of MPlayer?
Using the GUI or the shell for playback?
In either case what settings are you using?
Do you see whatever the problem is playing other files or just DVD playback?

#6

_________________
This posting, in its entirety, represents solely the perspective of the author.
*Secrecy has served us so well*

@AlexDran

No problems during playback here with my µA1(GX)512mb, sometimes I get a lockup after the dvd has finished but haven't managed to track the problem down yet.

I watch dvd's, encrypted and not, I have films in mpg, divx, & ogm, they all play fine. A few days ago I watched 8 episodes of heroes in divx format one after the other. I did get a couple of freezes but I downloaded the files again and they were ok.

I doubt it a cooling problem considering the time of year and your location, it could be faulty ram but check and clean your fans & heatsinks anyway.

_________________
OS4 Rocks
X1000 beta tester, Sam440 Flex (733)

Visit the Official OS4 Support Site for more help.

It may be that your sole purpose is to serve as a warning to others.

@Severin

I have the same problem and consider that i have tested the ram with memtest, the ram is the same that is in intuitionbase.com it is in the list of compatible hardware ( it is a kingston value ram 512Mb ), i have changed 3 different DVD-ROM, i have changed two ide cables..

I have the problem only with the DVD Playback.. i have no problem with the hd..

I have also changed the fan on the cpu with a big and better fan..

I have also contacted DVPlayer author but with no luck

Could it be a problem in the a1ide.device or could it be a vcore problem ?

My config is a micro with 512Mbram and amiga os final..

_________________
GDG-Entertainment
OS4Games
Iksnet
Bitplane

@AlexDran

"Simple" solution: Try to get a SII 0680 IDE controller and check again. I had a problem like this with my µA1 (random freezes during mp3 playback, just like my A4000 with DelfinaLite had), since I installed the SII the problems are gone. I don't know, if with Final update this problem is gone for A1 IDE, too, because I didn't try to change back to A1 IDE yet.

I can watch DVD movies with DVPlayerSE 'til end without any problems.

Greetz

@nubechecorre

hmmm... memtest is not a reliable tester for µ's and is only any good on XE's if you have 2 ram sticks and swap them between tests, emtest DOES NOT test the entire ram, only unallocated. if you have a single duff byte somewhere that has say the kickstart files in it and dvd playback is one of the few things that uses the affected area memtester would not find it.

Are you playing encrypted dvds? does it happen with all or only some?

I have a few encrypted dvd's that will not play.

Do you have udma turned on for the dvd drive?

What type of cable, round, udma, 40 wire?

Afaik vcore is not a problem with the µ's, if turning the voltage down helps it means your cooling isn't good enough.

_________________
OS4 Rocks
X1000 beta tester, Sam440 Flex (733)

Visit the Official OS4 Support Site for more help.

It may be that your sole purpose is to serve as a warning to others.

@AlexDran

I have the same problem. Sometimes I can watch a full dvd with DMA disabled, but as soon as I enable it the machine will freeze sooner rather than later.

I've tried changing cables (to flat ones that are guaranteed to support DMA) and tried memtester from a boot with no startup-sequence. I've tried adding cooling and I've checked the v-core settings.

I've tried from a clean install and from a regular install.

I have no idea what else to try by now.

Ok, I know the micro doesn't have a vcore problem, but I'll be damned if mine will run stable at the default 1.44V. I had lock-ups in the first 5 min after powerup, so lowered vcore to 1.39V, problem gone. I then had random copy lockups, lowered vcore to 1.34V where it is today & my system to very stable thank you. I can watch 2 hr videos just fine.

I changed vcore in the summer here as it can get real hot here in California. It's now Winter & the room temp is 70F, so for a test, I went back to 1.44V. First boot was to a black screen, hadn't had that happen in ages, instability was back. Tried 1.39V again & my copy lockup problem was back. So much for a heat problem here.

Lot of ppl think I'm nuts for messing with vcore, hi #6 - Severin , but I'm happy with the results.

I don't recommend changing vcore unless you know what your doing. CPU docs say you can change vcore +/- 50mV (1.39V to 1.49V) & be within safe operating specs. Technically, at 1.34V, I'm out of the safe zone, but I have a theory on why it works. I was a enginnering tech when I worked.

The micro does not have a vcore problem! (?)

Last edited by sundown on 02-Mar-2007 at 05:22 AM.

_________________
Hate tends to make you look stupid...

@AlexDran

Working fine here. In the past few months I have watched several movies in standard North American DVD encryption using DvPlayer. Just finised watching a 1hr 45 min movie. This time I remembered to enable UDMA before I started the movie. Sometimes I forget and watch a movie in best PIO mode. Even then movies are watchable, maybe an occasional jerky movement. As mentioned by Severin, sometimes I get a lockup after the dvd has finished. Didn't happen this time.

MicroA1(µA1-C) with IBM PPC 750GX CPU and standard 256 MB of RAM.
40 GB Maxtor 34098H4 DiamondMax harddrive ... master device on primary IDE (unit 0)
Lite On Combo SOHC-5232K DVD-CD-RW drive ... master device on secondary IDE (unit 2)

Both drives are hooked up to the onboard IDE connectors, harddrive on the 40-pin connector, combo drive on the 44-pin connector with a 44-pin to 40-pin adaptor. 80-wire flat cables.

I have never changed vcore or clocking settings, so I'm running with original hardware settings.

---
redfox

Last edited by redfox on 06-Mar-2007 at 01:37 AM.
Last edited by redfox on 02-Mar-2007 at 05:21 AM.

@Severin

I have problem with the DVD... only with the dvd.. with the hd i have no problem..

with all my dvd..

I have turned on DMA because the author of DVPlayer told me that the only way to see a dvd is turning on the DMA..

I use a 80 wire cable.. i set hd as master and dvd as slave on the primary ide..

_________________
GDG-Entertainment
OS4Games
Iksnet
Bitplane

@nubechecorre

Quote:

I have turned on DMA because the author of DVPlayer told me that the only way to see a dvd is turning on the DMA.

No. You can watch DVD's with DVDPlayer in PIO mode.
He must have been referring to the performance gain by using DMA, not the ability to use PIO.

#6

_________________
This posting, in its entirety, represents solely the perspective of the author.
*Secrecy has served us so well*

@sundown

I agree, probably it is a vcore /or heat) problem. Could you post jumpers for 1,39 and 1,34 settings?

_________________
ikir

@sundown

Quote:

Lot of ppl think I'm nuts for messing with vcore, hi #6 - Severin

No. I never said you were nuts. In fact, I mentioned that different batches of Micro A1-C had problems re:quality control and questioned THAT aspect.
btw-How are your experiments going with 256MB module only, as opposed to your 512MB module?

#6

_________________
This posting, in its entirety, represents solely the perspective of the author.
*Secrecy has served us so well*

@AlexDran

I have a uA1-mk2 and I don't get any freezes during playback from DVDs with UDMA enabled. I have a Pioneer DVR-107 which requires a workaround for it to work correctly, I have to disable IRQ in uboot (set a1ide_irq to 0000) and enable it using idetool early in my startup-sequence. If I don't enable IRQ, but UDMA is enabled, I get freezes when I try to play from DVD. The freeze usually happens a few seconds after the playback started. So I'm pretty sure that there's a bug in a1ide.device which happens with the combination UDMA+NO IRQ

@COBRA

ok. But other than a few devs, who is using a MKII?
Can we prove this on MKIII?

Also from DaveAE who had a MKII:

Quote:

The microA1 draws so little current that the PSU cannot stabilise properly. Well, that was the official word from Alan. It takes 35W. My 90W PSU from my Travla case didn't work, so I ordered a Morex PSU (actually, a DC-DC converter as they call it) which did work. I'm afraid it's a matter of 'luck' and it wouldn't surprise me if this is yet another flaw of the (micro)A1, although some mini-ITX x86 boards also seem to have the same problem, but it's less common.

#6

Last edited by number6 on 02-Mar-2007 at 01:05 PM.

_________________
This posting, in its entirety, represents solely the perspective of the author.
*Secrecy has served us so well*

@AlexDran

uA1-mk3/GX/256MB RAM - any freezes during playback from DVDs with UDMA enabled. I watch many videos/concerts on my micro Amiga One with DvPlayer/MPlayer and DVD/Divx playback working fine.

_________________
micro Amiga One (AmigaOS 4.1) & Amiga 1200 68k+Mediator PCI (AmigaOS 3.x)

@SZAMAN

Is it possible to have the correct setting of the jumper for the vcore ?.. i think that the problem is there..

Does anyone of you could tell us its settig ? ( micro amiga one with GX cpu )

_________________
GDG-Entertainment
OS4Games
Iksnet
Bitplane

yes, please...

_________________
uA1 750Gx AmigaOS 4.1 u6
512 MB
SIL0680
HD 120GB + HD 20GB
DVDRom + DVDWriter
WNCE2001 wifi adapter
-----------------------------
AlexDran.net

@thread

This thread has links to the documentation:
http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=19358&forum=33

It might be wise to discuss this with @sundown etc. before making any modifications.

#6

_________________
This posting, in its entirety, represents solely the perspective of the author.
*Secrecy has served us so well*

@AlexDran

I have µa1FX and raised vcore one step and its lots stable. I cant still watch all movies. Before that it sometimes crashed even when i open some apps or listened mp3. I think my vcore is 1,44 now (I can check it tomorrow).

Last edited by Tommiii on 02-Mar-2007 at 10:08 PM.