Author Topic: Cubian Desktop Hang on Cubieboardv2  (Read 5134 times)

bmarkham

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Cubian Desktop Hang on Cubieboardv2
« on: May 02, 2014, 10:18:25 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!

Offline actkk2000

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #1 on: May 04, 2014, 02:40:37 pm »
First you should check on your power source... then look for any process that could be demanding too much processor or resources...

Offline ratin

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #2 on: May 06, 2014, 09:42:53 pm »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!

Had the same issues. most probably high DRAM settings. you need to force a DRAM clock speed 384 Mhz (recompile SD bootloader) , it becomes stable at that point. See https://groups.google.com/forum/m/?fromgroups#!topic/linux-sunxi/hw0yyWFVYgM

Offline Den1982

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #3 on: May 07, 2014, 12:14:58 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!

Hi! I have the same problem! Exactly (The screen is just a blank screen of light blue.).

Had the same issues. most probably high DRAM settings. you need to force a DRAM clock speed 384 Mhz (recompile SD bootloader) , it becomes stable at that point. See https://groups.google.com/forum/m/?fromgroups#!topic/linux-sunxi/hw0yyWFVYgM

I'm newbie in linux. Whether there is an easier way to apply the patch. Maybe someone already compile bootloader. :) Please share it. :)

UPD: Oh, I am find it here:
http://www.cubieforums.com/index.php?topic=952.msg13035#msg13035
But this 432 Mhz
« Last Edit: May 07, 2014, 12:43:35 am by Den1982 »

Offline cubieplayer

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #4 on: June 23, 2014, 05:42:25 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!
This is a known issue, only happens on A20. Checkout https://github.com/cubieplayer/Cubian/issues/319
Cubian:http://cubian.org/ Cubian  Helpdesk:https://github.com/cubieplayer/Cubian/issues

Offline ratin

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #5 on: June 23, 2014, 10:03:41 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!
This is a known issue, only happens on A20. Checkout https://github.com/cubieplayer/Cubian/issues/319

If the PMU voltage outputs (from AXP209) are too conservative, it can have problem with various chips on the board, depending on their tolerance level. What appears to be least tolerant is the DRAM chip. And Nand chip is the second one I think. I think thats why lowering the DRAM speed fixed the problem.
Well its known issue but apparently not well known ;) What I am afraid of is after 3 months of testing and confirming that this probem went away, now it will require another level of testing with the new FEX settings.

Offline ratin

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #6 on: June 23, 2014, 11:34:03 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!
This is a known issue, only happens on A20. Checkout https://github.com/cubieplayer/Cubian/issues/319

Hi Cubieplayer, Have you tried the updated fex settings with the SD boot loader?

Offline cubieplayer

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #7 on: June 24, 2014, 12:52:54 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!
This is a known issue, only happens on A20. Checkout https://github.com/cubieplayer/Cubian/issues/319

Hi Cubieplayer, Have you tried the updated fex settings with the SD boot loader?
We only needs to change script.bin, is it related to u-boot?
Cubian:http://cubian.org/ Cubian  Helpdesk:https://github.com/cubieplayer/Cubian/issues

Offline ratin

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #8 on: June 24, 2014, 11:58:34 am »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!
This is a known issue, only happens on A20. Checkout https://github.com/cubieplayer/Cubian/issues/319

Hi Cubieplayer, Have you tried the updated fex settings with the SD boot loader?
We only needs to change script.bin, is it related to u-boot?

yes u-boot reads that file, and I have seen the Nand boot loader does not honor the settings, while SD boot loader does (you put the script.bin in SD boot partition)

Offline cubieplayer

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Re: Cubian Desktop Hang on Cubieboardv2
« Reply #9 on: June 24, 2014, 05:43:20 pm »
Hi!

I downloaded the Cubian Desktop r1 SD image for A20 cubieboard.  It works very nicely except ... it seems at random, even if I just leave it sitting alone for an hour or so, it will completely lock up.

The screen is just a blank screen of light blue.  Unresponsive to keyboard.

Can't get in via ssh either.

The only light on is the power light when it hangs.  When it hangs, it can be turned off with the power button but otherwise seems unresponsive. 

Any ideas? 

Thank you!
This is a known issue, only happens on A20. Checkout https://github.com/cubieplayer/Cubian/issues/319

Hi Cubieplayer, Have you tried the updated fex settings with the SD boot loader?
We only needs to change script.bin, is it related to u-boot?

yes u-boot reads that file, and I have seen the Nand boot loader does not honor the settings, while SD boot loader does (you put the script.bin in SD boot partition)
nand boot loader will load script.bin accordingly, if it isn't there is a bug, could you be more specific? which board, what version of cubian-nandinstall ?
Cubian:http://cubian.org/ Cubian  Helpdesk:https://github.com/cubieplayer/Cubian/issues