h12 monitor/graphics problem

[Igor]

I got my new h12  from Gearbest and I have a problem 🙂

The monitor will turn off if the brightness is not set to 100%. I turned off the adaptive adjustments and put it too 100% otherwise it will not work. It is the same if connected to power or not. I installed all the latest drivers, even found a driver update for the graphics card, still no luck. Chuwi support is not very helpful. Under device manager > monitor It sees the display as a generic pnp monitor.

 

Is this a hardware or software problem? any ideas how to fix this wonderful quality product?

[BoORD_L]

Look at chris review:

“Intel Graphics power settings had all the power (crippling) features enabled on battery and disabled on power”

I think you have to change settings of intel graphic driver

What I've used and what I've got:
TECLAST X98 AIR 3G, TECLAST X98 AIR II, TECLAST X98 PRO,CHUWI HI8, CHUWI HI12, CUBE I9

[Igor]

BoORD_L wrote:

Look at chris review: “Intel Graphics power settings had all the power (crippling) features enabled on battery and disabled on power” I think you have to change settings of intel graphic driver

All the settings are disabled, with the settings enabled on battery the screen would not turn on at all.

[Rene]

The dimming of the brightness is usually done using a PWM method. full brightness usually means no pulses, but a solid signal. I would say this is hardware. The driver is not capable of making these chopped pulses. Correct me if i’m wrong about the above theory, but I expect it to be a hardware issue.

[Anonymous]

It could still be a software issue. You can try by reinstalling windows 10, but I think it’s hardware. 🙁
I hope my tablet doesn’t have this issue…

When did you order the tablet? (could be a problem related to a certain batch)

[Igor]

I ordered it a week ago.

 

What kind of hardware problem could cause this? Any work arounds to dim the screen any other way? its really annoying

[Igor]

Well the tablet is dead now. it will not charge, or turn on. That was a good run. BEWARE.

[Anonymous]

I also my tablet has the same problem I think the tablet is manufactured as his 

[Igor]

which one of them?

[Anonymous]

your tablet does not work anymore

[Igor]

Did you discharge it fully? or what happened

[Chris G]

Very odd, must have received a bad unit.

Try this, hold the power button down for 15 seconds. Then wait 10 seconds, hold it down again for around 4-5 seconds. Any luck? If not hold the power button down for 15 seconds, then connect it to the charger and leave it charging over night and try again in the morning.

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[Igor]

I let it discharge fully almost. Plugged in the charger the lights started glowing, then I pressed the power button. After that the lights went off, and now no matter how much I charger it the lights will not turn on (led)… I put it on a cell phone charger 5v (after reading online) I feel the battery is getting warm but no signs of life. On the original charger the tablet is not even getting warm when charging

 

which charger should i leave it on? i was reading online about trickle charge could help

5v 1amp (usb hub) or the original charger?

 

Now if all fails. can i try to charge the battery directly using 2 wires from usb port without unsoldering connections + -? or will it fry the board, and i must unsoldering the battery connections before charging directly?

[Author]

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