Onyx Boox as monitor

[Staphoent]

Originally Posted by mdp

The HDMI transmission may carry updates every period, and? What would you entail? Your concern is not clear.
The EPD changes its state on differentials only.

I guess my point is this, with the Max 2 I can get 10 hours of reading on one full charge if I am using the android system and reader, reading pdf's. However if I use the Max 2 as a secondary monitor to do reading, if I don't plug in the usb the battery only lasts about 90 mins.

This seemed to support booxtors belief that the max 2 when in monitor mode, the pixels were being refreshed many times per second via the h d mi and that was causing the high battery consumption.

If such is not the case, for what reason is the consumption so much higher when on appearance the screen is displaying the exact same thing when used as a monitor to read pdf's as apposed to when being used as a tablet to read pdf's?

[mdp]

Originally Posted by Staphoent

This seemed to support booxtors belief that the max 2 when in monitor mode, the pixels were being refreshed many times per second via the h d mi and that was causing the high battery consumption

"belief"? You do not actually see them?
Verify.

[Staphoent]

Originally Posted by mdp

"belief"? You do not actually see them?
Verify.

Well there clearly must be something causing the huge difference in current consumption between reading pdfs on the tablet apps and reading pdf's while using the tablet as a secondary monitor.

If it is not the case that the tablet is having to constantly be reading/applying a 33hz signal from the HDMI connection to the computer (as booxtor suggested) what are you proposing is the cause in the huge difference in current consumption?

As previously stated my aim to is be able to use my max 2 as an external monitor outside for more than an hour and a half to read pdf's, the same way kindle can last for days reading pdf's I cannot understand, if the tablet when in mirror mode is only being updated every time I change pdf page, why ishte battery consumption so poor, but 10 x butter when I read pdf's purely on the tablet.

[Staphoent]

Originally Posted by mdp

"belief"? You do not actually see them?
Verify.

furthermore, regarding vnc servers over usb, will they send information on a hz basis or will they only send information when there is actually movement of pixels?

[Waiting4somethin]

Originally Posted by Staphoent

furthermore, surely the computer is still sending a screen update 33 (33hz is what my Mac reads for onyx max 2) times a second to the boox?

Did the usb onyx monitor apps work like this or did they only send an update when a pixel changed?

Any help will be appreciated

I would hazard a guess the onyx usb monitor app updates only in accordance with its own screen rate, and is supposed to update only when pixels on the desktop change. However, as mentioned earlier, it seems some devices cause it to update constantly, causing battery loss, but on some devices it functions normally.

[mdp]

Originally Posted by Staphoent

If it is not the case that the tablet is having to constantly be reading/applying a 33hz signal from the HDMI connection to the computer (as booxtor suggested)

Booxtor did not suggest that.

One thing at a time. The swarm of dots is very visible to the average naked eye, otherwise visibie to cameras, magnifying glasses etc. In your case, is it there or not?

[mdp]

Originally Posted by Staphoent

furthermore, regarding vnc servers over usb, will they send information on a hz basis or will they only send information when there is actually movement of pixels?

VNC data (RFB) is of course compressed - otherwise it would be badly done.

[mdp]

Originally Posted by Waiting4somethin

I would hazard a guess the onyx usb monitor app updates only in accordance with its own screen rate

Yes but he means (I think) that through the HDMI cable truckloads of redunant data may transmitted and the Monitor software app is wasting battery processing that.

To assess this theory, use a battery monitor like GSam and check whether the consumption hits against "Screen" or "App: Monitor".
Verification which would be absurd ("Oh, you have a fever! [And three gunshots]") if he does not first just look closely at the screen and check if the dots are stable or swarming.

[JawadLeLogeur]

On the wiki it says the Note can be used as a secondary monitor, but only in an upcoming Pro version. Is this still accurate?

[Staphoent]

Originally Posted by mdp

Booxtor did not suggest that.

One thing at a time. The swarm of dots is very visible to the average naked eye, otherwise visibie to cameras, magnifying glasses etc. In your case, is it there or not?

the 'swarm'/flickering you are referring to I have seen before, and does display on rare occasions when I move the mouse, however it does not display when im reading pdf's at least to the naked eye, everything looks very still

[Staphoent]

Originally Posted by mdp

Yes but he means (I think) that through the HDMI cable truckloads of redunant data may transmitted and the Monitor software app is wasting battery processing that.

To assess this theory, use a battery monitor like GSam and check whether the consumption hits against "Screen" or "App: Monitor".
Verification which would be absurd ("Oh, you have a fever! [And three gunshots]") if he does not first just look closely at the screen and check if the dots are stable or swarming.

the dots definitely appear stable, I will install a battery monitor and see what information it c comes up with

[Waiting4somethin]

Originally Posted by JawadLeLogeur

On the wiki it says the Note can be used as a secondary monitor, but only in an upcoming Pro version. Is this still accurate?

I don't know, but I certainly hope so.

[mdp]

Originally Posted by Staphoent

the 'swarm'/flickering you are referring to I have seen before, and does display on rare occasions when I move the mouse, however it does not display when im reading pdf's at least to the naked eye, everything looks very still

And when you use Grayscale Update ("normal") mode instead of A2 ("fast") mode, e.g. through my modification of the original app, what happens - video effect anomaly wise and battery wise?

EDIT: in A2, because of the specific computation of its joint dithering, when you change a minimal part of the screen (e.g. mouse cursor position),_all_ of the pixels are recomputed and most dots of the display change.
In GU, if you move the mouse cursor (or any other displayed item etc.), only the relevant dots change.

[inudaisho]

i will explain my idea "1bit-by-1bit mode".
2104x1560 is not full usage of Boox Max2 display but enough big (2104x1560 ) / (2200x1650) = 0.9
so we make a smaller window(2104x1560) and project display image to the smaller window.
it is useful to make the window size unfixed (1024x768, 1920x1080...).

is it possible?

[Staphoent]

Originally Posted by mdp

And when you use Grayscale Update ("normal") mode instead of A2 ("fast") mode, e.g. through my modification of the original app, what happens - video effect anomaly wise and battery wise?

EDIT: in A2, because of the specific computation of its joint dithering, when you change a minimal part of the screen (e.g. mouse cursor position),_all_ of the pixels are recomputed and most dots of the display change.
In GU, if you move the mouse cursor (or any other displayed item etc.), only the relevant dots change.

ahh that makes sense, where do I find your 'modification' of the original app, I wasn't aware of its existence.