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#1 |
Member
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Join Date: Jan 2024
Device: Kobo/Boox
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Boox Note Air 3C Weird Screen Flickering Every Few Seconds
Sorry if this questions has already been asked.
My Boox screen has this weird static image flickering every 2 to 3 seconds which is slightly annoying particularly since I don't know why it does so. It doesn't seem to be any automatic refresh since I have the automatic refresh set to zero. The whole image, particularly in graphic novels using CDisplayEx, just flickers every couple seconds. Why does it do that since it does that with non-scrolling, static images? is there a way to stop the flickering? Thanks, G. |
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#2 |
Wizard
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Join Date: Feb 2012
Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5
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#3 |
Wizard
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Karma: 3933245
Join Date: Sep 2012
Location: Salzburg AT
Device: Bigme 3/3, Boox 4/14, Like-/Meebook 2/8, Tolino 1/10, Ki/Ko 0/8
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#4 | |
Wizard
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Karma: 12000011
Join Date: Feb 2012
Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5
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Quote:
It's hard to figure out which Onyx devices have BSR. The NoteAir3C is the first non-Tab to have BSR, or? |
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#5 |
Junior Member
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Karma: 10
Join Date: May 2024
Device: Books Air Note 3C
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Hi. I'm dealing with exactly the same issue. Screen on my device flickers every couple of seconds.I tried various auto-refresh settingsin the screensaver app but with no success so far. I really like the device but this screen flickering is really annoying.
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#6 |
Wizard
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Karma: 12000011
Join Date: Feb 2012
Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5
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So, look at the adb logcat.
Are there any Onyx that do video out over USB Type C? Check that. You could also look at real time power consumption if you intercept the battery with a monitor. You could also look for traffic over the Eink data path. Is this exactly regular or more random? |
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#7 |
Wizard
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Join Date: Sep 2012
Location: Salzburg AT
Device: Bigme 3/3, Boox 4/14, Like-/Meebook 2/8, Tolino 1/10, Ki/Ko 0/8
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BSR have all "Tab" devices NA3C and Palma - Palma was the first
Last edited by ottischwenk; 05-23-2024 at 06:54 AM. |
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#8 | |
Member
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Join Date: Jan 2024
Device: Kobo/Boox
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Quote:
It's absolutely regular, but then sometimes doesn't happen. Perhaps it's between reboots? It has shown so far in 2 apps, CDisplayEx and NeoBrowser. It's as if the display "pulsates." It's really bizarre. |
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#9 |
Wizard
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Join Date: Feb 2012
Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5
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There are three separate sources that could come into play.
Does color content vs B&W make a difference? Does changing the LED lighting make a difference? Can a video recording catch a "dip" or "flash"? Can a screen capture catch any interim effect? |
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#10 | |
Enthusiast
![]() Posts: 29
Karma: 16
Join Date: May 2023
Device: BOOX Nova Air C
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Quote:
Interestingly it will show screen updates that the device's screen driver doesn't take notice of. (In other words, the eInk display doesn't always update with what is really present and scrcpy shows) |
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#11 |
Wizard
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Join Date: Feb 2012
Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5
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No, scrcpy probably won't give me the insight I'm looking for.
My adbgrab.exe can do that too, but it's much slower because it doesn't use any other software on the Android. My understanding of "BSR" (which could be totally wrong since there is so little info). The Android puts out standard video (as for an LCD) over a DSI interface. The custom Onyx chip (with the help of its own video buffers) turns that into Eink updates. |
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