Rockbox Ports are now being developed for various digital audio players!
Hello!On the latest dev. build (d64ff86) the display keeps working when backlight is off: https://imgur.com/ge7VyK6.gifv
Quote from: Dulus_No on June 21, 2018, 11:07:46 AMHello!On the latest dev. build (d64ff86) the display keeps working when backlight is off: https://imgur.com/ge7VyK6.gifvAnyone can confirm this? I can't reproduce. Anyway which player (T6, Rocker v1, Rocker v2), which original firmware version? Are you able to hook ADB?
C:\adb>adb devicesList of devices attached0123456789ABCDEF device
Quote from: pizza on June 20, 2018, 07:25:04 PMBTW, one more for the bug/quirk list -- When audio playback starts (or resumes) there is sometimes an audible pop/click -- Several theories (codec automatically going into powersave mode?) but no way to really confirm anything since I still can't get ADB to work. (Is there some trick involved beyond launching it via the bootloader?)I didn't spot this pop/click but I don't use Rocker daily. Anyway I am afraid there is nothing I can do about this.There are reports that you need to use adb older than 1.0.37 on PC. Personally I use 1.0.32 without problems. Another thing is that you cannot use ADB and run original firmware. Hiby player seems to intentionally overwrite android usb gadget settings breaking adb.
BTW, one more for the bug/quirk list -- When audio playback starts (or resumes) there is sometimes an audible pop/click -- Several theories (codec automatically going into powersave mode?) but no way to really confirm anything since I still can't get ADB to work. (Is there some trick involved beyond launching it via the bootloader?)
Benjie T6, orig. firmware from 【AGPTEK】ROCKER UPT1.2 (AGPTEK_ROCKER(20171101).rar)I think adb is working:Code: [Select]C:\adb>adb devicesList of devices attached0123456789ABCDEF device
Ok, run adb shell and then issue echo 1 > /sys/class/graphics/fb0/blank. This should blank the screen obviously. Write 0 to unblank. Report if this works.
Anyone can confirm this? I can't reproduce. Anyway which player (T6, Rocker v1, Rocker v2), which original firmware version? Are you able to hook ADB?
echo 1 - backlight off, screen still displays (usb plug image) and stops refreshing (time on status bar).echo 0 - backlight on, screen is frozen (still displays usb image), can blindly navigate and play music.
So something is wrong with linux driver then. Besides it is strange you can easily see something on lcd with backlight off. Could you try to upgrade OF to 1.4 (patched with rockbox bootloader of course)?
Quote from: pizza on June 20, 2018, 07:25:04 PMBTW, one more for the bug/quirk list -- When audio playback starts (or resumes) there is sometimes an audible pop/click -- Several theories (codec automatically going into powersave mode?) but no way to really confirm anything since I still can't get ADB to work. (Is there some trick involved beyond launching it via the bootloader?)I didn't spot this pop/click but I don't use Rocker daily. Anyway I am afraid there is nothing I can do about this.
There's a click that happens ~3s after pausing playback. Its intensity is unaffected by the selected output volume. It's probably due to the codec's amp being powered down after a period of silence, most likely by logic in the kernel's driver. Changing the output port to something other than '2' (ie headphone) produces an immediate click/pop, so that approach won't work either.So we're basically boned without the kernel sources (or the ability to roll our own..) Has anyone attempted to get them from AGPtek or Benjie? EDIT: Saw that neither is cooperating. A pity.
* Holding down select when plugging it into a PC still results in the SD card being remotely mounted/accessible, even while rockbox is still actively playing. This causes ...problems.
I tried on my player and I don't get any pop. Do you happen to use very sensitve headphones?
I guess this is with ADB enabled in bootloader. Try without enabling adb and report back if you still see this.
setting gain from 3 to 0 helps a little bit with noise
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