Reduced pen accuracy on CP1

xaelectronics commented

2019-04-09 07:55:17 -07:00

(Migrated from github.com)

CP1 - Pen location accuracy is significantly decreased around the edges of the screen after flashing custom FW. Accuracy in the center of the screen is fine. Calibration does not help.

Reflashing to original FW fixes the issue.

CP1 - Pen location accuracy is significantly decreased around the edges of the screen after flashing custom FW. Accuracy in the center of the screen is fine. Calibration does not help. Reflashing to original FW fixes the issue.

HappyZ commented

2019-04-09 11:56:59 -07:00

(Migrated from github.com)

which one were you flashed that affected pen accuracy?

xaelectronics commented

2019-04-09 12:59:09 -07:00

(Migrated from github.com)

Tried both pkgs, without mass storage and with.

Tried both pkgs, [without mass storage](https://github.com/HappyZ/dpt-tools/tree/master/fw_updater_packer_unpacker/pkg_example/flashable_mod_boot_img_no_mass_storage) and [with](https://github.com/HappyZ/dpt-tools/tree/master/fw_updater_packer_unpacker/pkg_example/flashable_mod_boot_img).

HappyZ commented

2019-04-10 15:00:11 -07:00

(Migrated from github.com)

this is interesting.. i compared the boot partitions, and CP1 and RP1 do not have difference in terms of the software configurations.. I would hope more people report a similar issue to confirm. I don't have a device, but can you show a screenshot or photo image how bad it is on the edge of the screen?

xaelectronics commented

2019-04-10 16:16:54 -07:00

(Migrated from github.com)

https://www.youtube.com/watch?v=huYzbFvKKVw

First two strokes in the top left are drawn exactly along the vertical graph line but appear shifted to the right. You can watch the video in slow motion to see it more clearly. Writing in the bottom right corner is completely screwed up.

I think it's related to the difference in display size. When I flash your custom FW, the update message that shows up is off center and partially off screen.

https://www.youtube.com/watch?v=huYzbFvKKVw First two strokes in the top left are drawn exactly along the vertical graph line but appear shifted to the right. You can watch the video in slow motion to see it more clearly. Writing in the bottom right corner is completely screwed up. I think it's related to the difference in display size. When I flash your custom FW, the update message that shows up is off center and partially off screen.

HappyZ commented

2019-04-11 10:48:00 -07:00

(Migrated from github.com)

I only find one single kernel object in cp1 package that differs from rp1 and im not sure if it is related to your problem. Try this PKG: https://github.com/HappyZ/dpt-tools/blob/master/fw_updater_packer_unpacker/pkg_example/flashable_mod_boot_img_no_mass_storage_cp1/FwUpdater.pkg

If it doesn't solve the problem, I would have no idea why it happens. Let me know.

I only find one single kernel object in cp1 package that differs from rp1 and im not sure if it is related to your problem. Try this PKG: https://github.com/HappyZ/dpt-tools/blob/master/fw_updater_packer_unpacker/pkg_example/flashable_mod_boot_img_no_mass_storage_cp1/FwUpdater.pkg If it doesn't solve the problem, I would have no idea why it happens. Let me know.

HappyZ commented

2019-04-11 10:59:02 -07:00

(Migrated from github.com)

6929d2eeae
here shows the only difference in git

https://github.com/HappyZ/dpt-boot-img/commit/6929d2eeaec88ee2a6d0df06a2b3e93cde15dd91 here shows the only difference in git

HappyZ commented

2019-04-17 14:08:50 -07:00

(Migrated from github.com)

@xaelectronics does it work?

iuyo5678 commented

2019-04-20 06:45:45 -07:00

(Migrated from github.com)

I also met the same problem, and finally had to use the official firmware....

HappyZ commented

2019-05-17 21:56:10 -07:00

(Migrated from github.com)

firmware is being updated and both device firmwares are unified, closed as I expect there are no more issues related to the script; any further inaccuracy issue shall direct to the dpt company

Reduced pen accuracy on CP1 #85