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topjohnwu / Magisk

The Magic Mask for Android
GNU General Public License v3.0
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Moto G7 power: installing Magisk leads to heavy graphical glitches #4514

Closed RalfJung closed 3 years ago

RalfJung commented 3 years ago

After installing Magisk on the Moto G7 power, the screen starts acting up: everything is normal right after boot, but when turning the screen off an on again, all colors are wrong -- like when someone randomized the color palette of a GIF file. This seems to be a common problem with this device.

To fix this, I have to uninstall Magisk and then do a factory reset -- the issue somehow persists even once Magisk is gone.

Magisk log file: magisk_log_2021-07-24T11_03_39Z.log

Device: Moto G7 Power ("ocean") Android version: LineageOS 18.1 Magisk version name: v23 Magisk version code: 23001

osm0sis commented 3 years ago

You're going to need a logcat and dmesg while you're at it. The fact that it persists suggests some kind of issue with calibration files for example. Must be something your device doesn't like about zygote forking or something.

RalfJung commented 3 years ago

Here's an adb logcat that starts as close to the device boot as I could make it: bootlog.txt

And here's the output of adb shell dmesg (after adb root): dmesg.txt

Are those the logs you were asking for?

RalfJung commented 3 years ago

The fact that it persists suggests some kind of issue with calibration files for example.

Is there any way to reset those? I am trying really hard to find away to get rid of this glitch without wiping the data partition, and so far I failed. This would be useful to at least temporarily have root... I did try to fastboot flash boot_a and fastboot flash boot_b the original boot.img back, and even to reinstall LineageOS entirely, but none of that helped. Neither did properly powering off the device (instead of just rebooting all the time).

RalfJung commented 3 years ago

Actually it might be that this problem is triggered reliably by Magisk, but can arise even without: https://www.reddit.com/r/LineageOS/comments/mmwuli/lineage_os_181_moto_g7_power_ocean_issues/ https://www.reddit.com/r/LineageOS/comments/mmxvm7/colors_glitched_wrong_looks_like_negatives_on/

npjohnson commented 3 years ago

Yeah, this isn't magisk's fault at all, custom ROM bug.