Screen flickering after a GNOME screen blanking

MNT Pocket Reform
1

Hello,

I have noticed that screen starts flickering after it wakes up from blanking and/or locking in GNOME. Sometimes flickering is so severe that it is unworkable, sometimes flickering is not as obvious. It requires power cycling in order to stop the flickering.

Also noticed that system does not power down all the way on “Power off,” I need to go keyboard OLED menu and power off after the OS shutdown.

Here is current reform-check result:

shigeru@mntpr-0:~$ sudo reform-check
I: Contents of /proc/device-tree/model: MNT Pocket Reform with i.MX8MP Module
I: `uname -a` output: Linux mntpr-0 6.15.3-mnt-reform-arm64 #1 SMP Debian 6.15.3-1~exp1+reform20250624T140900Z (2025-06-24) aarch64 GNU/Linux
I: Version of linux-image-mnt-reform-arm64: 6.15.3-1~exp1+reform20250624T140900Z
I: Version of reform-tools: 1.74-1+reform20250622T103710Z+1
I: Mount source of /: /dev/reformvg/root (LVM vg 'reformvg' on LUKS device 'reform_crypt' on SSD)
I: Mount source of /boot: /dev/mmcblk2p1 (eMMC)
E: Your /etc/skel/.profile contains an outdated line that attempts to print /etc/reform-help or run reform-help.
E: Consider simply deleting that offending last line of your /etc/skel/.profile.
I: the following files differ from how they are shipped by reform-tools (ignore /var/lib/alsa/asound.state):
??5??????   /var/lib/alsa/asound.state
2

Same happens for me using sway. It is really annoying. A simple reboot does not help. I’ll try the power cycle too. Thanks for reporting this.

3

I have the same issue on GNOME. I turned off screen blanking and modified the dimming to be extremely dim and I haven’t had anymore issues.

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