i got an error when try starting Ubuntu touch , i saw logo UBport but reboot few second
here is deviceinfo :
ydeviceinfo_name="Samsung Galaxy Tab A7 Lite"
deviceinfo_manufacturer="Samsung"
deviceinfo_codename="gta7litewifi"
deviceinfo_arch="aarch64"
deviceinfo_halium_version="12"
deviceinfo_kernel_source="https://github.com/gta7lite/android_kernel_samsung_ot8.git"
deviceinfo_kernel_source_branch="halium-12"
deviceinfo_kernel_defconfig="gta7litewifi_defconfig halium.config"
deviceinfo_kernel_clang_compile="true"
deviceinfo_kernel_llvm_compile="true"
deviceinfo_kernel_image_name="Image.gz"
deviceinfo_kernel_cmdline="bootopt=64S3,32N2,64N2 systempart=/dev/mapper/system console=tty0 androidboot.selinux=permissive"
deviceinfo_bootimg_header_version="2"
deviceinfo_bootimg_partition_size="33554432"
deviceinfo_bootimg_os_version="12"
deviceinfo_bootimg_os_patch_level="2021-09"
deviceinfo_ramdisk_compression="lz4"
deviceinfo_flash_pagesize="2048"
deviceinfo_flash_offset_base="0x00000000"
deviceinfo_flash_offset_kernel="0x40080000"
deviceinfo_flash_offset_ramdisk="0x51b00000"
deviceinfo_flash_offset_second="0x00f00000"
deviceinfo_flash_offset_tags="0x47880000"
deviceinfo_flash_offset_dtb="0x47c80000"
deviceinfo_dtb="gta7litewifi_dtb"
deviceinfo_use_mir_gles2="false"
deviceinfo_use_alternative_fb_detection="true"
deviceinfo_graphics_drm_device="/dev/dri/card0"
deviceinfo_gralloc="gbm"
deviceinfo_ubuntu_touch_release="24.04-1.x"
deviceinfo_rootfs_image_sector_size="4096"
deviceinfo_system_partition_size="3600M"
deviceinfo_rootfs_image_size="1310720"
and log
[mirserver] Starting
[mirserver] Selected driver: ubports:android2 (version 1.8.0)
library "libpq_cust.so" not found
library "libGL.so" not found
[info] No device yaml config found!
I/O warning: faied to load "/vendor/etc/cust_pq.xml"
[android/server] Error opening HWC HAL
[android/server] hotplug: Adding display 0
[android/server] Found 1 matching egl configs
[android/server] Selected Mir display format: 1
[GLRenderer] EGL vendor: Android
[GLRenderer] GL vendor: Imagination Technologies
[GLRenderer] GL renderer: PowerVR Rogue GE8320
[GLRenderer] GL version: OpenGL ES 3.2
[mirserver] Initial display configuration:
Output 1: LVDS connected
Resolution: 800x1340
[android/server] error during hwc set(). rc = 6
ERROR: gralloc_module.cpp(75): buffer allocation failed
errno = -5 (Unknown error)
free(): invalid pointer
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/51-lomiri-greeter.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/52-ubuntu-touch.conf
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/90-phablet.conf
[+0.00s] DEBUG: [SeatDefaults] is now called [Seat:*], please update this configuration
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.00s] DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
[+0.01s] DEBUG: Monitoring logind for seats
[+0.01s] DEBUG: New seat added from logind: seat0
[+0.01s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.01s] DEBUG: Seat seat0 has property CanMultiSession=no
[+0.01s] DEBUG: Seat seat0: Starting
[+0.02s] DEBUG: Using VT 1
[+0.02s] DEBUG: Unity System Compositor: Logging to /var/log/lightdm/unity-system-compositor.log
[+0.02s] DEBUG: Launching process 2448: /usr/share/ubuntu-touch-session/lsc-wrapper --file '/run/mir_socket' --from-dm-fd 11 --to-dm-fd 14 --vt 1
[+0.02s] DEBUG: Unity System Compositor: Waiting for system compositor for 60s
[+0.02s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.02s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.03s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.03s] DEBUG: User /org/freedesktop/Accounts/User32011 added
[+4.12s] DEBUG: Unity System Compositor: Compositor closed communication channel
[+4.12s] WARNING: ../../../glib/gmain.c:5802: waitid(pid:2448, pidfd=15) failed: Invalid argument (22). See documentation of g_child_watch_source_new() for possible causes.
....
[+4.12s] DEBUG: Unity System Compositor: Unity system compositor stopped
[+4.12s] DEBUG: Releasing VT 1
[+4.12s] DEBUG: Seat seat0: Compositor stopped
[+4.12s] DEBUG: Seat seat0: Stopping
[+4.12s] DEBUG: Seat seat0: Stopped
[+4.12s] DEBUG: Required seat has stopped
[+4.12s] DEBUG: Stopping display manager
[+4.12s] DEBUG: Display manager stopped
[+4.12s] DEBUG: Stopping daemon
[+4.14s] DEBUG: Exiting with return value 1
Native Ubuntu Touch / Sailfish / Mer NOT POSSIBLE on this device because:
️ Modifying the kernel config has no practical effect"
