Proposing next improved code
At src/libply-splash-core/ply-device-manager.c
1) at
create_devices_for_subsystem (ply_device_manager_t *manager,
const char *subsystem)
change
found_device = create_devices_for_udev_device (manager, device);
into
found_device = found_device || create_devices_for_udev_device (manager,
device);
2) at
create_devices_for_terminal_and_renderer_type (ply_device_manager_t *manager,
const char
*device_path,
ply_terminal_t *terminal,
ply_renderer_type_t
renderer_type)
change
return;
into
return false;
Notes at 1);
As can be seen at the downloaded grub-trace, the graphical splash with keyboard
is activated on 2 screens,
before the device-timeout (which is set to 10.0).
After the device-timeout routine create_devices_from_udev will call
create_devices_for_subsystem (manager, SUBSYSTEM_DRM).
This routine should return true if any drm-device is found. Because of the
wrong code it returns only true
if the last device is coorect.
As can be seen at the downloaded grub-trace the last device /dev/dri/renderD128
is not usable.
This causes at the trace-message: create_devices_from_udev:Creating
non-graphical devices, since there's no suitable graphics hardware.
This causes the second unwanted call to
create_devices_for_terminal_and_renderer_type for non-graphical /dev/tty1, also
listening to keyboard.
Notes at 2)
This is the solution for a compiler warning. It is just wrong coding, do not
know if it will ever harm.
Remark:
For some reason at my PC the drm-devices are comimg up very slow at 18.10 (22
sec) compared to 18.04 (3 sec).
To avoid the ugly text splash I had to enlarge DeviceTimeout from default 5 to
10. This does not slow down startuptime.
cat /etc/plymouth/plymouthd.conf
# Administrator customizations go in this file
[Daemon]
Theme=solar
ShowDelay=0
DeviceTimeout=10
** Attachment added: "plymouth-debug_GK7.log"
https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1794292/+attachment/5207296/+files/plymouth-debug_GK7.log
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1794292
Title:
plymouthd crashed with SIGSEGV in /sbin/plymouthd:11 in
ply_renderer_set_handler_for_input_source ->
ply_keyboard_stop_watching_for_renderer_input ->
ply_keyboard_stop_watching_for_input ->
ply_device_manager_deactivate_keyboards -> on_deactivate
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