The function ply_device_manager_activate_keyboard() asserts for positive
file-descriptors.
However, the daemon aborts after the splash screen is shown again after
being hidden; the virtual terminal file-descriptor is -1 (i.e. plymouth
show-splash; plymouth hide-splash; plymouth-show-spash).
The three helpers on_show_splash(), on_hide_splash() and on_quit() share
the same function dump_details_and_quit_splash().
This function calls on_hide() and on_quit(); the later deallocates and
closes the virtual terminal if the flag should_retain_splash is not set.
This is always the case on both on_show_splash() and on_hide_splash().
Only on_quit() has the ability to set that flag. Therefore, the virtual
terminal is always deallocated and closed on on_hide_splash (), and in a
some condition on on_show_splash().
The virtual terminal is allocated by ply_device_manager_new() in the
function main() and it is deallocated in the function quit_program()
(i.e. at the begining and at the end of the daemon). The function
quit_program() is called either by on_quit() or by on_boot_splash_idle()
(on quit only, not on deactivate). The two helpers on_show_splash() and
on_hide_splash() *MUST NOT* dealocates and closes the virtual terminal.
This sets the flag should_retain_splash in both helpers on_show_splash()
and on_hide_splash() to prevent them from deallocation the virtual
terminal.
Fixes:
01:24:16.983 ply-event-loop.c:732:ply_event_loop_watch_fd : fd: 9
01:24:16.994 ply-boot-server.c:393:print_connection_process_identity : connection is from pid 8474 (plymouth show-splash) with parent pid 2137 (-ash)
01:24:16.994 ply-boot-server.c:492:ply_boot_connection_on_request : got show splash request
01:24:16.994 main.c:832:plymouth_should_ignore_show_splash_calls : checking if plymouth should be running
01:24:16.994 main.c:933:on_show_splash : at least one display already available, so loading splash
01:24:16.994 main.c:864:plymouth_should_show_default_splash : checking if plymouth should show default splash
01:24:16.994 main.c:892:plymouth_should_show_default_splash : using default splash because kernel command line has option "splash"
01:24:16.994 main.c:445:show_default_splash : Showing splash screen
01:24:16.994 main.c:459:show_default_splash : Trying distribution default splash
01:24:16.994 main.c:1692:load_theme : Loading boot splash theme '/usr/share/plymouth/themes/spinner/spinner.plymouth'
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group Plymouth Theme
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group two-step
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group boot-up
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group shutdown
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group reboot
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group updates
01:24:16.995 ply-key-file.c:175:ply_key_file_load_group : trying to load group system-upgrade
01:24:16.996 ply-key-file.c:175:ply_key_file_load_group : trying to load group firmware-upgrade
01:24:16.996 ply-key-file.c:262:ply_key_file_load_groups : key file has no more groups
01:24:16.996 plugin.c:1030:create_plugin : Using '/usr/share/plymouth/themes/spinner' as working directory
01:24:16.996 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarHorizontalAlignment'
01:24:16.996 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarVerticalAlignment'
01:24:16.996 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarWidth'
01:24:16.996 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarHeight'
01:24:16.996 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'SuppressMessages'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarShowPercentComplete'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseProgressBar'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseFirmwareBackground'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'Title'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'SubTitle'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'SuppressMessages'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarShowPercentComplete'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseProgressBar'
01:24:16.997 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseFirmwareBackground'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'Title'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'SubTitle'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'SuppressMessages'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressBarShowPercentComplete'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseProgressBar'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseFirmwareBackground'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'Title'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'SubTitle'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseFirmwareBackground'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseFirmwareBackground'
01:24:17.331 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'UseFirmwareBackground'
01:24:17.332 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'DialogClearsFirmwareBackground'
01:24:17.332 ply-key-file.c:359:ply_key_file_get_raw_value : key file does not have entry for key 'ProgressFunction'
01:24:17.332 main.c:1708:load_theme : attaching plugin to event loop
01:24:17.332 main.c:1711:load_theme : attaching progress to plugin
01:24:17.332 ply-boot-splash.c:138:ply_boot_splash_add_pixel_display : adding 1920x1080 pixel display
01:24:17.332 plugin.c:1563:add_pixel_display : adding pixel display to plugin
01:24:17.332 ply-device-manager.c:1028:ply_device_manager_activate_renderer: activating renderers
01:24:17.332 plugin.c:918:activate : taking master and scanning out
01:24:17.332 ply-terminal.c:242:ply_terminal_unlock : couldn't unlock terminal settings: Bad file descriptor
01:24:17.332 plugin.c:693:ply_renderer_head_set_scan_out_buffer : Setting scan out buffer of 1920x1080 head to our buffer
01:24:17.333 plugin.c:1693:flush_head : Needed to reset scan out buffer on 1920x1080 renderer head
01:24:17.334 ply-boot-splash.c:486:ply_boot_splash_show : showing splash screen
01:24:17.334 plugin.c:1621:show_splash_screen : loading lock image
01:24:17.335 plugin.c:1626:show_splash_screen : loading box image
01:24:17.335 plugin.c:1635:show_splash_screen : loading corner image
01:24:17.335 plugin.c:1644:show_splash_screen : loading header image
01:24:17.335 plugin.c:1653:show_splash_screen : loading background tile image
01:24:17.335 plugin.c:1681:show_splash_screen : loading watermark image
01:24:17.335 plugin.c:615:view_load : loading entry
01:24:17.340 ply-keymap-icon.c:158:ply_keymap_icon_load : loading '/usr/share/plymouth/themes/spinner/keyboard.png': success
01:24:17.495 ply-keymap-icon.c:165:ply_keymap_icon_load : loading '/usr/share/plymouth/themes/spinner/keymap-render.png': success
01:24:17.496 plugin.c:625:view_load : loading progress animation
01:24:17.497 ply-progress-animation.c:373:ply_progress_animation_add_frames: could not find any progress animation frames
01:24:17.497 plugin.c:627:view_load : optional progress animation wouldn't load
01:24:17.498 plugin.c:636:view_load : loading throbber
01:24:17.531 plugin.c:1697:show_splash_screen : starting boot animations
01:24:17.531 plugin.c:1336:start_progress_animation : starting animation
01:24:17.587 ply-terminal.c:242:ply_terminal_unlock : couldn't unlock terminal settings: Bad file descriptor
01:24:17.599 ply-terminal.c:242:ply_terminal_unlock : couldn't unlock terminal settings: Bad file descriptor
01:24:17.599 ply-device-manager.c:1061:ply_device_manager_activate_keyboard: activating keyboards
Assertion failed: fd >= 0 (ply-event-loop.c: ply_event_loop_watch_fd: 732)
Aborted
Signed-off-by: Gaël PORTAY <gael.portay@collabora.com>
The function watch_for_udev_events() asserts that udev_monitor cannot be
NULL.
This situation is actually possible and it is easy reproductible by
deactivating and reactivating the splash then.
This commit removes that assertion which is not true. Furthermore, the
function allocates a monitor if it is NULL, right after that assertion.
Fixes:
00:12:42.405 ply-boot-server.c:393:print_connection_process_identity : connection is from pid 2227 (plymouth reactivate) with parent pid 2137 (-ash)
00:12:42.405 ply-boot-server.c:521:ply_boot_connection_on_request : got reactivate request
00:12:42.405 ply-terminal.c:637:ply_terminal_open : trying to open terminal '/dev/tty1'
00:12:42.405 ply-terminal.c:430:ply_terminal_refresh_geometry : looking up terminal text geometry
00:12:42.405 ply-terminal.c:442:ply_terminal_refresh_geometry : terminal is now 240x67 text cells
00:12:42.405 ply-device-manager.c:1062:ply_device_manager_activate_keyboard: activating keyboards
00:12:42.405 ply-device-manager.c:1114:ply_device_manager_unpause : ply_device_manager_unpause() called, resuming watching for udev events
00:12:42.405 ply-device-manager.c:1118:ply_device_manager_unpause : ply_device_manager_unpause(): timeout elapsed while paused, looking for udev devices
00:12:42.406 ply-device-manager.c:909:create_devices_from_udev : Timeout elapsed, looking for devices from udev
00:12:42.406 ply-device-manager.c:331:create_devices_for_subsystem : creating objects for drm devices
00:12:42.407 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/platform/soc/soc:gpu/drm/card0
00:12:42.407 ply-device-manager.c:358:create_devices_for_subsystem : device is initialized
00:12:42.408 ply-device-manager.c:367:create_devices_for_subsystem : found node /dev/dri/card0
00:12:42.408 ply-device-manager.c:275:create_devices_for_udev_device : device subsystem is drm
00:12:42.408 ply-device-manager.c:278:create_devices_for_udev_device : found DRM device /dev/dri/card0
00:12:42.408 ply-device-manager.c:774:create_devices_for_terminal_and_rende: ignoring device /dev/dri/card0 since it's already managed
00:12:42.408 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/platform/soc/soc:gpu/drm/card0/card0-Composite-1
00:12:42.408 ply-device-manager.c:358:create_devices_for_subsystem : device is initialized
00:12:42.409 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/platform/soc/soc:gpu/drm/card0/card0-HDMI-A-1
00:12:42.409 ply-device-manager.c:358:create_devices_for_subsystem : device is initialized
00:12:42.409 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/platform/soc/soc:gpu/drm/card0/card0-Writeback-1
00:12:42.410 ply-device-manager.c:358:create_devices_for_subsystem : device is initialized
00:12:42.410 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/platform/soc/soc:gpu/drm/renderD128
00:12:42.410 ply-device-manager.c:358:create_devices_for_subsystem : device is initialized
00:12:42.410 ply-device-manager.c:371:create_devices_for_subsystem : device doesn't have a devices tag
00:12:42.410 ply-device-manager.c:331:create_devices_for_subsystem : creating objects for frame buffer devices
00:12:42.411 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/platform/soc/soc:gpu/graphics/fb0
00:12:42.412 ply-device-manager.c:358:create_devices_for_subsystem : device is initialized
00:12:42.412 ply-device-manager.c:367:create_devices_for_subsystem : found node /dev/fb0
00:12:42.412 ply-device-manager.c:275:create_devices_for_udev_device : device subsystem is graphics
00:12:42.412 ply-device-manager.c:281:create_devices_for_udev_device : found frame buffer device /dev/fb0
00:12:42.412 ply-device-manager.c:231:fb_device_has_drm_device : trying to find associated drm node for fb device (path: platform-soc:gpu)
00:12:42.418 ply-device-manager.c:285:create_devices_for_udev_device : ignoring, since there's a DRM device associated with it
00:12:42.418 ply-device-manager.c:351:create_devices_for_subsystem : found device /sys/devices/virtual/graphics/fbcon
00:12:42.418 ply-device-manager.c:374:create_devices_for_subsystem : it's not initialized
Assertion failed: manager->udev_monitor == NULL (ply-device-manager.c: watch_for_udev_events: 461)
Aborted
Signed-off-by: Gaël PORTAY <gael.portay@collabora.com>
The plugin two-step cannot be loaded on a system based on the musl libc
library.
01:25:00.427 ply-utils.c:536:ply_open_module : Could not load module "/usr/lib/plymouth/two-step.so": Error relocating /usr/lib/plymouth/two-step.so: libintl_dgettext: symbol not found
The utilities ldd and objdump reports the missing symbol:
# ldd /usr/lib/plymouth/two-step.so
/lib/ld-musl-aarch64.so.1 (0x7fad6c0000)
libply-splash-graphics.so.5 => /usr/lib/libply-splash-graphics.so.5 (0x7fad683000)
libply-splash-core.so.5 => /lib/libply-splash-core.so.5 (0x7fad654000)
libply.so.5 => /lib/libply.so.5 (0x7fad629000)
libc.musl-aarch64.so.1 => /lib/ld-musl-aarch64.so.1 (0x7fad6c0000)
libpng16.so.16 => /usr/lib/libpng16.so.16 (0x7fad5ea000)
libudev.so.1 => /lib/libudev.so.1 (0x7fad5b7000)
libz.so.1 => /lib/libz.so.1 (0x7fad590000)
Error relocating /usr/lib/plymouth/two-step.so: libintl_dgettext: symbol not found
# objdump -T /usr/lib/plymouth/two-step.so | grep gettext
0000000000000000 D *UND* 0000000000000000 libintl_dgettext
The missing symbol is archived to the library libintl.so (running
plymouthd with the environment LD_PRELOAD=/usr/lib/libintl.so fixes the
issue).
# objdump -T /usr/lib/libintl.so | grep gettext
0000000000005aa0 g DF .text 0000000000000008 libintl_dngettext
0000000000007134 g DF .text 0000000000000004 dgettext
0000000000002300 g DF .text 0000000000000014 libintl_dcgettext
0000000000005aa8 g DF .text 0000000000000018 libintl_ngettext
0000000000007130 g DF .text 0000000000000004 gettext
0000000000007140 g DF .text 0000000000000004 dngettext
0000000000002314 g DF .text 0000000000000008 libintl_dgettext
000000000000231c g DF .text 0000000000000010 libintl_gettext
0000000000007138 g DF .text 0000000000000004 dcgettext
000000000000713c g DF .text 0000000000000004 ngettext
0000000000005a90 g DF .text 0000000000000010 libintl_dcngettext
0000000000007144 g DF .text 0000000000000004 dcngettext
The story is much complicated, however, the autotools does the magic.
The GNU gettext FAQ[1] says explicitly that if the program's final link
command does not contain the option -lintl...
> In this case it's likely a bug in the package you are building: The
package's Makefiles should make sure that “-lintl” is used where needed.
Autoconf sets both variables LIBINTL and LTLIBINTL with the appropriate
link options if NLS is being used. These variables are left empty if the
option --disable-nls is set at the configure step.
LIBINTL = /usr/lib/libintl.so
LTLIBINTL = -L/usr/lib -lintl
This links the plugin two-step to libintl by adding the libtool variable
LTLIBINTL to the list of the plugin's libraries to link with.
Note: The plugin two-step loads fine on a system based on the glibc
library (without this commit). The plugin uses the intermediate symbol
dcgettext which is implemented by the glibc instead of the remapped
symbol libintl_gettext which is implemented by gettext in libintl.
On glibc:
# objdump -T /usr/lib/plymouth/two-step.so | grep gettext
0000000000000000 DF *UND* 0000000000000000 GLIBC_2.2.5 dcgettext
$ objdump -T /usr/lib/libc.so.6 | grep gettext
0000000000037ec0 w DF .text 0000000000000014 GLIBC_2.2.5 dcngettext
0000000000036630 w DF .text 0000000000000013 GLIBC_2.2.5 dcgettext
0000000000037ef0 w DF .text 000000000000001a GLIBC_2.2.5 ngettext
0000000000036660 w DF .text 0000000000000013 GLIBC_2.2.5 gettext
0000000000036630 g DF .text 0000000000000013 GLIBC_2.2.5 __dcgettext
0000000000036650 w DF .text 000000000000000e GLIBC_2.2.5 dgettext
0000000000036650 g DF .text 000000000000000e GLIBC_2.2.5 __dgettext
0000000000037ee0 w DF .text 000000000000000f GLIBC_2.2.5 dngettext
On musl:
# objdump -T /usr/lib/plymouth/two-step.so | grep gettext
0000000000000000 D *UND* 0000000000000000 libintl_dgettext
# objdump -T /lib/libc.musl-aarch64.so.1 | grep gettext
0000000000025724 g DF .text 0000000000000010 dcgettext
0000000000027828 g DF .text 0000000000000014 ngettext
0000000000025734 g DF .text 0000000000000008 dngettext
000000000002573c g DF .text 0000000000000010 dgettext
000000000002781c g DF .text 000000000000000c gettext
0000000000025294 g DF .text 0000000000000490 dcngettext
# objdump -T /usr/lib/libintl.so | grep libintl_dgettext
0000000000002314 g DF .text 0000000000000008 libintl_dgettext
However, this commit changes nothing for system based on glibc as the
magic of the Autoconf leaves the LIBINTL and LTLIBINTL empty even if the
NLS is being used.
[1]: https://www.gnu.org/software/gettext/FAQ.html#integrating_undefined
Signed-off-by: Gaël PORTAY <gael.portay@collabora.com>
Currently translated at 100.0% (7 of 7 strings)
Translated using Weblate (Malay)
Currently translated at 100.0% (7 of 7 strings)
Added translation using Weblate (Malay)
Co-authored-by: Robbi Nespu <robbinespu@gmail.com>
Translate-URL: https://translate.fedoraproject.org/projects/plymouth/master/ms/
Translation: plymouth/master
copy po/Makefile.in.in from the exact gettext version. It is fine if the
version of gettext installed on the system has the same minor version
number with the requested version, but it fails if you have a newer
version of gettext because of the mismatch between autoconf macros and
Makefile.in.in.
*** error: gettext infrastructure mismatch: using a Makefile.in.in
from gettext version 0.19 but the autoconf macros are from gettext
version 0.20
Instead of specifying the exact version with AM_GNU_GETTEXT_VERSION, we
can use AM_GNU_GETTEXT_REQUIRE_VERSION to ask autopoint to simply use
the gettext version installed on the system to prevent the mismatch.
During the initial monitor/connector enumeration on boot the kernel
fires a large number of change events. If we process these 1 by 1,
we spend a lot of time probing the DRM-connectors. So instead we
collect them all and then coalescence them so that if there are multiple
change events pending for a single card, we only re-probe the card once.
Here are some numbers of the probing times before / after this patch:
1. Lenovo X1 carbon 8th gen connected to a Lenovo Thunderbolt dock gen 2
with 2 FullHD monitors connected:
Before: add event card0: 00:00:02.543 last change complete at: 00:00:04.250,
12 change events processed, 13 probes done!
After: add event card0: 00:00:02.548 last change complete at: 00:00:04.049
1 change event processed, 2 probes done!
2. Intel skylake CPU + iGPU based desktop with 2 FullHD monitors connected:
Before: add event card0: 00:00:02.394 last change complete at: 00:00:05.024,
5 change events processed, 6 probes done!
After: add event card0: 00:00:02.343 last change complete at: 00:00:03.744,
1 change event processed, 2 probes done!
In the Thunderbolt dock case we probe the DRM-connectors 2 times instead
of 13 times after this change. This does not lead to a big speed-up though
because the dock caches the monitors EDID info and the DP aux channel to
the dock is quite fast.
In the desktop case we only reduce the amount of probes from 6 to 2, so
less then in the Thunderbolt dock case, but since we don't have the EDID
caching happening there this does reduce the time which it takes to probe
the DRM-connectors from 2.6 seconds to 1.4 seconds which is a huge
improvement.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add a verify_add_or_change() helper function. This is a preparation
patch for coalescing multiple change events on the same card together
to speed up probing of the drm connectors.
Note this causes the action == "add" || action == "change" check to
be done twice. This double checking goes away in the next patch.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
on_udev_event calls either on_drm_udev_add_or_change; or
free_devices_for_udev_device. Both of these functions call
udev_device_get_devnode and are a no-op if that returns NULL.
Cleanup things by directly calling udev_device_get_devnode from
on_udev_event and exit eary if the udev_device does not have
an associated devnode.
With the udev_device_get_devnode call handled by on_udev_event,
all that is left of free_devices_for_udev_device is a single
line calling free_devices_from_device_path. So drop
free_devices_for_udev_device and directly call
free_devices_from_device_path from on_udev_event.
Note this also fixes a theoretical udev_device reference leak
in the action == NULL early-exit path. In practice action never
is NULL, so this was not really a problem. But in the refactored
code we now also do the early-exit on dev_path == NULL which does
actually happen.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Fix the following:
plugin.c: In function ‘show_splash_screen’:
plugin.c:1645:13: warning: unused variable ‘i’ [-Wunused-variable]
1645 | int i;
|
Compiler warning which I introduced in:
https://gitlab.freedesktop.org/plymouth/plymouth/-/merge_requests/132/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
We should not create (and try to use) the background_bgrt_fallback_image
when the config file has not requested use of the firmware-background.
Otherwise we will end up using bgrt-fallback.png if present even when the
config file has not requested usage of the firmware-background.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
view_set_bgrt_background() can fail even if the BGRT image was loaded
successfully. So we may need the fallback image even though the
BGRT image was loaded successfully.
This commit also fixes plugin->background_bgrt_fallback_image not being
free-ed and set to NULL when loading the fallback image fails.
Note this also drops the clearing of the use_firmware_background flagss
when we fail to load both the BGRT and the fallback images. Clearing
these flags is not necessary. They are only checked if
plugin->background_bgrt_image or plugin->background_bgrt_fallback_image
are non NULL; and if the loading of both images failed then both
are NULL.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
KillMode=none is deprecated, so we need to stop using it.
For now, use `KillMode=mixed` and `IgnoreOnIsolate=true` instead.
In the future, we should change plymouth to be able to exit and
start again without restarting the active animation, but that's
going to require some effort.
https://gitlab.freedesktop.org/plymouth/plymouth/-/issues/123
In the event that plymouthd is not responding the plymouth client will
wait forever when sending a ping to the daemon.
This commit introduces a timeout of 30 seconds to better cope with a
hung plymouthd process.
(Some small changes to original patch by Ray Strode)
https://gitlab.freedesktop.org/plymouth/plymouth/-/issues/130
