Raspbery Pi 4 Touchscreen brightness not working

:pushpin:Question Description

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Please describe the problem you’ve encountered in detail:

  • Description:
    I’m just trying out FydeOs on a Raspberry Pi 4 with the official 7 inch touchscreen. First I had to change the dtoverlay in the config as described on GitHub to get the display to work:
    https://github.com/FydeOS/chromium_os-raspberry_pi/issues/16
    The display and touchscreen is now working, but I cannot change the brightness of the display using the brightness slider. But using the command backlightbacklight_tool --set_brightness=100 I can change the brightness.
    What do I have to do to get the brightness slider in the UI to work?

:computer:System & Device Information

  • Hardware & System Configuration:

    • Processor: Raspberry Pi 4
    • Graphics Card: No discrete grapics card
    • RAM: 4GB
    • FydeOS Version: v19.0
  • Relevant System Logs:

2025-01-18T12:59:41.809191Z ERR anomaly_detector[2107]: Failed to call method: org.chromium.ChromeFeaturesServiceInterface.IsFeatureEnabled: object_path= /org/chromium/ChromeFeaturesService: org.freedesktop.DBus.Error.InvalidArgs: Chrome can’t get state for ‘CrOSLateBootGravedigger’; feature_library will decide
2025-01-18T12:59:41.809278Z INFO anomaly_detector[2107]: Using gravedigger to read log files: no
2025-01-18T12:59:41.812126Z ERR anomaly_detector[2107]: Failed to call method: org.chromium.ChromeFeaturesServiceInterface.IsFeatureEnabled: object_path= /org/chromium/ChromeFeaturesService: org.freedesktop.DBus.Error.InvalidArgs: Chrome can’t get state for ‘CrOSLateBootGravedigger’; feature_library will decide
2025-01-18T12:59:41.812215Z INFO anomaly_detector[2107]: Using gravedigger to read log files: no
2025-01-18T12:59:43.518550Z INFO periodic_scheduler[1257]: cleanup_logs: job completed
2025-01-18T12:59:47.510479Z INFO periodic_scheduler[1971]: cros-machine-id-regen: running /usr/sbin/machine-id-regen --reason=periodic --minimum_age=21600
2025-01-18T12:59:47.610605Z INFO machine-id-regen[5603]: Not regenerating since we did so 326 seconds ago
2025-01-18T12:59:47.620460Z INFO periodic_scheduler[1971]: cros-machine-id-regen: job completed
2025-01-18T12:59:49.026760Z INFO periodic_scheduler[2200]: trim: running chromeos-trim
2025-01-18T12:59:49.416145Z INFO periodic_scheduler[2200]: trim: job completed
2025-01-18T12:59:50.877172Z ERR secanomalyd[1123]: opendir(/proc/5486) failed: No such file or directory (2)
2025-01-18T13:00:38.452917Z NOTICE temp_logger[5690]: cpu-thermal:40C
2025-01-18T13:01:38.493994Z NOTICE temp_logger[5723]: cpu-thermal:41C
2025-01-18T13:02:07.641708Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(1063)] Enabling DLC=sr-bt-dlc reserve.
2025-01-18T13:02:07.643415Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(1042)] Changing DLC=sr-bt-dlc state to INSTALLING
2025-01-18T13:02:07.758585Z WARNING dlcservice[1227]: WARNING dlcservice: [dlc_base.cc(438)] Verification failed for image file: /var/cache/dlc/sr-bt-dlc/package/dlc_a/dlc.img. Expected: c203e026c6814949520dca20a4f032fb3ef1a0c31009bcd6061dccdd1c6a893a Found: 332A89585CD8FBE00D942AD0EF11BF62E1D0D5301092333A309EE214CD8EEB2E
2025-01-18T13:02:08.009270Z WARNING dlcservice[1227]: WARNING dlcservice: [dlc_base.cc(438)] Verification failed for image file: /var/cache/dlc/sr-bt-dlc/package/dlc_a/dlc.img. Expected: c203e026c6814949520dca20a4f032fb3ef1a0c31009bcd6061dccdd1c6a893a Found: 332A89585CD8FBE00D942AD0EF11BF62E1D0D5301092333A309EE214CD8EEB2E
2025-01-18T13:02:08.009349Z INFO dlcservice[1227]: INFO dlcservice: [dlc_service.cc(325)] Sending request to install DLC=sr-bt-dlc
2025-01-18T13:02:08.021706Z INFO cras_server[1288]: failed to install sr-bt-dlc: DLC not installed after install call
2025-01-18T13:02:08.026944Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(407)] GetDlc(…): Domain=dbus, Code=org.chromium.DlcServiceInterface.INVALID_DLC, Message=Passed unsupported DLC=nc-ap-dlc
2025-01-18T13:02:08.027016Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(223)] Requested to install unsupported DLC=nc-ap-dlc
2025-01-18T13:02:08.027064Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(213)] [CoreServicesAlert] Failed to install DLC=nc-ap-dlc
2025-01-18T13:02:08.027550Z INFO dlcservice[1227]: INFO dlcservice: [metrics.cc(69)] InstallResult metric sent:5
2025-01-18T13:02:08.028735Z INFO cras_server[1288]: failed to install nc-ap-dlc: D-Bus failure: Passed unsupported DLC=nc-ap-dlc
2025-01-18T13:02:08.033544Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(407)] GetDlc(…): Domain=dbus, Code=org.chromium.DlcServiceInterface.INVALID_DLC, Message=Passed unsupported DLC=nuance-dlc
2025-01-18T13:02:08.033612Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(223)] Requested to install unsupported DLC=nuance-dlc
2025-01-18T13:02:08.033657Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(213)] [CoreServicesAlert] Failed to install DLC=nuance-dlc
2025-01-18T13:02:08.033999Z INFO dlcservice[1227]: INFO dlcservice: [metrics.cc(69)] InstallResult metric sent:5
2025-01-18T13:02:08.035090Z INFO cras_server[1288]: failed to install nuance-dlc: D-Bus failure: Passed unsupported DLC=nuance-dlc
2025-01-18T13:02:08.035202Z INFO cras_server[1288]: retrying DLC installation in 480s
2025-01-18T13:02:08.381104Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(637)] HandleStatus(…): Domain=dlcservice, Code=failedInstallInUpdateEngine, Message=installer indicates failure.
2025-01-18T13:02:08.381239Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(1042)] Changing DLC=sr-bt-dlc state to NOT_INSTALLED
2025-01-18T13:02:08.381872Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(895)] Skipping delete for reserved DLC=sr-bt-dlc
2025-01-18T13:02:08.382183Z INFO dlcservice[1227]: INFO dlcservice: [metrics.cc(69)] InstallResult metric sent:4
2025-01-18T13:02:38.535588Z NOTICE temp_logger[5748]: cpu-thermal:43C
2025-01-18T13:03:38.577321Z NOTICE temp_logger[5776]: cpu-thermal:44C
2025-01-18T13:04:38.617825Z NOTICE temp_logger[5809]: cpu-thermal:44C
2025-01-18T13:04:39.802360Z WARNING resourced[2206]: Unknown chrome process 910 running “nacl_helper_bootstrap”
2025-01-18T13:04:54.841291Z INFO vm_cicerone[3228]: System timezone changed, updating container timezones
2025-01-18T13:04:54.841313Z INFO vm_concierge[3219]: System timezone changed, updating VM timezones
2025-01-18T13:05:38.659676Z NOTICE temp_logger[5841]: cpu-thermal:45C
2025-01-18T13:06:38.700482Z NOTICE temp_logger[5873]: cpu-thermal:46C
2025-01-18T13:07:38.741378Z NOTICE temp_logger[5895]: cpu-thermal:45C
2025-01-18T13:08:38.782107Z NOTICE temp_logger[5927]: cpu-thermal:47C
2025-01-18T13:09:38.822888Z NOTICE temp_logger[5955]: cpu-thermal:46C
2025-01-18T13:09:41.784262Z INFO rsyslogd[343]: [origin software=“rsyslogd” swVersion=“8.2112.0” x-pid=“343” x-info=“https://www.rsyslog.com”] rsyslogd was HUPed
2025-01-18T13:10:08.039606Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(1063)] Enabling DLC=sr-bt-dlc reserve.
2025-01-18T13:10:08.041370Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(1042)] Changing DLC=sr-bt-dlc state to INSTALLING
2025-01-18T13:10:08.157170Z WARNING dlcservice[1227]: WARNING dlcservice: [dlc_base.cc(438)] Verification failed for image file: /var/cache/dlc/sr-bt-dlc/package/dlc_a/dlc.img. Expected: c203e026c6814949520dca20a4f032fb3ef1a0c31009bcd6061dccdd1c6a893a Found: 332A89585CD8FBE00D942AD0EF11BF62E1D0D5301092333A309EE214CD8EEB2E
2025-01-18T13:10:08.408592Z WARNING dlcservice[1227]: WARNING dlcservice: [dlc_base.cc(438)] Verification failed for image file: /var/cache/dlc/sr-bt-dlc/package/dlc_a/dlc.img. Expected: c203e026c6814949520dca20a4f032fb3ef1a0c31009bcd6061dccdd1c6a893a Found: 332A89585CD8FBE00D942AD0EF11BF62E1D0D5301092333A309EE214CD8EEB2E
2025-01-18T13:10:08.408668Z INFO dlcservice[1227]: INFO dlcservice: [dlc_service.cc(325)] Sending request to install DLC=sr-bt-dlc
2025-01-18T13:10:08.419943Z INFO cras_server[1288]: failed to install sr-bt-dlc: DLC not installed after install call
2025-01-18T13:10:08.426823Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(407)] GetDlc(…): Domain=dbus, Code=org.chromium.DlcServiceInterface.INVALID_DLC, Message=Passed unsupported DLC=nc-ap-dlc
2025-01-18T13:10:08.426890Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(223)] Requested to install unsupported DLC=nc-ap-dlc
2025-01-18T13:10:08.426935Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(213)] [CoreServicesAlert] Failed to install DLC=nc-ap-dlc
2025-01-18T13:10:08.427444Z INFO dlcservice[1227]: INFO dlcservice: [metrics.cc(69)] InstallResult metric sent:5
2025-01-18T13:10:08.428704Z INFO cras_server[1288]: failed to install nc-ap-dlc: D-Bus failure: Passed unsupported DLC=nc-ap-dlc
2025-01-18T13:10:08.435601Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(407)] GetDlc(…): Domain=dbus, Code=org.chromium.DlcServiceInterface.INVALID_DLC, Message=Passed unsupported DLC=nuance-dlc
2025-01-18T13:10:08.435669Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(223)] Requested to install unsupported DLC=nuance-dlc
2025-01-18T13:10:08.435714Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(213)] [CoreServicesAlert] Failed to install DLC=nuance-dlc
2025-01-18T13:10:08.436133Z INFO dlcservice[1227]: INFO dlcservice: [metrics.cc(69)] InstallResult metric sent:5
2025-01-18T13:10:08.437066Z INFO cras_server[1288]: failed to install nuance-dlc: D-Bus failure: Passed unsupported DLC=nuance-dlc
2025-01-18T13:10:08.437182Z INFO cras_server[1288]: retrying DLC installation in 960s
2025-01-18T13:10:08.853504Z ERR dlcservice[1227]: ERROR dlcservice: [dlc_service.cc(637)] HandleStatus(…): Domain=dlcservice, Code=failedInstallInUpdateEngine, Message=installer indicates failure.
2025-01-18T13:10:08.853960Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(1042)] Changing DLC=sr-bt-dlc state to NOT_INSTALLED
2025-01-18T13:10:08.854572Z INFO dlcservice[1227]: INFO dlcservice: [dlc_base.cc(895)] Skipping delete for reserved DLC=sr-bt-dlc
2025-01-18T13:10:08.854920Z INFO dlcservice[1227]: INFO dlcservice: [metrics.cc(69)] InstallResult metric sent:4
2025-01-18T13:10:38.863520Z NOTICE temp_logger[5986]: cpu-thermal:47C
2025-01-18T13:11:38.904556Z NOTICE temp_logger[6013]: cpu-thermal:48C
2025-01-18T13:12:38.945355Z NOTICE temp_logger[6040]: cpu-thermal:49C
2025-01-18T13:13:38.985807Z NOTICE temp_logger[6067]: cpu-thermal:49C
2025-01-18T13:14:17.524563Z INFO rsyslogd[343]: – MARK –
2025-01-18T13:14:39.026567Z NOTICE temp_logger[6105]: cpu-thermal:49C
2025-01-18T13:14:40.441752Z WARNING resourced[2206]: Unknown chrome process 910 running “nacl_helper_bootstrap”
2025-01-18T13:15:08.642818Z INFO root[6184]: fydeos-license-utils get disk /dev/mmcblk0 serial by lsblk
2025-01-18T13:15:08.652579Z INFO root[6185]: fydeos-license-utils get fix id by disk serial
2025-01-18T13:15:39.066922Z NOTICE temp_logger[6223]: cpu-thermal:49C
2025-01-18T13:15:47.377806Z ERR cros_healthd[1210]: PowerSupplyProperties protobuf indicates battery is not present
2025-01-18T13:15:47.456667Z ERR cros_healthd[1210]: message repeated 2 times: [ PowerSupplyProperties protobuf indicates battery is not present]
2025-01-18T13:16:39.109408Z NOTICE temp_logger[6326]: cpu-thermal:50C
2025-01-18T13:17:39.189931Z NOTICE temp_logger[6415]: cpu-thermal:52C