#728 Timing of Flash triggering causes nearly black photos

[Anonymous]

have started using a Galaxy S10 plus. My previous phone was a Motorola droid razor. There is a problem with the Flash in this new phone. It doesn't seem to trigger correctly, and result is a nearly black photo.

The Samsung camera app does not have this problem. My droid razor also did not have this problem. I am copying my specifications of the phone below

[Anonymous]

Open Camera v1.48.1
Code: 77
Package: net.sourceforge.opencamera
Android API version: 29
Device manufacturer: samsung
Device model: SM-G975U
Device code-name: qcom
Device variant: beyond2q
Language: en
Standard max heap?: 256
Large max heap?: 512
Display size: 1440x2730
Display metrics: 1440x2730
Current camera ID: 0
No. of cameras: 4
Multi-camera?: true
Camera API: Camera2 (Android L)
Photo mode: Standard
Preview resolutions: 1920x1080, 1280x720, 2288x1080, 1920x910, 960x540, 1440x1080, 1280x960, 1088x1088, 960x720, 720x480, 640x480, 352x288, 320x240, 176x144
Preview resolution: 1920x1080
Photo resolutions: 4032x3024, 4032x2268, 3024x3024, 3840x2160, 4032x1908, 2288x1080, 1920x1080, 1920x910, 1440x1080, 1280x960, 1088x1088, 1280x720, 960x720, 960x540, 720x480, 640x480, 352x288, 320x240, 176x144
Photo resolution: 3840x2160
Video qualities: 1, 6_r4032x1908, 6_r2288x1080, 6, 5_r1920x910, 5_r1440x1080, 5_r1280x960, 5_r1088x1088, 5, 4_r960x720, 4_r960x540, 4, 7_r640x480, 7_r352x288, 7, 2
Video resolutions: 3840x2160, 4032x1908, 2288x1080, 1920x1080, 1920x910, 1440x1080, 1280x960, 1088x1088, 1280x720, 960x720, 960x540, 720x480, 640x480, 352x288, 320x240, 176x144
Video quality: 6
Video frame width: 1920
Video frame height: 1080
Video bit rate: 3000000
Video frame rate: 30
Video capture rate: 30.0
Video high speed: false
Video capture rate factor: 1.0
Auto-level?: Available
Auto-level enabled?: false
Face detection?: Available
RAW?: Available
HDR?: Available
Panorama?: Available
Gyro sensors?: Available
Expo?: Available
Expo compensation?: Available
Exposure compensation range: -20 to 20
Manual ISO?: Available
ISO range: 50 to 3200
Manual exposure?: Available
Exposure range: 41280 to 976800000
Manual WB?: Available
WB temperature: 1000 to 15000
Optical stabilization?: Available
Optical stabilization enabled?: true
Video stabilization?: Available
Video stabilization enabled?: false
Tonemap curve?: Available
Tonemap max curve points: 64
Can disable shutter sound?: Available
Camera view angle: 66.559555 , 38.74314
Flash modes: flash_off, flash_auto, flash_on, flash_torch, flash_red_eye
Focus modes: focus_mode_auto, focus_mode_macro, focus_mode_locked, focus_mode_infinity, focus_mode_manual2, focus_mode_continuous_picture, focus_mode_continuous_video
Color effects: none, mono, negative, sepia
Scene modes: auto, action, portrait, landscape, night, night-portrait, theatre, beach, snow, sunset, fireworks, sports, party, candlelight
White balances: auto, manual, incandescent, fluorescent, warm-fluorescent, daylight, cloudy-daylight, twilight, shade
Magnetic accuracy?: -1
Using SAF?: false
Save Location: OpenCamera
Save Location SAF:
Parameters: None

[Anonymous]

Same problem on pixel 4, picture is taken only after the flash.

[Anonymous]

Same issue here. Using Graphene OS with Google Pixel4a. All photos in dark light with using the flash turn out black.

[Anonymous]

SOLUTION

I am the Graphene OS user from upper post. Had issues with black pictures while using the flash. Activated Settings/Photo settings/"Use alternative flash method" (towards the bottom) and problem is solved! Thank you!

[Anonymous]

Alt flash method worked for me. I had to turn on API2 to see that option.