Failed to get display density property on android 12 emulator

The problem

It seems Android 12 does not have ro.sf.lcd_density https://github.com/appium/appium-android-driver/blob/e5bba2e4a5139abfa75a7d13061d11f459fe194d/lib/commands/general.js#L271-L281

Environment

• Appium version (or git revision) that exhibits the issue: Appium 1.22.0
• Last Appium version that did not exhibit the issue (if applicable):
• Desktop OS/version used to run Appium:
• Node.js version (unless using Appium.app|exe):
• Npm or Yarn package manager:
• Mobile platform/version under test:
• Real device or emulator/simulator: Android 12 emulator.
• Appium CLI or Appium.app|exe:

Details

[HTTP] --> GET /wd/hub/session/b31dd067-1826-4863-8863-51b76be41b9a/appium/device/display_density
[HTTP] {}
[debug] [W3C (b31dd067)] Calling AppiumDriver.getDisplayDensity() with args: ["b31dd067-1826-4863-8863-51b76be41b9a"]
[debug] [ADB] Running '/Users/kazuaki/Library/Android/sdk/platform-tools/adb -P 5037 -s emulator-5554 shell getprop ro.sf.lcd_density'
[debug] [ADB] Running '/Users/kazuaki/Library/Android/sdk/platform-tools/adb -P 5037 -s emulator-5554 shell getprop qemu.sf.lcd_density'
[AndroidDriver] Failed to get display density property.
[debug] [W3C (b31dd067)] Encountered internal error running command: Error: Failed to get display density property.
[debug] [W3C (b31dd067)]     at Object.errorAndThrow (/Users/kazuaki/.nodebrew/node/v12.21.0/lib/node_modules/appium/node_modules/appium-support/lib/logging.js:94:35)
[debug] [W3C (b31dd067)]     at AndroidUiautomator2Driver.getDisplayDensity (/Users/kazuaki/.nodebrew/node/v12.21.0/lib/node_modules/appium/node_modules/appium-android-driver/lib/commands/general.js:309:7)
[HTTP] <-- GET /wd/hub/session/b31dd067-1826-4863-8863-51b76be41b9a/appium/device/display_density 500 120 ms - 631
[HTTP]

logcat:

10-05 00:09:10.583   546   603 W ProcessStats: Tracking association SourceState{148b235 system/1000 BTopFgs #19547} whose proc state 2 is better than process ProcessState{4388d98 com.google.android.gms.persistent/10101 pkg=com.google.android.gms} proc state 3 (12 skipped)
10-05 00:09:10.638   546  1722 D WifiNl80211Manager: Scan result ready event
10-05 00:09:10.639   546  1722 D WifiNative: Scan result ready event
10-05 00:09:10.694 10594 23231 I ChimeraConfigurator: Starting update, reason: 4 urgentFeatures: vision.ocr:-1
10-05 00:09:10.722  7001  7001 D LocationTracker: Got an updated location
10-05 00:09:10.783 10594 23231 I GmsDebugLogger: [73] 1801
10-05 00:09:10.799 10594 23231 I GmsDebugLogger: [30] [VisionOcr.optional:212420100800]
10-05 00:09:10.812 10594 23231 W ChimeraConfigService: Retry attempt was throttled. [CONTEXT service_id=264 ]
10-05 00:09:10.813 10594 23231 I GmsDebugLogger: [83] 1 [vision.ocr]
10-05 00:09:10.824 10594 23230 W Vision  : Request for optional module download of ocr failed. Request again.
10-05 00:09:10.824 10594 23230 I Vision  : Schedule retrying download ocr at 1398665 with backoff 640 seconds
10-05 00:09:15.174 23237 23237 W libc    : Access denied finding property "qemu.sf.lcd_density"
10-05 00:09:15.168 23237 23237 W getprop : type=1400 audit(0.0:195): avc: denied { read } for name="u:object_r:qemu_sf_lcd_density_prop:s0" dev="tmpfs" ino=221 scontext=u:r:shell:s0 tcontext=u:object_r:qemu_sf_lcd_density_prop:s0 tclass=file permissive=0
10-05 00:09:15.964   546   842 D ConnectivityService: releasing NetworkRequest [ REQUEST id=142, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN&NOT_VCN_MANAGED Uid: 10102 RequestorUid: 10102 RequestorPkg: com.google.android.googlequicksearchbox] ] (release request)
10-05 00:09:15.971   321   321 I netd    : networkSetPermissionForNetwork(101, 1) <4.75ms>
10-05 00:09:25.871   546  2077 W ProcessStats: Tracking association SourceState{148b235 system/1000 BTopFgs #19583} whose proc state 2 is better than process ProcessState{4388d98 com.google.android.gms.persistent/10101 pkg=com.google.android.gms} proc state 3 (19 skipped)

Link to Appium logs

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Code To Reproduce Issue [ Good To Have ]

Please remember that with sample code it’s easier to reproduce the bug and it’s much faster to fix it.

Please git clone https://github.com/appium/appium and from the sample-code directory, use one of your favourite languages and sample apps to reproduce the issue.

In case a similar scenario is missing in sample-code, please submit a PR with one of the sample apps provided.

[mykola-mokhnach]

Both PRs have been published

[KazuCocoa]

thank you!