2050179 - Perma TEST-UNEXPECTED-TIMEOUT | /webrtc/RTCPeerConnection-videoDetectorTest.html | Signal detector detects track change within reasonable time - Test timed out when Gecko 154 merges to Beta on 2026-07-20

Status: VERIFIED FIXED

(Core :: WebRTC, defect)

Description

[Atila Butkovits]

Central-as-beta-simulation

How to run these simulations

Failure log

[task 2026-06-24T12:40:36.537+00:00] 12:40:36     INFO - TEST-FAIL | /webrtc/RTCPeerConnection-transport-stats.https.html | DTLS statistics on transport-stats after setLocalDescription - assert_equals: expected (string) "unknown" but got (undefined) undefined
[task 2026-06-24T12:40:36.537+00:00] 12:40:36     INFO - @https://web-platform.test:8443/webrtc/RTCPeerConnection-transport-stats.https.html:24:16
[task 2026-06-24T12:40:36.537+00:00] 12:40:36     INFO - TEST-FAIL | /webrtc/RTCPeerConnection-transport-stats.https.html | ICE statistics on transport-stats after setLocalDescription - assert_equals: expected "new" but got "checking"
[task 2026-06-24T12:40:36.537+00:00] 12:40:36     INFO - @https://web-platform.test:8443/webrtc/RTCPeerConnection-transport-stats.https.html:43:16
[task 2026-06-24T12:40:36.537+00:00] 12:40:36     INFO - TEST-UNEXPECTED-TIMEOUT | /webrtc/RTCPeerConnection-videoDetectorTest.html | Signal detector detects track change within reasonable time - Test timed out
[task 2026-06-24T12:40:36.654+00:00] 12:40:36     INFO - TEST-UNEXPECTED-TIMEOUT | /webrtc/RTCPeerConnection-videoDetectorTest.html | expected OK
[task 2026-06-24T12:40:36.654+00:00] 12:40:36     INFO - TEST-INFO took 241028ms
[task 2026-06-24T12:40:37.146+00:00] 12:40:37     INFO - STDOUT: cleanup aborted: args: /builds/worker/fetches/android-sdk-linux/platform-tools/adb wait-for-device remount, exitcode: 1, stdout: Device must be bootloader unlocked
[task 2026-06-24T12:40:37.146+00:00] 12:40:37     INFO - Closing logging queue
[task 2026-06-24T12:40:37.146+00:00] 12:40:37     INFO - queue closed
[task 2026-06-24T12:40:37.163+00:00] 12:40:37     INFO - Setting up ssl
[task 2026-06-24T12:40:37.184+00:00] 12:40:37     INFO - certutil | b''
[task 2026-06-24T12:40:37.198+00:00] 12:40:37     INFO - certutil | b''
[task 2026-06-24T12:40:37.209+00:00] 12:40:37     INFO - certutil | b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
[task 2026-06-24T12:40:37.907+00:00] 12:40:37     INFO - adb Granting important runtime permissions to org.mozilla.geckoview.test_runner
[task 2026-06-24T12:40:38.013+00:00] 12:40:38     INFO - adb launch_application: am start -W -n org.mozilla.geckoview.test_runner/org.mozilla.geckoview.test_runner.TestRunnerActivity -a android.intent.action.MAIN --es env0 MOZ_CRASHREPORTER=1 --es env1 MOZ_CRASHREPORTER_NO_REPORT=1 --es env2 MOZ_CRASHREPORTER_SHUTDOWN=1 --es env3 MOZ_HIDE_RESULTS_TABLE=1 --es env4 MOZ_IN_AUTOMATION=1 --es env5 MOZ_LOG=signaling:3,mtransport:4,DataChannel:3,jsep:4 --es env6 R_LOG_LEVEL=6 --es env7 R_LOG_DESTINATION=stderr --es env8 R_LOG_VERBOSE=1 --es env9 MOZ_PROCESS_LOG=/tmp/tmp4_3z2ounpidlog --es env10 MINIDUMP_SAVE_PATH=/builds/worker/workspace/build/blobber_upload_dir --es env11 MOZ_DISABLE_NONLOCAL_CONNECTIONS=1 --es arg0 -no-remote --es arg1 -profile --es arg2 /data/local/tmp/test_root/profile --es arg3 --marionette --es arg4 --remote-allow-system-access --es arg5 about:blank
[task 2026-06-24T12:40:40.377+00:00] 12:40:40     INFO - Starting runner
[task 2026-06-24T12:40:42.623+00:00] 12:40:42     INFO - TEST-START | /webrtc/RTCPeerConnectionIceErrorEvent.html ```

Comment 1

[BugBot [:suhaib / :marco]]

:mkozinski, since you are the author of the regressor, bug 2031984, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 2

[Marcin Koziński]

I find it extremely unlikely that changes to mobile/android/android-components/components/tooling/lint/ could possibly have an impact on this. Is the regressor set correctly?

Comment 3

[Cosmin Sabou [:CosminS]]

Looks like these kind of tests started only running on the 24th on those platforms, 23rd and 22nd those weren't there running so most likely is an old issue that surfaced there.

Comment 4

[Michael Froman [:mjf]]

Given that these wpts weren't running on Android previously, should we update the ini file to expect a timeout?

Comment 5

[Intermittent Failures Robot]

3 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 3

Table

	nofis
android-x86_64/opt	3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2050179&startday=2026-06-22&endday=2026-06-28&tree=all

Comment 6

[Dan Baker[:dbaker]]

Attachment: Bug 2050179 - Fix perma-TIMEOUT of RTCPeerConnection-videoDetectorTest on Android r?#webrtc-reviewers

Add per-test prefs on Android to disable hardware video decoders
(mediadatadecoder_h264_enabled, mediadatadecoder_vpx_enabled). Hardware
decoders produce SurfaceTextureImage frames; once the compositor GL context
attaches to the SurfaceTexture, GetAsSourceSurface() from another context
fails silently, causing canvas drawImage() to produce black pixels and the
signal detector to never fire. Software decoders (libvpx/GMP) produce
PlanarYCbCrImage frames that GetAsSourceSurface() can always read.

Also remove the [TIMEOUT, OK] expected results since the test now passes
with software decoders.

Comment 7

[Silaghi Andreea]

Hello, verified in today's beta simulation and the failure is still here. https://treeherder.mozilla.org/jobs?repo=try&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel&revision=462f33feb94fd7e58424e16ea7e15be888b6d2df&searchStr=Android%2C14.0%2Cx86-64%2CLite%2CShippable%2Copt%2CWeb%2Cplatform%2Ctests%2Cwithout%2Cfission%2Cenabled%2Ctest-android-em-14-x86_64-shippable-lite%2Fopt-geckoview-web-platform-tests-nofis%2Cwpt32&selectedTaskRun=KcDIBiMISfO7Ye8bWe_jCw.0

Comment 8

[Intermittent Failures Robot]

6 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 6

Table

	nofis
android-x86_64/opt	6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2050179&startday=2026-06-29&endday=2026-07-05&tree=all

Comment 9

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/18f6f8603f88
https://hg.mozilla.org/integration/autoland/rev/2b9ada4e3b45
Fix perma-TIMEOUT of RTCPeerConnection-videoDetectorTest on Android r=webrtc-reviewers,bwc

Comment 10

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/2b9ada4e3b45

Comment 11

[Cristian Tuns]

The patch is not working in today's beta simulation: https://treeherder.mozilla.org/jobs?repo=try&group_state=expanded&resultStatus=testfailed%2Cbusted%2Cexception%2Cusercancel&author=ctuns%40mozilla.com&fromchange=950490841361214eda70b54b0dcb7c289b93319e&tochange=9eefada3dbd5e2aac30dfbccd45b418b7c4202a7&searchStr=wpt&selectedTaskRun=ZwG2_J1YRNqDKdez94bRYA.1
Can you please have another look?

Comment 12

[BugBot [:suhaib / :marco]]

Set release status flags based on info from the regressing bug 2031984

Comment 13

[Dan Baker[:dbaker]]

I'm confused the bug and fix were for the testing/web-platform/meta/webrtc/RTCPeerConnection-videoDetectorTest.html.ini. It seems you are linking a separate failing test /webrtc/RTCRtpSender-replaceTrack.https.html. Is it still seeing issues with videoDectetorTest? Or are we needing to discuss a different test case and possibly new bug?

Comment 14

[Silaghi Andreea]

Hello @dan

It seems to fail with this - line failure: TEST-UNEXPECTED-NOTRUN | /webrtc/RTCRtpSender-replaceTrack.https.html | ReplaceTrack null -> new track transmits the new track - expected PASS
and Im seeing this one as well:
TEST-UNEXPECTED-TIMEOUT | /webrtc/RTCDtlsTransport-onerror.html | fingerprint error is surfaced using RTCDtlsTransport.onerror - Test timed out

Comment 15

[Intermittent Failures Robot]

2 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 2

Table

	nofis
android-x86_64/opt	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2050179&startday=2026-07-06&endday=2026-07-12&tree=all

Comment 16

[Silaghi Andreea]

Hi

Opened Bug 2055219 for the new line failure.

Comment 17

[Silaghi Andreea]

verified in today's beta simulation and the job is green.

Comment 18

[BugBot [:suhaib / :marco]]

Set release status flags based on info from the regressing bug 2048066