I 've tested with a trivial TPP (one that doesn't use Qt, that only connects to and disconnects from U8) and wasn't able to repro the issue. Thanks to Thomas for his help. As I said before, the camera driver is a bit flakey - I get errors like
[ 933.537054] [mt-i2c]ERROR,454: id=0,addr: 50, transfer error [ 933.537093] [mt-i2c]ERROR,460: I2C_ACKERR or of the following sort, [ 1006.938770] inv_mpu: error to reset fifo [ 1007.055090] inv_mpu: error in header parsing=3c00 but the camera preview still seems to work, though the startup delay varies slightly due to these. This seems to indicate Qt Quick Scenegraph Renderer is doing something bogus. I guess we could also try a TPP which sets up EGL only to glClear the surface to be 100% sure. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. https://bugs.launchpad.net/bugs/1551811 Title: Opening the camera for the first time leads to reboot Status in camera-app: New Status in Canonical System Image: Confirmed Status in Mir: New Status in Telegram app: Invalid Status in trust-store: New Status in mir package in Ubuntu: New Bug description: Test case. - Flash the phone. - Open Telegram app. - Fill the account details. - Add a contact (if needed). - Select a contact to send a message. - Tap on the clip to attach a photo. - Select the camera. Expected result. - After accepting the permission dialog, camera app allows to take a picture. Actual result. - After accepting the permission dialog, phone reboots. I'm not sure whether this is a problem with Telegram or with the camera. However, I couldn't reproduce the problem using the messaging- app. And once the permission dialog is accepted, the reboot is gone. com.ubuntu.telegram_2.0.8.0_armhf.click current build number: 259 device name: arale channel: ubuntu-touch/rc-proposed/meizu.en -------------------------- Same happens with the following steps: 1. Flash device (arale) with $ ubuntu-device-flash touch --device arale --channel ubuntu/rc- proposed/meizu.en --recovery-image <path-to-recovery-with-adb-support> --bootstrap 2. Wait until flash process is done 3. Go through first-start wizard 4. Pass tutorial 5. Directly launch camera-app, approve trust-prompt Repeat 1-5 multiple times and you will see a frozen device after step 5. You can verify it happened due to a kernel panic mentioned in comment #7. You can reset the trust db entry for the camera app using : $rm -rf ~/.local/share/CameraService $restart cameraservice-trust-stored Run the following to get the command line for all threads so you can match the pid from the kmsg later (see below): ps H -eo 'pid tid cmd:250 comm' To verify it was really the kernel panic run $ sudo cat /proc/last_kmsg once the device has rebooted. To manage notifications about this bug go to: https://bugs.launchpad.net/camera-app/+bug/1551811/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
