Public bug reported: Summary: The accelerometer data is in detail not correct. This is either a specific hardware bug of my phone, the Aquaris 4.5 or all Aquaris phones or this is a software bug in reading the accelerometer data of the sensor.
This might also be a root cause of bug: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1474225 My phone: current build number: 28 device name: krillin channel: ubuntu-touch/stable/bq-aquaris.en last update: 2015-12-16 12:25:08 version version: 28 version ubuntu: 20151210 version tag: OTA-8.5 version device: 20150821-736d127 version custom: 20151111--36-46-vivid Task 1: I have attached a screenshot of the app "Level". I have placed the phone on a surface which is leveled quite well. Expectation 1: The app level shows that the surface is leveled and the red dot is in the middle. Result 1: The red dot shows an offset of about 0.5 - 1 degree to "bottom left". This might be caused by a not fully leveled surface. Task 2: I have turned the phone by 90° Expectation 2: The red dot moves by 90° in the direction I turn the phone. Result 2: The red dot stays in exactly the same position (in relation to the orientation of the phone): bottom left. This means that a second screen shot would show exactly the same picture eventhough I have turned the phone by 90°. Task 3: I used "Sensor Status" - Accelerometer and I made 5 screen shots where I placed the phone on the same leveled surface and rotated the phone to 0°, 90°, 180°, 270°, 360°. Expectation3: The calculation of the angles of the 5 screen shots should give 4 different angles differing each by approx. 90°. Result3: Results of the „Sensor Status“ Accelerometer of the BQ Aquaris 4.5 lying on a flat surface angle of the phone x y calculated angle 0 -0,421 -0,277 -146,66 90 -0,43 -0,335 -142,08 180 -0,43 -0,316 -143,69 270 -0,44 -0,306 -145,18 0 -0,44 -0,296 -146,07 I have also attached the 5 screen shots and the Calc file with the background how I came to these results. This clearly shows that the accelerometer has an offset. This is either a specific hardware bug of my phone, the Aquaris 4.5 or all Aquaris phones or this is a software bug in reading the accelerometer data of the sensor. Uranicus ** Affects: unity8 (Ubuntu) Importance: Undecided Status: New ** Attachment added: "Bug Accelerometer.7z" https://bugs.launchpad.net/bugs/1529592/+attachment/4541265/+files/Bug%20Accelerometer.7z -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1529592 Title: Accelerometer has an offset Status in unity8 package in Ubuntu: New Bug description: Summary: The accelerometer data is in detail not correct. This is either a specific hardware bug of my phone, the Aquaris 4.5 or all Aquaris phones or this is a software bug in reading the accelerometer data of the sensor. This might also be a root cause of bug: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1474225 My phone: current build number: 28 device name: krillin channel: ubuntu-touch/stable/bq-aquaris.en last update: 2015-12-16 12:25:08 version version: 28 version ubuntu: 20151210 version tag: OTA-8.5 version device: 20150821-736d127 version custom: 20151111--36-46-vivid Task 1: I have attached a screenshot of the app "Level". I have placed the phone on a surface which is leveled quite well. Expectation 1: The app level shows that the surface is leveled and the red dot is in the middle. Result 1: The red dot shows an offset of about 0.5 - 1 degree to "bottom left". This might be caused by a not fully leveled surface. Task 2: I have turned the phone by 90° Expectation 2: The red dot moves by 90° in the direction I turn the phone. Result 2: The red dot stays in exactly the same position (in relation to the orientation of the phone): bottom left. This means that a second screen shot would show exactly the same picture eventhough I have turned the phone by 90°. Task 3: I used "Sensor Status" - Accelerometer and I made 5 screen shots where I placed the phone on the same leveled surface and rotated the phone to 0°, 90°, 180°, 270°, 360°. Expectation3: The calculation of the angles of the 5 screen shots should give 4 different angles differing each by approx. 90°. Result3: Results of the „Sensor Status“ Accelerometer of the BQ Aquaris 4.5 lying on a flat surface angle of the phone x y calculated angle 0 -0,421 -0,277 -146,66 90 -0,43 -0,335 -142,08 180 -0,43 -0,316 -143,69 270 -0,44 -0,306 -145,18 0 -0,44 -0,296 -146,07 I have also attached the 5 screen shots and the Calc file with the background how I came to these results. This clearly shows that the accelerometer has an offset. This is either a specific hardware bug of my phone, the Aquaris 4.5 or all Aquaris phones or this is a software bug in reading the accelerometer data of the sensor. Uranicus To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1529592/+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
