Created attachment 8700504 [details] AriesKK2.5_logcat.txt [1.Description]: [Aries KK v2.5&master]Launch Gallery and select a photo to set it as wallpaper, on the wallpaper setting view, press HW Camera key to take a photo and set it as wallpaper, but the setting view displays as black and the Cancel/Set buttons don't work. Found time: 01:12 See attachment: AriesKK2.5_logcat.txt & video1.3gp [2.Testing Steps]: 1. Launch Gallery app. 2. Select a photo and tap Share icon -> Wallpaper. 3. Long press HW Camera key on the wallpaper setting view. 4. Take a photo and enter preview. 5. Tap Share icon -> Wallpaper. [3.Expected Result]: 5. The wallpaper setting view should display normally and the Cancel/Set buttons could work normally too. [4.Actual Result]: 5. The wallpaper setting view display as black and the Cancel/Set buttons don't work. [5.Reproduction build]: Device: Aries kk v2.5 (Affected) Build ID 20151218184045 Gaia Revision eeed1451e0e48b63abe3199e4d6906adc2a762d2 Gaia Date 2015-12-17 14:53:36 Gecko Revision http://hg.mozilla.org/releases/mozilla-b2g44_v2_5/rev/766600655dfb1b67c380b9da4f4b19acb505a858 Gecko Version 44.0 Device Name aries Firmware(Release) 4.4.2 Firmware(Incremental) eng.worker.20151218.174305 Firmware Date Fri Dec 18 17:43:13 UTC 2015 Bootloader s1 Device: Aries kk master (Affected): Build ID 20151219131630 Gaia Revision d069027f9af6f835ef869f1f01b52339e5a3f423 Gaia Date 2015-12-18 08:50:41 Gecko Revision https://hg.mozilla.org/mozilla-central/rev/388bdc46ba51ee31da8b8abe977e0ca38d117434 Gecko Version 46.0a1 Device Name aries Firmware(Release) 4.4.2 Firmware(Incremental) eng.worker.20151219.123525 Firmware Date Sat Dec 19 12:35:33 UTC 2015 Bootloader s1 [6.Reproduction Frequency]: Always Recurrence,5/5 [7.TCID]: Free Test [8.Note]: This problem cannot be reproduced on Flame KK v2.5 and Flame KK master due to there's no HW Camera key.