1072148 - Trying to output to a display at 1080p resolution causes b2g to crash

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: General, defect)

Description

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

I didn't spend much time diagnosing this because there are worse bugs at lower resolutions.  I landed a temporary workaround that restricts resolution to 480p.  This very strongly suggets memory corruption.

It's not worth looking more at this until bug 1072145 is understood.

Comment 1

[Sotaro Ikeda [:sotaro]]

omx video codec size limitation is expected to use the following system properties.
- ro.moz.omx.hw.max_width
- ro.moz.omx.hw.max_height

The following is hamachi's example.
https://github.com/mozilla-b2g/android-device-hamachi/blob/master/full_hamachi.mk#L19

Comment 2

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Hi Sotaro.

Sorry, what I meant was that if the b2g *screen* itself is 1920x1080, then b2g on the Raspberry Pi crashes.  Not just for videos, but for any content like the homescreen.  This is a bug in the GL stack.

Hardware video decoding and camera on the RPi is another, interesting problem :).

Comment 3

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

I'm just going to close this out for now.  The crash may have been related to the buggy gfx stack, but as things stand now with SW compositing, it's just not feasible to use 1080p.  So we'll revisit this in the future.