New: Beaglebone black: Buggy SGX driver version, swapped red and blue channels

https://bugs.busybox.net/show_bug.cgi?id=10406

Bug ID: 10406
Summary: Beaglebone black: Buggy SGX driver version, swapped
red and blue channels
Product: buildroot
Version: 2017.08
Hardware: Other
OS: Linux
Status: NEW
Severity: critical
Priority: P5
Component: Other
Assignee: unassigned at buildroot.uclibc.org
Reporter: nikola.rajovic at zuehlke.com
CC: buildroot at uclibc.org
Target Milestone: ---

Hi,

I have built a buildroot image for BeagleBone Black using beaglebone_qt5_defconfig config. The problem is with eglfs backend and SGX GPU driver in turn swapping red and blue channels when rendering on 16-bit 7'' LCD cape. Not tested with HDMI. It seems that SGX driver uses BGR instead of RGB color mode (or vice versa).

fb-test application displays correct colors, everything matches.

Any clue if it is possible to get an updated version of SGX driver which resolves this issue.

Thanks,
Nikola

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https://bugs.busybox.net/show_bug.cgi?id=10406

--- Comment #1 from Peter Korsgaard <[email protected]> ---
The am335x has a known hw bug regarding red/blue swap when configuring the RGB output for 16 bit mode, so it is probably related to that.

Why things are working for SW rendering and not for GPU rendering I don't know, but you will probably have more luck asking on the beaglebone list:

https://groups.google.com/forum/#!categories/beaglebone/beagleboardorg-beaglebone-black

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https://bugs.busybox.net/show_bug.cgi?id=10406

Thomas Petazzoni <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #2 from Thomas Petazzoni <[email protected]> --- Issue is specific to the HW platform and is not related to Buildroot per-se, therefore I'm closing.

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