Hello!
I’m trying to get Weston running on BeagleBone Black with TI’s SGX drivers.
Kernel is 4.9.13-g102f61776e from meta-ti (morty branch) and the drivers alike.
I have Weston 1.11 with patches from meta-arago (the patch that forces using
card0 whereas I have card0 for tilcdc and card1 for pvrsrvkm plus the Mesa/GBM
dealing patch). I had it running with SGX drivers already, but all of a sudden
it ceased to startup properly.
# weston --tty=1 -B drm-backend.so --current-mode
…
[16:07:05.845] Output HDMI-A-1, (connector 26, crtc 24)
mode [email protected], preferred, current
...
[16:07:05.957] set mode failed: Invalid argument
I’ve posted complete Weston startup log here: http://pastebin.com/bHbdDMas
The failure reason is listed in dmesg log:
tilcdc 4830e000.lcdc: Invalid pitch: fb and crtc widths must be the same
I see the patch comments in https://patchwork.kernel.org/patch/7856821/ that
introduced this sanity check for tilcdc, but I’m not sure how to achieve proper
setup with my case.
I have put 'gbm-format=rgb565’ in /etc/weston.ini. tilcdc’s pixel format seems
to be the same:
/sys/bus/platform/drivers/tilcdc/4830e000.lcdc/graphics/fb0/bits_per_pixel
equals to 16.
I’m not sure how tilcdc and pvrsrvkm should work between each other but the
result is weston/wayland not starting because of some framebuffer mode conflict.
I had it working very little time ago and I did it by specifying --current-mode
for Weston, but now this option doesn’t help as Weston tries to set_mode anyway.
Please, give me an advice on how to debug this.
Thanks!
—
Yury Lunev
--
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