Part Number: BEAGLEBK
Tool/software: Linux
I am using a BeagleBone Black running with the following settings:
cat /etc/powervr.ini
[default]
WindowSystem=libpvrPVR2D_FRONTWSEGL.so
uname -a
Linux NDCT-HMI 4.4.27-bone14 #7 Wed May 10 10:03:59 CEST 2017 armv7l GNU/Linux
lsmod | grep omaplfb
omaplfb 12142 0
pvrsrvkm 155855 1 omaplfb
tilcdc 26543 1 omaplfb
cat /proc/pvr/version
Version SGX_DDK_Linux_CustomerTI sgxddk 1.10@2359475 (release) /build/buildd/ti-sgx/src/GFX_Linux_KM
System Version String: SGX revision = 125
fbset -i
mode "1280x800"
geometry 1280 800 1280 2400 24
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode
Frame buffer device information:
Name :
Address : 0x9ea00000
Size : 9216000
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 3840
Accelerator : No
I am trying get OpenGL ES to work on the BeagleBone Black using SGX, fbdev, 24 bpp LCD display, no windowing system. I have been unable to see any output on the display.
I have several questions:
1) I believe this version of the SGX drivers only uses the fbdev driver. Is this correct?
2) Can this driver work on a 24 bpp LCD display?
3) If not - is there a way to force a different bpp?
4) Should I be able to run the sgx_flip_test application successfully from an ssh shell? (I get "Display Class API: ERROR unsupported pixel format!")
5) I read somewhere that the latest SGX drivers don't support fbdev and do support 24 bpp. In what version did this change?
6) Do I have to upgrade my kernel and SGX drivers to use the newer DRM/KMS?
7) Should this work w/o running any windowing system?
Thanks for any help.
