Kraxel's Kernel and VC4

[Aly Dharshi <aly@xxxxxxxxxx>]

Hello Everyone,

I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's kit. I also installed X and tried to set the default state of the machine to graphical.target using systemd. I also have xrdp installed. I can easily and successfully RDP across to the machine and use LXDE.

When I try to use it at the machine itself, there is not X environment firing up. I have the following errors in dmesg:

[   24.367279] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   24.374196] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   24.384452] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:

[   24.391416] [drm] num bos allocated: 4

[   24.395243] [drm] size bos allocated: 18320kb

[   24.399678] [drm] num bos used: 3

[   24.403056] [drm] size bos used: 9320kb

[   24.406966] [drm] num bos cached: 1

[   24.410509] [drm] size bos cached: 9000kb

[   29.921963] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   29.928816] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   29.943051] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:

[   29.950043] [drm] num bos allocated: 4

[   29.953873] [drm] size bos allocated: 18320kb

[   29.964561] [drm] num bos used: 3

[   29.967904] [drm] size bos used: 9320kb

[   29.971816] [drm] num bos cached: 1

[   29.975355] [drm] size bos cached: 9000kb

[   35.616982] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   35.623766] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   35.630569] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:

[   35.637485] [drm] num bos allocated: 4

[   35.641260] [drm] size bos allocated: 18320kb

[   35.645636] [drm] num bos used: 3

[   35.648967] [drm] size bos used: 9320kb

[   35.652810] [drm] num bos cached: 1

[   35.656310] [drm] size bos cached: 9000kb

[   41.741442] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   41.750538] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   41.764316] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:

[   41.777405] [drm] num bos allocated: 4

[   41.787267] [drm] size bos allocated: 18320kb

[   41.796928] [drm] num bos used: 3

[   41.806312] [drm] size bos used: 9320kb

[   41.815661] [drm] num bos cached: 1

[   41.822454] [drm] size bos cached: 9000kb

[   47.842983] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   47.849963] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   47.856894] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:

[   47.864245] [drm] num bos allocated: 4

[   47.868063] [drm] size bos allocated: 18320kb

[   47.872487] [drm] num bos used: 3

[   47.875855] [drm] size bos used: 9320kb

[   47.879709] [drm] num bos cached: 1

[   47.883285] [drm] size bos cached: 9000kb

[   53.606989] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   53.613819] vc4-drm soc:gpu: failed to allocate buffer with size 9216000

[   53.620666] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:

[   53.627631] [drm] num bos allocated: 4

[   53.631427] [drm] size bos allocated: 18320kb

[   53.635826] [drm] num bos used: 3

[   53.639176] [drm] size bos used: 9320kb

[   53.643048] [drm] num bos cached: 1

[   53.646566] [drm] size bos cached: 9000kb

My config.txt looks as follows:

arm_freq=1200

core_freq=400

sdram_freq=500

over_voltage=6

gpu_mem=256

max_usb_current=1

arm_control=0x200

# NOOBS Auto-generated Settings

hdmi_force_hotplug=1

config_hdmi_boost=4

overscan_left=24

overscan_right=24

overscan_top=16

overscan_bottom=16

disable_overscan=0

# workaround firmware issue for rpi3

# u-boot doesn't work without this

enable_uart=1

Would anybody have any thoughts on solving this issue. I know it may not be completely a Fedora problem especially since its not a Fedora team built kernel. But would still appreciate the help. Thanks/

Cheers,

ASD.

Aly S Dharshi

B.Sc. Computer Science, RHCE

Technology Strategist

m. 780 722 3461

t. 780 428 5226

e. aly@xxxxxxxxxx

w. alydharshi.com

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