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Adventurer
Adventurer
219 次查看
注册日期: ‎02-15-2019

vbltest测试DRM KMS出错

使用FB->AXI2VIDEO->DVI架构搭建DRM KMS,使用vbltest -D amba_pl@0:xilinx_drm命令时提示如下错误?请问这是什么原因?

root@zcu106_vcu_trd:/media/card# vbltest -D amba_pl@0:xilinx_drm
trying to open device 'i915'...done
starting count: 0
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)

 

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Moderator
Moderator
187 次查看
注册日期: ‎08-01-2007

回复: vbltest测试DRM KMS出错

vbltest is a test tool which is part of the libdrm suite of test tools. It is used to ensure vertical blanking interrupts are properly sent by the DRM driver. 

Is the command "vbltest -D amba_pl@0:xilinx_drm" correct?

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Adventurer
Adventurer
171 次查看
注册日期: ‎02-15-2019

回复: vbltest测试DRM KMS出错

命令没问题,使用的modetest也是一样,

modetest -D amba_pl@0:xilinx_drm  -s 30:1920x1080-60@NV12 -v

[  366.171588] xilinx-frmbuf a0040000.v_frmbuf_rd: Invalid dma template or missing dma video fmt config
[  366.180724] [drm:xilinx_drm_plane_commit] *ERROR* failed to prepare DMA descriptor
[  366.188300] xilinx-frmbuf a0040000.v_frmbuf_rd: Invalid dma template or missing dma video fmt config
[  366.197434] [drm:xilinx_drm_plane_commit] *ERROR* failed to prepare DMA descriptor
[  366.205005] jyb410_encoder_dpms
[  366.208147] JYB410 jyb410_power_on
[  366.213824] xilinx-frmbuf a0040000.v_frmbuf_rd: Invalid dma template or missing dma video fmt config
[  366.222962] [drm:xilinx_drm_plane_commit] *ERROR* failed to prepare DMA descriptor
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)
select timed out or error (ret 0)

 

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Moderator
Moderator
139 次查看
注册日期: ‎08-01-2007

回复: vbltest测试DRM KMS出错

see another topic on the same error message.

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Adventurer
Adventurer
126 次查看
注册日期: ‎02-15-2019

回复: vbltest测试DRM KMS出错

Looks like that DMA_BUF is not available.? 但是为什么会出现如此问题?
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Adventurer
Adventurer
22 次查看
注册日期: ‎02-15-2019

回复: vbltest测试DRM KMS出错

还有哪个topic会有类似错误?
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