Hi,All:
How to use the two LVDS (LVDS0, LVDS1) signal shown in two panel for linux.
How to set the environment variable or how to do.
please help me,thanks.
(中譯:如何在liunx使用兩個LVDS (LVDS0、LVDS1)的信號顯示在兩個panel上
如何去設定環境變數或是如何做
)
Solved! Go to Solution.
HI 陳 冠儒
please look at attached Release Notes
Table 6. Kernel Boot Parameters (continued)
parameter ldb=sep0/1
Best regards
igor
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For 3.0.35_410 BSP please refer to igor's answer.
For 3.10 and later BSP release, please modify the device tree according the binding guide.
Documentation/devicetree/bindings/video/fsl,ldb.txt
13
14 Required properties:
15 - compatible: Should be "fsl,<soc>-ldb".
16 - #address-cells: Must be <1>.
17 - #size-cells: Must be <0>.
18 - gpr: gpr is the phandle to general purpose register node.
19 - clocks: The clocks provided by the SoC to LDB, including ldb_di0/1,
20 dix_sel, ldb_di0/1_div_3_5, ldb_di0/1_div_7 and ldb_di0/1_div_sel
21 clocks.
22 - clock-names: Must contain entries for each entry in clocks.
23
24 Optional properties:
25 - ext-ref: Provide this bool property if your LDB uses an external
26 reference resistor for bandgap.
27 - split-mode: Provide this bool property if your board uses LDB split
28 mode to drive a high resolution display, say 1080P@60. In this
29 mode, two LVDS channels will drive one display.
30 - dual-mode: Provide this bool property if your board uses LDB dual
31 mode to drive two displays. In this mode, one display engine will
32 drive two displays which have the same timings and display content.
33
hi,Biyong Sun:
thanks for your help.
But there are examples of it can be used for reference?
please help me,thanks.
setenv displayinfo 'video=mxcfb0:dev=ldb,bpp=24,if=RGB666 video=mxcfb1:dev=ldb,bpp=24,if=RGB666 video=mxcfb2:dev=none video=mxcfb3:dev=none'
setenv mmcargs 'setenv bootargs console=${console},${baudrate} ${smp} root=${mmcroot} ${displayinfo}'
Gstreamer playback to secondary display:
gst-launch-1.0 playbin uri=file:///media/AVC-1080P-9M_ToS.mkv video-sink="imxv4l2sink device=/dev/video18 disp-width=1920 disp-height=1080"
hi,Biyong Sun:
thanks for your help.
I try it,thanks.
HI 陳 冠儒
please look at attached Release Notes
Table 6. Kernel Boot Parameters (continued)
parameter ldb=sep0/1
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
hi,igorpadykov:
thanks for your help.
Android can already be exported to LVDS0.
But On linux it does not seem to be exported to LVDS0 and I can not let LVDS0 shows data.
I do not know how to handle.
please help me,thanks.
(中譯: 感謝您的幫忙.
android已經可以導出到LVDS0了.
但在linux上似乎不能導出到LVDS0並且我不能讓LVDS0秀出資料.
我不知道如何處理.
請幫忙我,謝謝.
)