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hi, all
i encountered a problem about ipu.
i'm porting linux on imx6 customized board.
after power-on , it can display the linux log on lvds panel. it also can play video with gstreamer.
but after several minutes, it displays nothing and just becomes Black-screen.
it will show the following message on the console
-------------------------------------------------------------------------------
imx-ipuv3 imx-ipuv3.0: DC stop timeout - 0 * 10ms
mxc_ldb mxc_ldb: LDB blank, control reg:0x200
--------------------------------------------------------------------------------
what's problem with it.?
Solved! Go to Solution.
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It is linux timeout to blank screen, you can add "consoleblank=0" in your boot command to avoid such timeout.
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It is linux timeout to blank screen, you can add "consoleblank=0" in your boot command to avoid such timeout.
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Hi fang
"control reg:0x200" means that LDB was reset
and stopped (disabled). Many reasons may cause it:
DDR errors, power supply issues, just errors in software.
I would suggest to start with hardware and check LDB
with SDK (one can run it with jtag)
i.MX 6Series Platform SDK : Bare-metal SDK
Best regards
chip
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hi, chipexpert
Does "power supply issues" means that pmic will also cause the error?
and to i.MX 6Series Platform SDK : Bare-metal SDK ,
how to test it with it ?
i found the ips_test.c in iMX6_Platform_SDK\sdk\drivers\ipu\test.
is this test file?
B&R
peter
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Hi fang
yes pmic also can reset LDB.
For SDK, first please read documentation
included in that package,
Then please create (if necessary) new community thread.
Best regards
chip