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Linux/AM5728: HDMI hot plug issue

boycchi
Expert 1005 points

Part Number: AM5728

Tool/software: Linux

Hi all,

I have found a problem about HDMI hot plug that the console shows some information after I hot plug for several times.The max hot plug times vary from one evm board to another.Is that a software bug or something else and could this issue be solved?

Thanks in advance.

  • 0
    TI__Guru**** 393215 points
    What Linux version is that? Is this the GP EVM board? Please post the log file as attachment, do not paste screenshots.
  • 0 in reply to Biser Gatchev-XID
    Expert 1005 points

    The processor sdk is ti-processor-sdk-linux-am57xx-evm-04.00.00.04.It's GP EVM board.Plus,after i reboot the evm in software and HDMI is ok.

    Fullscreen hdmi_issue.txt Download 
    root@am57xx-evm:~# [  301.118101] omapdss error: HDMI I2C Master Error
[  305.382272] omapdss error: HDMI I2C timeout reading EDID
[  305.622989] omapdss error: HDMI I2C Master Error
[  310.939403] omapdss error: HDMI I2C Master Error
[  323.399056] omapdss error: HDMI I2C Master Error
[  325.401969] omapdss error: HDMI I2C Master Error
[  325.412211] omapdss error: HDMI I2C Master Error
[  336.997048] omapdss error: HDMI I2C Master Error
[  338.021830] omapdss error: HDMI I2C timeout reading EDID
[  340.394604] omapdss error: HDMI I2C timeout reading EDID
[  340.574466] omapdss error: HDMI I2C Master Error
[  344.346405] omapdss error: HDMI I2C Master Error
[  347.755249] omapdss error: HDMI I2C Master Error
[  352.579795] omapdss error: HDMI I2C Master Error
[  353.615215] omapdss error: HDMI I2C timeout reading EDID
[  354.632171] omapdss error: HDMI I2C timeout reading EDID
[  356.045179] omapdss error: HDMI I2C Master Error
[  358.259556] omapdss error: HDMI I2C Master Error
[  363.987104] omapdss error: HDMI I2C Master Error
[  370.071557] omapdss error: HDMI I2C Master Error
[  384.293942] omapdss error: HDMI I2C Master Error
[  384.309196] omapdrm omapdrm.0: could not remap: -12 (3)
[  384.314527] PVR_K:(Error): DmaBufImportAndAcquirePhysAddr: dma_buf_map_attachment failed: -309419456
[  384.325576] PVR_K:(Error): PVRSRVMapDmaBufKM: Failed to get dma-buf phys addr
[  384.333508] PVR_K:(Error): PVRSRVMapDmaBufBW: Failed to map dma-buf handle

  • 0 in reply to boycchi
    TI__Mastermind 22946 points
    Hi Boycchi, we are able to replicate the failure. We will get back with our analysis soon.
  • 0 in reply to Manisha Agrawal
    TI__Mastermind 22946 points
    Hi Boycchi,

    We find that there's memory leak with weston application and hence causing the PVRSRV error with hotplug event. The memory leak issue is being investigated now.

    I do not see i2c error with PLSDK 4.1 release. Can you try PLSDK 4.1 release and see if i2c error goes away?
  • 0 in reply to Manisha Agrawal
    Expert 1005 points
    Hi manisha,
    Thanks for your reply,i'll try the PLSCK 4.1 later.
    Plus,when the i2c error shows,it didn't affect anything about HDMI,in other word,the HDMI works well after the hot plug although the i2c error shows.