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JPrig's avatar
JPrig
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7 years ago

ALTPLL hangs on Ubuntu 18.04

Hi,

I have installed Quartus 18.1 on Ubuntu 18.04. It starts but when I start MegaWizard for ALTPLL, the wizard hangs after I make one change in the main clock frequency. It consumes 99% of the CPU and no error messages are issued in the terminal window where I start Quartus. I have checked all the software and system requirements in the installation manual, and could not find deviations. Please help!

Regards, Julia

6 Replies

  • JonWay_C_Intel's avatar
    JonWay_C_Intel
    Icon for Frequent Contributor rankFrequent Contributor

    Hi @JPrig

    Sorry for the delayed response. May I know if this happens particularly for ALTPLL only or even for other IPs as well?

  • John's avatar
    John
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    I had this on U16.04.

    Happens on other IP as well.

    I got round it by dragging the megawizard window bottom right corner so that all the scroll bars disappear. Do it on the first window that pops up before selecting any options, Then it should work.

  • JPrig's avatar
    JPrig
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    Hi,

    This happens for other IPs as well, so for MegaWizard in general.

    It did not help to drag the window to the bottom right either.

    System logs show that it waits on a file descriptor 6 and never gets a reply.

    • VVavr's avatar
      VVavr
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      @JPrig,

      Actually suggestion was

      "dragging the megawizard window bottom right corner"

      but you wrote

      "did not help to drag the window to the bottom right"

      do you see the difference?

    • JPrig's avatar
      JPrig
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      Thanks a lot!!

      Starting Quartus through ssh helped.