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On 15/10/2013 14:44, Peter Weilbacher wrote: |
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> On 2013-09-26 14:42, Peter Weilbacher wrote: |
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>> On one of my machines, I get continuous beeping from the internal |
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>> loudspeaker when I boot a newer kernel (I'm using vanilla-sources). I |
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>> first had that with 3.10.8 and also with 3.10.10, and it continues |
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>> with 3.11.1. |
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> [...] |
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>> In the meantime I left the machine on long enough to discover that it |
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>> stops beeping whenever it is idle long enough and blanks the display. |
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> |
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> Well, this is embarrassing: Since this began I switched the machine on |
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> even less often than before, but yesterday I found out by chance that |
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> the sound did not come from the internal speaker but from the speakers |
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> built into my screen. Now I traced it to the snd-hda-intel kernel module |
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> (noise there if loaded, sound gone when removed with |modprobe -r|). |
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> |
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> Why was the sound never heard on bootup in 3.8.x kernels but is starting |
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> with 3.10.1? |
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3.8.x defaults to $VOL=$MINIMUM |
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while |
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3.10.x defaults to $VOL=$SOMETHING_NOT_MINIMAL |
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?? |
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or maybe the audio feed to snd-hda-intel was busted for years and some |
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kind soul fixed it in 3.10? |
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Diff the drivers in the kernel sources to find out more :-) |
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> |
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> Peter. |
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> |
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> P.S.: At least now I know that the easy workaround is to tune the |
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> (hardware) speaker volume down to 0... |
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> |
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-- |
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Alan McKinnon |
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alan.mckinnon@×××××.com |