Can you confirm which version of the kernel this used to work as
previously? Thanks.
** Tags added: regression-release
** Tags removed: regression-proposed
** Changed in: linux (Ubuntu)
Status: New = Incomplete
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Sorry for not maining this bug. It turned out after writing with some
guys at bugszilla.kernel.org that the problem is not in the kernel, but
modemmanager. The real bug is here
https://bugs.launchpad.net/bugs/648330 . Closing this bug.
** Changed in: linux (Ubuntu)
Status: Incomplete =
In the ttyUSB0-case I can make the open-call not block I can either
open it non-blocking - or open the port non-blocking in another
application (fx. cutecom) - leaving it open - while execution cat
/dev/ttyUSB0
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Serialports behave strange using blocking IO
** Attachment added: AcpiTables.txt
https://bugs.launchpad.net/bugs/620296/+attachment/1499457/+files/AcpiTables.txt
** Attachment added: AlsaDevices.txt
https://bugs.launchpad.net/bugs/620296/+attachment/1499458/+files/AlsaDevices.txt
** Attachment added: AplayDevices.txt
The latest livecd also suffers from this problem. I have even tried on
another pc with the same result.
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Serialports behave strange using blocking IO
https://bugs.launchpad.net/bugs/620296
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