Comment 7 for bug 105380

Revision history for this message
ssparko (eric-go4acs) wrote : Re: [Bug 105380] Re: Serial port stops working after suspend

That may take me some time.... I'll let you know what I find.

Thank you,
Eric Sparks
Absolute Communication Solutions
530-271-0332 x 202 Voice
530-271-0335 Fax

----- Original Message -----
From: "Leann Ogasawara" <email address hidden>
To: <email address hidden>
Sent: Friday, April 4, 2008 6:14:55 PM GMT -08:00 US/Canada Pacific
Subject: [Bug 105380] Re: Serial port stops working after suspend

Hi Ssparko,

The Hardy Heron Beta release is currently available. It would be
helpful if you could test and report back your results:
http://www.ubuntu.com/testing . Thanks.

** Changed in: linux (Ubuntu)
Sourcepackagename: linux-source-2.6.20 => linux

--
Serial port stops working after suspend
https://bugs.launchpad.net/bugs/105380
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Status in Source Package "linux" in Ubuntu: Incomplete

Bug description:
Binary package hint: linux-image-2.6.20-1-generic

When my laptop wakes up after suspend, the serial port doesn't seem to work anymore. Programs can read from and write to it as before, but the data doesn't seem to be actually transmitted.

I don't know of any way to check the status of the serial port. After searching Google, I saw other people mention that the serial port uses IRQ 4, and its entry disappears from /proc/interrupts. But in my case, it doesn't appear there in the first place.

Also, the serial port driver is built into the kernel, and not compiled as a module. So I can't even try removing it and loading it again.

I'm using a Thinkpad T20, with ACPI enabled.