I have rebooted several times using Advanced options for Ubuntu and
switching between 4.4.0-21-generic and 4.7.0-040700rc6-generic.

Sometimes the beep actually works for both kernal modules (yes 4.4.0-21
and 4.7) and sometimes it doesn't, but usually it doesn't. In all cases
it is very random and I can't isolate the cause.

I just restarted 3 times without touching anything during the boot
process and letting it go straight to 4.7 generic. The first time the
beep worked, even in Gedit. The 2nd and 3rd times the beep didn't work.

When I start with "upstart" option the beep always works, even with
4.4.0.28-generic as along as I get a command line. Sometimes the command
line doesn't load and the system hangs. (The GUI never loads with
"Upstart" option.)

Now, check out these results for:

$ sudo grep -ri "CONFIG_SND_HDA_INPUT_BEEP_MODE"

config-4.4.0-28-generic:CONFIG_SND_HDA_INPUT_BEEP_MODE=0
config-4.4.0-21-generic:CONFIG_SND_HDA_INPUT_BEEP_MODE=0
config-4.7.0-040700rc6-generic:CONFIG_SND_HDA_INPUT_BEEP_MODE=1

So it seems 4.7 mainline tried to fix this, but the problem must also be
located elsewhere, likely in something getting overridden immediately
after the login password is entered.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1599599

Title:
  System beep broken (again) in Xenial Xerus

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1599599/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to