On 11/10/2015 01:36 PM, Emmett Culley wrote:
On 11/10/2015 07:32 AM, Frank McCormick wrote:
I am running Fedora 21 and after the latest updates I have no sound
on my machine.
aplay -l shows no sound cards. Mixers such as alsamixer show only Pulseaudio
master and the output is full.
Can someone suggest how to debug this ?
Thanks
This happened to me as well. Then I noticed that I was booting to a old Fedora 22 kernel (4.0.1-100. Upon investigation I found some strange entries in grub.conf. Strange in that there were references to the Fedroa 22 kernel.
Removing those reference didn't help. Neither did selecting an older (F21) kernel from the list help, as the system would not boot at all. I was left with a dracut prompt.
I lost sound, and all USB support. Plus my network failed to start as it appeared that bridge support was missing.
Finally I installed grub again on /dev/sda and now I am booting to 4.1.10-100-f21 as expected and everything works again.
Emmett
That's almost identical to what happened to me...except I only lost
sound and it only happened after
I installed grub from my Debian Sid partition. Once I re-installed it
from Fedora, the sound problem disappeared.
But then I had no entry in the menu for Windows. So I re-ran
grub2-mkconfig and Windows re-appeared!!
I'd file a bug except I don't know whether it's a Debian problem or a
Fedora problem. There must be some
incompatibility between grub in both systems. I guess I'll just leave
grub installed from Fedora.
I wish there were a better way to handle two partitions of different
Linux's.
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