> The laptop's speakers produce no sound. Audio from headphones still works > fine. A quick test is to visit GNOME System Settings -> Sound -> Output, > select Test, click Front Left or Front Right and notice there is no sound. I > tested a mainline kernel revision from yesterday > (5.11-rc5+) and the regression is not yet fixed. I bisected the regression to > "ALSA: HDA: Early Forbid of runtime PM": > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i > d=a0645daf16101bb9a6d87598c17e9a8b7bd60ea7 Does reverting just this patch fix the issue you are seeing? > > I created a downstream bug report here, including some bits from dmesg > that may or may not be relevant in comment #2: > > https://bugzilla.redhat.com/show_bug.cgi?id=1918933 > > Audio devices: > > $ lspci | grep -i audio > 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core > Processor HD Audio Controller (rev 06) > 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High > Definition Audio Controller (rev 05) > > OS: Fedora 33 > > I'm happy to provide any additional required info or test patches if you CC > me, since I'm not a kernel developer and am not subscribed to these lists. Can you share the full dmesg and also let us know which codecs are on your system? > Thanks. >
