![]() ![]() Once I've gathered a few entries I will submit these files for upstream systemd inclusion. Once you've a working hwdb entry with a comment to a bug for this, please attach your modified 90-snd_hda_intel.hwdb here. Replacing uninteresting bits with a simple "*" as well as replacing the bios-data (bd) and bios-version (bvr) fields as those may vary depending on the installed BIOS version and we want to match all versions.Īdd a new entry for your device using the info from above.Ħ) Reboot, check that power_save is set to 0 again and that the sound problems are gone.Īs mentioned in the 90-snd_hda_intel.hwdb file I've to insist on people filing a bug for this at using component "Sound(ALSA)" and then add a link to the filed bug report as a comment to the hwdb entry you've added for this. The last device specific bit you need is the dmi modalias for your system:ĭmi:bvnAmericanMegatrendsInc.:bvrP7.00:bd:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnB150MPro4S/D3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: Now get detailed info on that ~]$ lspci -v -n -s 00:1f.3Īnd after the Subsystem: are the values you are looking for. Run:Ġ0:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31) There are 3 device specific parts you need to fill in, lets star with the pci-subsys-vendor-id and pci-subsys-device-id. So assuming you can now reproduce the problem, it is time to create a blacklist entry:ģ) Edit /etc/udev/hwdb.d/90-snd_hda_intel.hwdb and add an entry for your device there, lets take a look at the example entry: If not do "uname -r" to make sure you are running the 4.15.86_64 kernel and if you are, you got lucky and the bug got fixed in the latest kernel :) Should now output 1 and this should give you the sound problems this bug was originally about again. Sudo rpm -ivh kernel-core-4.15.86_64.rpm kernel-modules-4.15.86_64.rpmĬat /sys/module/snd_hda_intel/parameters/power_save #REALTEK ALC3246 LINUX UPGRADE#The plan is to use a blacklist for devices on which this causes issues and I need your help to populate this blacklist, getting your device on this list know means that things will just work when you upgrade to F28 later.įirst of all to test this I need you to (temporarily) switch to running a Fedora 28 kernel, download these 2 files: But for F28 we are going to turn this on by default as it results in a significant power-saving. So this bug has been closed because this is fixed by disabling the codec autosuspend for F26 and F27. It looks like power saving simply disable the sound device which will always cause an problem like this if the sound system isn't power off too. In other words a noise because of a missing input source. It's the same noise if you unplug a electric guitar from an amplifier if you forgot to power off the amplifier first. Well it's normal that i hear a noise in my speakers if i start the system from grub2 until kernel finishing sound setup.īut with 'power-saving active' the noise come back with further booting and in X session. My board is a asus P5Q_Deluxe (not very new :-)) and i use a 5.1 loudspeaker system from logitec. Monitor Source: alsa_output.pci-0000_00_1b.0.analog-surround-51.monitorįlags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCYĪlsa.long_card_name = "HDA Intel at 0xfcff8000 irq 27" Name: alsa_output.pci-0000_00_1b.0.analog-surround-51ĭescription: Internes Audio Analog Surround 5.1Ĭhannel Map: front-left,front-right,rear-left,rear-right,front-center,lfe Lspci output from Gigabyte H81M-DS2V system Intel DQ35JO desktop motherboard lspci output #REALTEK ALC3246 LINUX PATCH#Test patch to change ALC882 codec shutup callback Lspci -v -nn -s 00:1b.0 for Asrock H81M-HDSĪlsa-info.sh -no-upload for Asrock H81M-HDS ![]() Lspci -v -nn -s 00:1b.0 for Gigabyte GA-Z87X-UD3HĪlsa-info.sh -no-upload for Gigabyte GA-Z87X-UD3H ![]()
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