From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 194963] New: schedutil governor causes audio problem in game
Date: Thu, 23 Mar 2017 10:40:58 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=194963
Bug ID: 194963
Summary: schedutil governor causes audio problem in game
Product: Power Management
Version: 2.5
Kernel Version: 4.10.4
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
Assignee: linux-pm@vger.kernel.org
Reporter: john.ettedgui@gmail.com
Regression: No
Created attachment 255443
--> https://bugzilla.kernel.org/attachment.cgi?id=255443&action=edit
dmesg
Hello,
I'm on the kernel 4.10.4 but I've had the same issues for a few weeks already,
definitely on .3 and probably on .2 but not sure anymore.
When I switched the cpu governor from ondemand or performance to schedutil, it
all seemed fine, but actually playing a game in wine gives me audio cracking
every now and then, fairly similarly to when we didn't have a pulseaudio
backend in wine. (I have not tried using only alsa).
Interestingly I've tried 2 different games in Wine and the problem only happens
with one, I assume the more CPU intensive one: StarCraft 2.
Restarting the computer, killing pulseaudio and restarting it, limiting the
apps opened, not of that changed anything, but switching the governor back
fixed it right away.
My CPU is an Intel i7 4790k, this is my kernel line:
linux /vmlinuz-linux root=/dev/sda3 rw rootfstype=btrfs raid=noautodetect
intel_iommu=on quiet add_efi_memmap clocksource=hpet hpet=enable splash
consoleblank=0 intel_pstate=disable sysrq_always_enabled=1
I am not sure what else to provide, there was nothing in dmesg that seemed
related, nor any error in Wine, please tell me how I can help.
Thank you,
John
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