Public bug reported:
i915 enable_rc6=0 is not respected. I want to disable rc6 power savings
because it is a tower
machine with a kilowatt supply and lots of fan so I don't give a rip about
power consumption, I do not
want my display interrupted while I'm watching a movie or video and when
monitoring things I want to
be able to walk by the monitor and see what is going on without having to go up
and wiggle the mouse
and wait for it to wake up and my monitor to sync.
I have an i7-9700k on an Asus Z390A Prime motherboard. I have
enable RC6 disabled in the BIOS so BIOS isn't enabling it, in
/etc/modprobe.d/i915.conf I have:
options i915 enable_guc=3 enable_dc=0 enable_rc6=0
In /etc/default/grub I have:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash xdg.force_integrated=1
modprobe.blacklist=nouveau i915.i915_enable_rc6=0"
I have done update-grub2 and update-initramfs -u -k all and
rebooted, but still:
cat /sys/class/drm/card0/power/rc6_enable
1
The kernel totally ignores my instructions and enables the damned
thing anyway. ARRGGH!
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-lowlatency 5.0.0.28.29
ProcVersionSignature: Ubuntu 5.0.0-28.30-lowlatency 5.0.21
Uname: Linux 5.0.0-28-lowlatency x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nanook 4342 F.... pulseaudio
CurrentDesktop: MATE
Date: Tue Sep 10 16:14:06 2019
MachineType: System manufacturer System Product Name
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-28-lowlatency
root=UUID=718970be-1c9c-4b4e-8940-1e26324e158b ro console=tty1 console=ttyS0
panic=-1
RelatedPackageVersions:
linux-restricted-modules-5.0.0-28-lowlatency N/A
linux-backports-modules-5.0.0-28-lowlatency N/A
linux-firmware 1.178.4
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/06/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1105
dmi.board.asset.tag: Default string
dmi.board.name: PRIME Z390-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1105:bd06/06/2019:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEZ390-A:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: ASUS_MB_CNL
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug disco package-from-proposed
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https://bugs.launchpad.net/bugs/1843511
Title:
i915 enable_rc6=0 not respected
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