apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1708480/+attachment/4935612/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Description changed:
Upon upgrading to 17.04 (also confirmed in 17.10), heavy, almost
constant screen tearing presents itself immediately at the graphical or
text splash page (i.e., before the operating system loads). The tearing
continues after reaching the lock screen and logging in. The tearing is
nearly constant, stopping only for certain actions like using the mouse
or typing.
- The screen tearing can be "fixed" by issuing i915.enable_rc6=0 in the boot
parameter. However, this is a false fix as it turns off important power
management functions and, as a consequence, the fan runs constantly and on high.
- ---
- ApportVersion: 2.20.6-0ubuntu5
- Architecture: amd64
- AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: gdm 1557 F.... pulseaudio
- mbwd 1983 F.... pulseaudio
- DistroRelease: Ubuntu 17.10
- HibernationDevice: RESUME=UUID=df9f3e32-5bae-4502-b33e-55139a899d29
- InstallationDate: Installed on 2014-08-08 (1108 days ago)
- InstallationMedia:
-
- Lsusb:
- Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
- Bus 001 Device 004: ID 0cf3:e300 Atheros Communications, Inc.
- Bus 001 Device 003: ID 138a:0094 Validity Sensors, Inc.
- Bus 001 Device 002: ID 04f2:b5a4 Chicony Electronics Co., Ltd
- Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- MachineType: LENOVO 80VF
- NonfreeKernelModules: wl
- Package: linux (not installed)
- ProcFB: 0 inteldrmfb
- ProcKernelCmdLine: \boot\vmlinuz-4.12.0-11-generic ro
root=UUID=1a910545-e6ad-4ff1-a734-f42e00619f08 quiet splash
initrd=\boot\initrd.img-4.12.0-11-generic
- ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5
- PulseList:
- Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
- No PulseAudio daemon running, or not running as session daemon.
- RelatedPackageVersions:
- linux-restricted-modules-4.12.0-11-generic N/A
- linux-backports-modules-4.12.0-11-generic N/A
- linux-firmware 1.167
- Tags: artful
- Uname: Linux 4.12.0-11-generic x86_64
- UpgradeStatus: Upgraded to artful on 2017-08-02 (18 days ago)
- UserGroups:
-
- _MarkForUpload: True
- dmi.bios.date: 01/12/2017
- dmi.bios.vendor: LENOVO
- dmi.bios.version: 2JCN35WW
- dmi.board.asset.tag: NO Asset Tag
- dmi.board.name: Agera
- dmi.board.vendor: LENOVO
- dmi.board.version: SDK0J40709 WIN
- dmi.chassis.asset.tag: NO Asset Tag
- dmi.chassis.type: 31
- dmi.chassis.vendor: LENOVO
- dmi.chassis.version: Lenovo YOGA 910-13IKB
- dmi.modalias:
dmi:bvnLENOVO:bvr2JCN35WW:bd01/12/2017:svnLENOVO:pn80VF:pvrLenovoYOGA910-13IKB:rvnLENOVO:rnAgera:rvrSDK0J40709WIN:cvnLENOVO:ct31:cvrLenovoYOGA910-13IKB:
- dmi.product.family: IDEAPAD
- dmi.product.name: 80VF
- dmi.product.version: Lenovo YOGA 910-13IKB
- dmi.sys.vendor: LENOVO
+ The screen tearing can be "fixed" by issuing i915.enable_rc6=0 in the
+ boot parameter. However, this is a false fix as it turns off important
+ power management functions and, as a consequence, the fan runs
+ constantly and on high.
+
+ NOTE: if booted using the i915.enable_rc6=0 boot parameter and allowed
+ to run for a few hours, the computer becomes unstable and applications
+ begin to freeze.
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https://bugs.launchpad.net/bugs/1708480
Title:
Ubuntu 17.04/17.10 Screen Tearing on Intel KabyLake Graphics Cards
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