| 2018-08-07 22:32:30 |
Prefernot Tosay |
bug |
|
|
added bug |
| 2018-08-07 22:51:13 |
Prefernot Tosay |
description |
Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen flashing.
Neither have the problem in Windows (ie hardware fine)
I installed the standard Ubuntu 18.04 on each of them (same USB Key, few weeks apart) but only the 81BV / 8th gen / UHD 620 Rev 07 has the problem.
Flickering visible on video here: https://photos.app.goo.gl/HCN73q1nQfgstgVBA
I've used ubuntu-bug so I believe you have all the details of the machine. The install came straight from your standard 18.04 download. Any changes are due to me trying to fix this (not much prev exp of kernel params etc)
Things tried but which didn't work were:
enable huc/guc (got it to load but no change)
enable_rc6=0 (just stopped sleep / resume working)
edp_vswing=2
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
Date: Tue Aug 7 23:09:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
InstallationDate: Installed on 2018-08-06 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
Bus 001 Device 003: ID 5986:210d Acer, Inc
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81BV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 i915.enable_guc_loading=1
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MCN27WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13IKB
dmi.modalias: dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
dmi.product.family: ideapad 720S-13IKB
dmi.product.name: 81BV
dmi.product.version: Lenovo ideapad 720S-13IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 |
Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
(1) model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
(2) model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen flashing.
Neither have the problem in Windows (ie hardware fine). Both have UHD 3840x2160 resolution (not sure why (1) says Intel HD graphics instead of UHD)
I installed the standard Ubuntu 18.04 on each of them (same USB Key image, a few weeks apart) but only (2) the 81BV / 8th gen / UHD 620 Rev 07 has the problem.
Flickering visible on video here: https://photos.app.goo.gl/HCN73q1nQfgstgVBA
I would describe as lots of random-looking colours in horizontal lines, as though the wrong memory was being mapped to the screen. Happens constantly/sporadically every second or two. (under zero / negligible load). Looks low-level, not associated with windows / graphics artefacts.
Problem does not occur under Windows(TM) 10, nor with grub editor, but does occur with console. (I can video the boot if it helps)
I've used ubuntu-bug so I believe you have all the details of the machine. The install came straight from your standard 18.04 download. Any changes are due to me trying to fix this (not much prev exp of kernel params etc)
Things tried but which didn't work were:
enable huc/guc (got it to load but no change)
enable_rc6=0 (just stopped sleep / resume working)
edp_vswing=2
upgrade bios to 6MCN27WW (was -18WW I think)
Many thanks. (Text below is generated by ubuntu-bug)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
Date: Tue Aug 7 23:09:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
InstallationDate: Installed on 2018-08-06 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
Bus 001 Device 003: ID 5986:210d Acer, Inc
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81BV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 i915.enable_guc_loading=1
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MCN27WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13IKB
dmi.modalias: dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
dmi.product.family: ideapad 720S-13IKB
dmi.product.name: 81BV
dmi.product.version: Lenovo ideapad 720S-13IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 |
|
| 2018-08-07 22:54:21 |
Prefernot Tosay |
description |
Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
(1) model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
(2) model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen flashing.
Neither have the problem in Windows (ie hardware fine). Both have UHD 3840x2160 resolution (not sure why (1) says Intel HD graphics instead of UHD)
I installed the standard Ubuntu 18.04 on each of them (same USB Key image, a few weeks apart) but only (2) the 81BV / 8th gen / UHD 620 Rev 07 has the problem.
Flickering visible on video here: https://photos.app.goo.gl/HCN73q1nQfgstgVBA
I would describe as lots of random-looking colours in horizontal lines, as though the wrong memory was being mapped to the screen. Happens constantly/sporadically every second or two. (under zero / negligible load). Looks low-level, not associated with windows / graphics artefacts.
Problem does not occur under Windows(TM) 10, nor with grub editor, but does occur with console. (I can video the boot if it helps)
I've used ubuntu-bug so I believe you have all the details of the machine. The install came straight from your standard 18.04 download. Any changes are due to me trying to fix this (not much prev exp of kernel params etc)
Things tried but which didn't work were:
enable huc/guc (got it to load but no change)
enable_rc6=0 (just stopped sleep / resume working)
edp_vswing=2
upgrade bios to 6MCN27WW (was -18WW I think)
Many thanks. (Text below is generated by ubuntu-bug)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
Date: Tue Aug 7 23:09:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
InstallationDate: Installed on 2018-08-06 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
Bus 001 Device 003: ID 5986:210d Acer, Inc
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81BV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 i915.enable_guc_loading=1
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MCN27WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13IKB
dmi.modalias: dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
dmi.product.family: ideapad 720S-13IKB
dmi.product.name: 81BV
dmi.product.version: Lenovo ideapad 720S-13IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 |
Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
(1) model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
(2) model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen flashing.
Neither have the problem in Windows (ie hardware fine). Both have UHD 3840x2160 resolution (not sure why (1) says Intel HD graphics instead of UHD)
I installed the standard Ubuntu 18.04 on each of them (same USB Key image, a few weeks apart) but only (2) the 81BV / 8th gen / UHD 620 Rev 07 has the problem.
Flickering visible on video here: https://photos.app.goo.gl/HCN73q1nQfgstgVBA
I would describe it as lots of random-looking colours in horizontal lines, as though the wrong memory was being mapped to the screen. Happens constantly/sporadically every second or two. (under zero / negligible load). Looks low-level, not associated with windows / graphics artefacts.
Problem does not occur under Windows(TM) 10, nor with grub editor, but does occur with console during boot. (I can video the boot if it helps)
I've used ubuntu-bug so I believe you have all the details of the machine. The install came straight from your standard 18.04 download. It immediately had the problem, including when running from the USB image. Any changes from the default install are due to me trying to fix this problem (I do not have much previous experience of kernel params etc)
Things tried but which didn't work were:
- enable huc/guc (got it to load but no change)
- enable_rc6=0 (just stopped sleep / resume working)
- edp_vswing=2
- upgrade Lenovo bios to 6MCN27WW (was -18WW I think)
- apt update/upgrade.
Many thanks. (Text below is generated by ubuntu-bug)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
Date: Tue Aug 7 23:09:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
InstallationDate: Installed on 2018-08-06 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
Bus 001 Device 003: ID 5986:210d Acer, Inc
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81BV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 i915.enable_guc_loading=1
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MCN27WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13IKB
dmi.modalias: dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
dmi.product.family: ideapad 720S-13IKB
dmi.product.name: 81BV
dmi.product.version: Lenovo ideapad 720S-13IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 |
|
| 2018-08-07 22:57:05 |
Prefernot Tosay |
description |
Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
(1) model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
(2) model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen flashing.
Neither have the problem in Windows (ie hardware fine). Both have UHD 3840x2160 resolution (not sure why (1) says Intel HD graphics instead of UHD)
I installed the standard Ubuntu 18.04 on each of them (same USB Key image, a few weeks apart) but only (2) the 81BV / 8th gen / UHD 620 Rev 07 has the problem.
Flickering visible on video here: https://photos.app.goo.gl/HCN73q1nQfgstgVBA
I would describe it as lots of random-looking colours in horizontal lines, as though the wrong memory was being mapped to the screen. Happens constantly/sporadically every second or two. (under zero / negligible load). Looks low-level, not associated with windows / graphics artefacts.
Problem does not occur under Windows(TM) 10, nor with grub editor, but does occur with console during boot. (I can video the boot if it helps)
I've used ubuntu-bug so I believe you have all the details of the machine. The install came straight from your standard 18.04 download. It immediately had the problem, including when running from the USB image. Any changes from the default install are due to me trying to fix this problem (I do not have much previous experience of kernel params etc)
Things tried but which didn't work were:
- enable huc/guc (got it to load but no change)
- enable_rc6=0 (just stopped sleep / resume working)
- edp_vswing=2
- upgrade Lenovo bios to 6MCN27WW (was -18WW I think)
- apt update/upgrade.
Many thanks. (Text below is generated by ubuntu-bug)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
Date: Tue Aug 7 23:09:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
InstallationDate: Installed on 2018-08-06 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
Bus 001 Device 003: ID 5986:210d Acer, Inc
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81BV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 i915.enable_guc_loading=1
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MCN27WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13IKB
dmi.modalias: dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
dmi.product.family: ideapad 720S-13IKB
dmi.product.name: 81BV
dmi.product.version: Lenovo ideapad 720S-13IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 |
Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen flashing.
Neither have the problem in Windows (ie hardware fine)
I installed the standard Ubuntu 18.04 on each of them (same USB Key, few weeks apart) but only the 81BV / 8th gen / UHD 620 Rev 07 has the problem.
Flickering visible on video here: https://photos.app.goo.gl/HCN73q1nQfgstgVBA
I've used ubuntu-bug so I believe you have all the details of the machine. The install came straight from your standard 18.04 download. Any changes are due to me trying to fix this (not much prev exp of kernel params etc)
Things tried but which didn't work were:
- enable huc/guc (got it to load - it's now visible in the attached dmesg - but didn't help.)
- enable_rc6=0 (just stopped sleep / resume working)
- edp_vswing=2
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
Date: Tue Aug 7 23:09:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
InstallationDate: Installed on 2018-08-06 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
Bus 001 Device 003: ID 5986:210d Acer, Inc
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81BV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 i915.enable_guc_loading=1
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MCN27WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 720S-13IKB
dmi.modalias: dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
dmi.product.family: ideapad 720S-13IKB
dmi.product.name: 81BV
dmi.product.version: Lenovo ideapad 720S-13IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 |
|
| 2018-09-07 05:03:20 |
Timo Aaltonen |
affects |
xserver-xorg-video-intel (Ubuntu) |
linux (Ubuntu) |
|
| 2018-09-07 05:30:15 |
Ubuntu Kernel Bot |
linux (Ubuntu): status |
New |
Confirmed |
|
| 2018-09-11 15:07:04 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
Medium |
|
| 2018-09-11 15:07:07 |
Joseph Salisbury |
linux (Ubuntu): status |
Confirmed |
Incomplete |
|
| 2018-11-10 21:42:38 |
Prefernot Tosay |
bug watch added |
|
https://bugs.freedesktop.org/show_bug.cgi?id=108132 |
|
| 2018-12-16 13:00:27 |
Brecht Desmeijter |
bug |
|
|
added subscriber Brecht Desmeijter |
| 2019-01-10 08:56:47 |
Guy Romm |
bug |
|
|
added subscriber Guy Romm |
| 2019-03-30 10:59:18 |
Roland Ziegler |
bug |
|
|
added subscriber Roland Ziegler |
| 2019-04-12 01:14:45 |
Daniel van Vugt |
summary |
Screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s 13IKB 81BV |
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s 13IKB 81BV |
|
| 2019-04-12 01:16:24 |
Daniel van Vugt |
bug task added |
|
linux |
|
| 2019-04-19 10:51:13 |
Bug Watch Updater |
linux: status |
Unknown |
Incomplete |
|
| 2019-04-19 10:51:13 |
Bug Watch Updater |
linux: importance |
Unknown |
Medium |
|
| 2019-05-30 22:40:49 |
Bug Watch Updater |
linux: status |
Incomplete |
Confirmed |
|
| 2019-10-02 08:29:10 |
Roland Ziegler |
removed subscriber Roland Ziegler |
|
|
|
| 2019-10-23 19:06:37 |
Bug Watch Updater |
linux: status |
Confirmed |
Incomplete |
|
| 2019-11-30 07:06:26 |
Bug Watch Updater |
linux: status |
Incomplete |
Unknown |
|
| 2019-11-30 07:06:34 |
Bug Watch Updater |
bug watch added |
|
https://gitlab.freedesktop.org/drm/intel/issues/166 |
|
