Screen Flickering Randomly

knimer

Hello, Please note the video link showing the issue.

This happens repeatedly but at random times.

What details do you want me to send?

knimer

For a starter, please note the below commands output:

uname -a Linux knimer-solus 5.11.16-178.current #1 SMP PREEMPT Tue Apr 27 11:38:11 UTC 2021 x86_64 GNU/Linux

Also,

knimer-solus description: Notebook product: 20L7001PAD (LENOVO_MT_20L7_BU_Think_FM_ThinkPad T480s) vendor: LENOVO version: ThinkPad T480s serial: PC0V18C5 width: 4294967295 bits capabilities: smbios-3.0 dmi-3.0 smp vsyscall32 configuration: administrator_password=disabled chassis=notebook family=ThinkPad T480s power-on_password=disabled sku=LENOVO_MT_20L7_BU_Think_FM_ThinkPad T480s uuid=CC8D2F37-671F-B211-A85C-DEC40E0FF972 *-core description: Motherboard product: 20L7001PAD vendor: LENOVO physical id: 0 version: SDK0J40697 WIN serial: L1HF84V00KB slot: Not Available *-memory description: System Memory physical id: 3 slot: System board or motherboard size: 8GiB *-bank:0 description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0.4 ns) product: M471A1K43BB1-CRC vendor: Samsung physical id: 0 serial: 00000000 slot: ChannelA-DIMM0 size: 8GiB width: 64 bits clock: 2400MHz (0.4ns) *-bank:1 description: [empty] physical id: 1 slot: ChannelB-DIMM0 *-cache:0 description: L1 cache physical id: 7 slot: L1 Cache size: 256KiB capacity: 256KiB capabilities: synchronous internal write-back unified configuration: level=1 *-cache:1 description: L2 cache physical id: 8 slot: L2 Cache size: 1MiB capacity: 1MiB capabilities: synchronous internal write-back unified configuration: level=2 *-cache:2 description: L3 cache physical id: 9 slot: L3 Cache size: 8MiB capacity: 8MiB capabilities: synchronous internal write-back unified configuration: level=3 *-cpu description: CPU product: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz vendor: Intel Corp. physical id: a bus info: cpu@0 version: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz serial: None slot: U3E1 size: 3695MHz capacity: 4GHz width: 64 bits clock: 100MHz capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d cpufreq configuration: cores=4 enabledcores=4 threads=8 *-firmware description: BIOS vendor: LENOVO physical id: b version: N22ET66W (1.43 ) date: 10/12/2020 size: 128KiB capacity: 15MiB capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification uefi *-pci description: Host bridge product: Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers vendor: Intel Corporation physical id: 100 bus info: pci@0000:00:00.0 version: 08 width: 32 bits clock: 33MHz configuration: driver=skl_uncore resources: irq:0 *-display description: VGA compatible controller product: UHD Graphics 620 vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 07 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:136 memory:db000000-dbffffff memory:80000000-9fffffff ioport:e000(size=64) memory:c0000-dffff *-generic:0 UNCLAIMED description: Signal processing controller product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem vendor: Intel Corporation physical id: 4 bus info: pci@0000:00:04.0 version: 08 width: 64 bits clock: 33MHz capabilities: msi pm cap_list configuration: latency=0 resources: memory:dc240000-dc247fff *-generic:1 UNCLAIMED description: System peripheral product: Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model vendor: Intel Corporation physical id: 8 bus info: pci@0000:00:08.0 version: 00 width: 64 bits clock: 33MHz capabilities: msi pm cap_list configuration: latency=0 resources: memory:dc250000-dc250fff *-usb description: USB controller product: Sunrise Point-LP USB 3.0 xHCI Controller vendor: Intel Corporation physical id: 14 bus info: pci@0000:00:14.0 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:135 memory:dc230000-dc23ffff *-usbhost:0 product: xHCI Host Controller vendor: Linux 5.11.16-178.current xhci-hcd physical id: 0 bus info: usb@1 logical name: usb1 version: 5.11 capabilities: usb-2.00 configuration: driver=hub slots=12 speed=480Mbit/s *-usb:0 UNCLAIMED description: Smart card reader product: EMV Smartcard Reader vendor: Generic physical id: 3 bus info: usb@1:3 version: 1.20 capabilities: usb-2.01 configuration: maxpower=50mA speed=12Mbit/s *-usb:1 description: Video product: Integrated Camera vendor: Chicony Electronics Co.,Ltd. physical id: 8 bus info: usb@1:8 version: 0.27 serial: 0001 capabilities: usb-2.01 configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s *-usb:2 UNCLAIMED description: Generic USB device product: Metallica MIS Touch Fingerprint Reader vendor: Synaptics, Inc. physical id: 9 bus info: usb@1:9 version: 1.64 serial: f6b7b8079614 capabilities: usb-2.00 configuration: maxpower=100mA speed=12Mbit/s *-usbhost:1 product: xHCI Host Controller vendor: Linux 5.11.16-178.current xhci-hcd physical id: 1 bus info: usb@2 logical name: usb2 version: 5.11 capabilities: usb-3.00 configuration: driver=hub slots=6 speed=5000Mbit/s *-usb description: Mass storage device product: USB3.0-CRW vendor: Generic physical id: 3 bus info: usb@2:3 version: 2.04 serial: 20120501030900000 capabilities: usb-3.00 scsi configuration: driver=usb-storage maxpower=800mA speed=5000Mbit/s *-generic:2 UNCLAIMED description: Signal processing controller product: Sunrise Point-LP Thermal subsystem vendor: Intel Corporation physical id: 14.2 bus info: pci@0000:00:14.2 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi cap_list configuration: latency=0 resources: memory:dc251000-dc251fff *-generic:3 description: Signal processing controller product: Sunrise Point-LP Serial IO I2C Controller #0 vendor: Intel Corporation physical id: 15 bus info: pci@0000:00:15.0 version: 21 width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=intel-lpss latency=0 resources: irq:16 memory:dc252000-dc252fff *-communication description: Communication controller product: Sunrise Point-LP CSME HECI #1 vendor: Intel Corporation physical id: 16 bus info: pci@0000:00:16.0 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=mei_me latency=0 resources: irq:126 memory:dc253000-dc253fff *-pci:0 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #1 vendor: Intel Corporation physical id: 1c bus info: pci@0000:00:1c.0 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:122 ioport:2000(size=4096) memory:7c800000-7c9fffff ioport:7ca00000(size=2097152) *-pci:1 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #5 vendor: Intel Corporation physical id: 1c.4 bus info: pci@0000:00:1c.4 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:123 ioport:3000(size=4096) memory:c4000000-da0fffff ioport:a0000000(size=570425344) *-pci:2 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #7 vendor: Intel Corporation physical id: 1c.6 bus info: pci@0000:00:1c.6 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:124 memory:dc100000-dc1fffff *-network description: Wireless interface product: Wireless 8265 / 8275 vendor: Intel Corporation physical id: 0 bus info: pci@0000:3d:00.0 logical name: wlp61s0 version: 78 serial: b4:6b:fc:3d:8f:6f width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=5.11.16-178.current firmware=36.ad812ee0.0 8265-36.ucode ip=10.10.10.147 latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:139 memory:dc100000-dc101fff *-pci:3 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #9 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:125 memory:dc000000-dc0fffff *-storage description: Non-Volatile memory controller product: Sandisk Corp vendor: Sandisk Corp physical id: 0 bus info: pci@0000:3e:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: storage pm msi msix pciexpress nvm_express bus_master cap_list configuration: driver=nvme latency=0 resources: irq:16 memory:dc000000-dc003fff memory:dc004000-dc0040ff *-isa description: ISA bridge product: Sunrise Point LPC Controller/eSPI Controller vendor: Intel Corporation physical id: 1f bus info: pci@0000:00:1f.0 version: 21 width: 32 bits clock: 33MHz capabilities: isa bus_master configuration: latency=0 *-memory UNCLAIMED description: Memory controller product: Sunrise Point-LP PMC vendor: Intel Corporation physical id: 1f.2 bus info: pci@0000:00:1f.2 version: 21 width: 32 bits clock: 33MHz (30.3ns) configuration: latency=0 resources: memory:dc24c000-dc24ffff *-multimedia description: Audio device product: Sunrise Point-LP HD Audio vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=snd_hda_intel latency=64 resources: irq:128 memory:dc248000-dc24bfff memory:dc220000-dc22ffff *-serial description: SMBus product: Sunrise Point-LP SMBus vendor: Intel Corporation physical id: 1f.4 bus info: pci@0000:00:1f.4 version: 21 width: 64 bits clock: 33MHz configuration: driver=i801_smbus latency=0 resources: irq:16 memory:dc254000-dc2540ff ioport:efa0(size=32) *-network description: Ethernet interface product: Ethernet Connection (4) I219-V vendor: Intel Corporation physical id: 1f.6 bus info: pci@0000:00:1f.6 logical name: enp0s31f6 version: 21 serial: 8c:16:45:72:a0:18 size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.11.16-178.current duplex=full firmware=0.1-4 ip=10.10.10.164 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:140 memory:dc200000-dc21ffff *-battery product: 01AV479 vendor: SMP physical id: 1 slot: Front capacity: 57020mWh configuration: voltage=11.5V *-scsi physical id: 2 bus info: scsi@0 logical name: scsi0 capabilities: scsi-host configuration: driver=usb-storage

JoshStrobl

Upstream issue: https://gitlab.freedesktop.org/drm/intel/-/issues/1142

knimer

Thank you.. then will start lobbying there 😁