Screen artifacts with new installation

Hi. I was recently forced to reinstall my custom archlinux and I decided to go for EndeavourOS. I have clean installation now and I am getting arcifacts on my external HDMI monitor (see screenshot). I have never had such problems on my previous system. I have hybrid notebook with Intel and Nvidia cards, but I don’t want to use nvidia driver, because when I am using it, my CPU goes crazy for some reason giving me 100% usage all the time even when system is completely idle. Is there some way to get rid of this artifacting while not using nvidia drivers? Thanks a lot

00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: skl_uncore

00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Bus: primary=00, secondary=01, subordinate=05, sec-latency=0
	I/O behind bridge: 00004000-00004fff [size=4K]
	Memory behind bridge: a3000000-a40fffff [size=17M]
	Prefetchable memory behind bridge: 0000000090000000-00000000a1ffffff [size=288M]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-H GT2 [UHD Graphics 630] (prog-if 00 [VGA controller])
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 138
	Memory at a2000000 (64-bit, non-prefetchable) [size=16M]
	Memory at b0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 5000 [size=64]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 255
	Memory at a441c000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>

00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at a441d000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel_pch_thermal
	Kernel modules: intel_pch_thermal

00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10) (prog-if 30 [XHCI])
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, medium devsel, latency 0, IRQ 135
	Memory at a4400000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0
	Memory at a4418000 (64-bit, non-prefetchable) [size=8K]
	Memory at a441e000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>

00:14.3 Network controller: Intel Corporation Cannon Lake PCH CNVi WiFi (rev 10)
	Subsystem: Intel Corporation Wireless-AC 9560
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at a4410000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

00:15.0 Serial bus controller: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at 8f800000 (64-bit, non-prefetchable) [virtual] [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

00:15.1 Serial bus controller: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #1 (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 17
	Memory at 8f801000 (64-bit, non-prefetchable) [virtual] [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 136
	Memory at a4421000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:17.0 SATA controller: Intel Corporation Cannon Lake Mobile PCH SATA AHCI Controller (rev 10) (prog-if 01 [AHCI 1.0])
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 125
	Memory at a441a000 (32-bit, non-prefetchable) [size=8K]
	Memory at a4426000 (32-bit, non-prefetchable) [size=256]
	I/O ports at 5080 [size=8]
	I/O ports at 5088 [size=4]
	I/O ports at 5060 [size=32]
	Memory at a4425000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 122
	Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
	I/O behind bridge: [disabled]
	Memory behind bridge: a4300000-a43fffff [size=1M]
	Prefetchable memory behind bridge: [disabled]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.5 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #14 (rev f0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 123
	Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
	I/O behind bridge: 00003000-00003fff [size=4K]
	Memory behind bridge: a4200000-a42fffff [size=1M]
	Prefetchable memory behind bridge: [disabled]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1e.0 Communication controller: Intel Corporation Cannon Lake PCH Serial IO UART Host Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 20
	Memory at 8f802000 (64-bit, non-prefetchable) [virtual] [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

00:1f.0 ISA bridge: Intel Corporation HM470 Chipset LPC/eSPI Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, medium devsel, latency 0

00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 32, IRQ 146
	Memory at a4414000 (64-bit, non-prefetchable) [size=16K]
	Memory at a4100000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel, snd_soc_skl, snd_sof_pci_intel_cnl

00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: medium devsel, IRQ 16
	Memory at a4423000 (64-bit, non-prefetchable) [size=256]
	I/O ports at 5040 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

00:1f.5 Serial bus controller: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0
	Memory at fe010000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: intel-spi
	Kernel modules: intel_spi_pci

01:00.0 VGA compatible controller: NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] (rev a1) (prog-if 00 [VGA controller])
	Subsystem: Acer Incorporated [ALI] Device 1263
	Flags: bus master, fast devsel, latency 0, IRQ 147
	Memory at a3000000 (32-bit, non-prefetchable) [size=16M]
	Memory at 90000000 (64-bit, prefetchable) [size=256M]
	Memory at a0000000 (64-bit, prefetchable) [size=32M]
	I/O ports at 4000 [size=128]
	Expansion ROM at a4080000 [disabled] [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: nouveau
	Kernel modules: nouveau

01:00.1 Audio device: NVIDIA Corporation GP106 High Definition Audio Controller (rev a1)
	Subsystem: Acer Incorporated [ALI] Device 1263
	Flags: bus master, fast devsel, latency 0, IRQ 17
	Memory at a4000000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

06:00.0 Non-Volatile memory controller: Intel Corporation SSD 600P Series (rev 03) (prog-if 02 [NVM Express])
	Subsystem: Intel Corporation SSDPEKKW256G7 256GB
	Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
	Memory at a4300000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: nvme

07:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader (rev 01)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 134
	Memory at a4205000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at a4210000 [disabled] [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci

07:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
	Subsystem: Acer Incorporated [ALI] Device 1262
	Flags: bus master, fast devsel, latency 0, IRQ 139
	I/O ports at 3000 [size=256]
	Memory at a4204000 (64-bit, non-prefetchable) [size=4K]
	Memory at a4200000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8168
	Kernel modules: r8169, r8168

From my experience, the external monitor looks crap with nouveau driver on hybrid graphics. The only way I get a good image and acceleration with no tearing is to install the Nvidia driver. You can easily install it, try it out and if problematic remove it…

The problem with your cpu was that in arch or EOS?

What’s your Nvidia graphics card?

Please post output of inxi -G

Additional infos: https://discovery.endeavouros.com/nvidia/nvidia-installer/2021/03/

I also suggest trying lts kernel…

Try removing xf86-video-intel.

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Wow, removing it indeed solved my problem, everything works perfectly now. Thanks a lot

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Problem with CPU was on both, it started I think with kernel 5.15. That is not a problem for me, with integrated graphics everything works like a charm

Did not know this trick… Could be marked as solved then?

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