I have two different displays (144hz and 60Hz) connected to a single NVIDIA GPU. While both displays work, I get terrible lag when performing tasks and severe frame drops when streaming video. This happens in multiple desktop environments. This issue does not occur with a single monitor.
I've investigated a few options:
https://wiki.archlinux.org/title/NVIDIA#TwinView
In addition, i tested various desktop environments, as well as manually setting each screen to 60hz with no improvement.
I have both these monitors configured as a single X screen. I ran into other issues when trying to configure it as a separate x screens. Should i investigate this approach instead?
This is my x configuration:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 495.46
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 495.46
Section "ServerLayout"
# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "LG Electronics 27GL850"
HorizSync 230.0 - 230.0
VertRefresh 48.0 - 144.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "LG Electronics 23EA63"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 61.0
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVIDIA GeForce GTX 1080"
BusID "PCI:45:0:0"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVIDIA GeForce GTX 1080"
BusID "PCI:45:0:0"
Screen 1
EndSection
Section "Screen"
# Removed Option "metamodes" "DP-2: nvidia-auto-select +0+0, HDMI-0: nvidia-auto-select +2560+360"
# Removed Option "metamodes" "DP-2: nvidia-auto-select +0+0"
# Removed Option "metamodes" "DP-2: nvidia-auto-select +0+0, HDMI-0: nvidia-auto-select +2560+0"
# Removed Option "metamodes" "DP-2: 2560x1440_144 +0+0, HDMI-0: 1920x1080_50 +2560+360"
# Removed Option "metamodes" "DP-2: 2560x1440_60 +0+0, HDMI-0: 1920x1080_60 +2560+360"
# Removed Option "metamodes" "DP-2: 2560x1440 +0+0, HDMI-0: 1920x1080 +2560+360"
# Removed Option "metamodes" "DP-2: 2560x1440 +0+0"
# Removed Option "metamodes" "DP-2: 2560x1440 +0+0, HDMI-0: 1920x1080 +2560+360"
# Removed Option "metamodes" "DP-2: 2560x1440 +0+0"
# Removed Option "metamodes" "DP-2: 2560x1440 +0+0 {ForceCompositionPipeline=On}"
# Removed Option "metamodes" "DP-2: 2560x1440_144 +0+0 {ForceCompositionPipeline=On}"
# Removed Option "metamodes" "DP-2: 2560x1440_144 +0+0 {ForceCompositionPipeline=On}, HDMI-0: nvidia-auto-select +2560+0"
# Removed Option "metamodes" "DP-2: 2560x1440_144 +0+0 {ForceCompositionPipeline=On}, HDMI-0: 1920x1080_60 +2560+0"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-4"
Option "metamodes" "DP-2: 2560x1440_144 +0+0 {ForceCompositionPipeline=On}, HDMI-0: 1920x1080_60 +2560+360"
Option "SLI" "Off"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "HDMI-0: nvidia-auto-select +0+0 {AllowGSYNC=Off}"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-1"
Option "metamodes" "HDMI-0: nvidia-auto-select +0+0 {ForceCompositionPipeline=On, AllowGSYNC=Off}"
Option "SLI" "Off"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
This is my system information:
System:
Kernel: 5.16.2-zen1-1-zen x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-zen
root=UUID=052b08b6-4b04-4770-b2cb-31b98943efb3 rw rootflags=subvol=@
quiet splash rd.udev.log_priority=3 vt.global_cursor_default=0
systemd.unified_cgroup_hierarchy=1
resume=UUID=dc95f6f1-c463-4373-8178-702b16ab719e loglevel=3
Desktop: N/A wm: LG3D vt: 1 dm: GDM 41.3, SDDM Distro: Garuda Linux
base: Arch Linux
Machine:
Type: Desktop Mobo: Micro-Star model: MPG X570 GAMING PLUS (MS-7C37) v: 2.0
serial: <superuser required> UEFI-[Legacy]: American Megatrends v: A.40
date: 09/10/2019
CPU:
Info: model: AMD Ryzen 5 3600X bits: 64 type: MT MCP arch: Zen 2
family: 0x17 (23) model-id: 0x71 (113) stepping: 0 microcode: 0x8701013
Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
L1: 384 KiB desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB
L3: 32 MiB desc: 2x16 MiB
Speed (MHz): avg: 3856 high: 4307 min/max: N/A cores: 1: 3800 2: 3800
3: 3967 4: 4307 5: 3800 6: 3800 7: 3800 8: 3800 9: 3800 10: 3800 11: 3800
12: 3800 bogomips: 91194
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional,
STIBP: always-on, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA GP104 [GeForce GTX 1080] vendor: eVga.com. driver: nvidia
v: 495.46 alternate: nouveau,nvidia_drm bus-ID: 2d:00.0 chip-ID: 10de:1b80
class-ID: 0300
Device-2: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo
bus-ID: 5-1.2:3 chip-ID: 046d:0825 class-ID: 0102 serial: <filter>
Display: x11 server: X.Org 1.21.1.3 compositor: picom v: git-c4107
driver: loaded: nvidia note: n/a (using device driver) - try sudo/root
unloaded: nvidia display-ID: :0 screens: 1
Screen-1: 0 s-res: 4480x1440 s-dpi: 95 s-size: 1198x389mm (47.2x15.3")
s-diag: 1260mm (49.6")
Monitor-1: HDMI-0 res: 1920x1080 hz: 60 dpi: 96
size: 510x290mm (20.1x11.4") diag: 587mm (23.1")
Monitor-2: DP-2 res: 2560x1440 hz: 144 dpi: 109
size: 597x336mm (23.5x13.2") diag: 685mm (27")
OpenGL: renderer: NVIDIA GeForce GTX 1080/PCIe/SSE2
v: 4.6.0 NVIDIA 495.46 direct render: Yes
Audio:
Device-1: NVIDIA GP104 High Definition Audio vendor: eVga.com.
driver: snd_hda_intel v: kernel bus-ID: 2d:00.1 chip-ID: 10de:10f0
class-ID: 0403
Device-2: AMD Starship/Matisse HD Audio vendor: Micro-Star MSI
driver: snd_hda_intel v: kernel bus-ID: 2f:00.4 chip-ID: 1022:1487
class-ID: 0403
Device-3: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo
bus-ID: 5-1.2:3 chip-ID: 046d:0825 class-ID: 0102 serial: <filter>
Sound Server-1: ALSA v: k5.16.2-zen1-1-zen running: yes
Sound Server-2: JACK v: 1.9.20 running: no
Sound Server-3: PulseAudio v: 15.0 running: no
Sound Server-4: PipeWire v: 0.3.43 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Micro-Star MSI X570-A PRO driver: r8169 v: kernel port: d000
bus-ID: 27:00.0 chip-ID: 10ec:8168 class-ID: 0200
IF: enp39s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Bluetooth:
Device-1: Broadcom BCM20702A0 Bluetooth 4.0 type: USB driver: btusb v: 0.8
bus-ID: 3-6.4:4 chip-ID: 0a5c:21e8 class-ID: fe01 serial: <filter>
Report: bt-adapter ID: hci0 rfk-id: 0 state: down
bt-service: enabled,running rfk-block: hardware: no software: yes
address: <filter>
Drives:
Local Storage: total: 6.38 TiB used: 345.48 GiB (5.3%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung
model: SSD 970 EVO Plus 2TB size: 1.82 TiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
rev: 2B2QEXM7 temp: 34.9 C scheme: GPT
ID-2: /dev/nvme1n1 maj-min: 259:5 vendor: Samsung
model: SSD 970 EVO 500GB size: 465.76 GiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
rev: 2B2QEXE7 temp: 31.9 C scheme: MBR
ID-3: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 850 PRO 512GB
size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
type: SSD serial: <filter> rev: 2B6Q scheme: MBR
ID-4: /dev/sdb maj-min: 8:16 vendor: Western Digital
model: WD4000FYYZ-01UL1B2 size: 3.64 TiB block-size: physical: 512 B
logical: 512 B speed: 6.0 Gb/s type: HDD rpm: 7200 serial: <filter>
rev: 1K03 scheme: MBR
Partition:
ID-1: / raw-size: 431.26 GiB size: 431.26 GiB (100.00%)
used: 345.48 GiB (80.1%) fs: btrfs dev: /dev/nvme1n1p1 maj-min: 259:6
ID-2: /home raw-size: 431.26 GiB size: 431.26 GiB (100.00%)
used: 345.48 GiB (80.1%) fs: btrfs dev: /dev/nvme1n1p1 maj-min: 259:6
ID-3: /var/log raw-size: 431.26 GiB size: 431.26 GiB (100.00%)
used: 345.48 GiB (80.1%) fs: btrfs dev: /dev/nvme1n1p1 maj-min: 259:6
ID-4: /var/tmp raw-size: 431.26 GiB size: 431.26 GiB (100.00%)
used: 345.48 GiB (80.1%) fs: btrfs dev: /dev/nvme1n1p1 maj-min: 259:6
Swap:
Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default)
ID-1: swap-1 type: partition size: 34.5 GiB used: 0 KiB (0.0%)
priority: -2 dev: /dev/nvme1n1p2 maj-min: 259:7
ID-2: swap-2 type: zram size: 31.36 GiB used: 4.5 MiB (0.0%)
priority: 100 dev: /dev/zram0
Sensors:
System Temperatures: cpu: N/A mobo: N/A gpu: nvidia temp: 51 C
Fan Speeds (RPM): N/A gpu: nvidia fan: 4%
Info:
Processes: 319 Uptime: 58m wakeups: 0 Memory: 31.36 GiB
used: 3.49 GiB (11.1%) Init: systemd v: 250 tool: systemctl Compilers:
gcc: 11.1.0 Packages: pacman: 1831 lib: 455 Shell: fish v: 3.3.1
default: Bash v: 5.1.16 running-in: alacritty inxi: 3.3.12