NOTE: This happens to BOTH monitors when the external monitor is plugged in. The external monitor is ran by NVIDIA while the laptop screen by AMD. It is NOT a compositor issue like picom. I'm on i3.
#External (HDMI) monitor causes mouse stutter and screen freeze for a split second.
vivid dagger
[ 9.184] Current Operating System: Linux totalrelinquishing 6.19.10-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 26 Mar 2026 19:20:28 +0000 x86_64
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 9.194] (WW) The directory "/usr/share/fonts/misc" does not exist.
[ 9.195] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[ 9.195] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[ 9.224] (WW) Warning, couldn't open module ati
[ 9.224] (EE) Failed to load module "ati" (module does not exist, 0)
[ 9.227] (WW) Warning, couldn't open module fbdev
[ 9.227] (EE) Failed to load module "fbdev" (module does not exist, 0)
[ 10.304] (II) modeset(0): [DRI2] Setup complete
[ 10.304] (II) modeset(0): [DRI2] DRI driver: radeonsi
[ 10.304] (II) modeset(0): [DRI2] VDPAU driver: radeonsi
[ 10.305] (II) Initializing extension MIT-SCREEN-SAVER
[ 10.305] (II) Initializing extension DRI3
[ 10.311] (II) GLX: Initialized DRI2 GL provider for screen 0
[ 10.312] (II) Initializing extension XFree86-DRI
[ 10.312] (II) Initializing extension DRI2
[ 10.789] (II) modeset(G0): using drv /dev/dri/card0
[ 10.790] (II) modeset(G0): Creating default Display subsection in Screen section
[ 10.790] (==) modeset(G0): Depth 24, (==) framebuffer bpp 32
[ 10.790] (II) Applying OutputClass "nvidia" options to /dev/dri/card0
[ 10.790] (==) modeset(G0): RGB weight 888
[ 10.790] (==) modeset(G0): Default visual is TrueColor
[ 10.853] (II) modeset(G0): glamor: Using OpenGL 3.1 context.
[ 10.853] (II) modeset(G0): glamor X acceleration enabled on NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2
[ 10.853] (II) modeset(G0): glamor initialized
[ 10.854] (II) modeset(G0): Output DP-1-9 has no monitor section
[ 10.945] (II) modeset(G0): Output HDMI-1-1 has no monitor section
[ 11.037] (--) modeset(G0): HDMI max TMDS frequency 335000KHz
[ 11.037] (==) modeset(G0): Using gamma correction (1.0, 1.0, 1.0)
[ 11.037] (**) modeset(G0): Display dimensions: (340, 190) mm
[ 11.037] (**) modeset(G0): DPI set to (76, 102)
[ 11.101] (==) modeset(G0): Backing store enabled
[ 11.101] (==) modeset(G0): Silken mouse enabled
[ 11.101] (II) modeset(G0): Initializing kms color map for depth 24, 8 bpc.
[ 11.101] (==) modeset(G0): DPMS enabled
[ 11.101] (WW) modeset(G0): Option "AllowEmptyInitialConfiguration" is not used
[ 11.101] (II) modeset(G0): [DRI2] Setup complete
[ 11.101] (II) modeset(G0): [DRI2] DRI driver: nouveau
[ 11.101] (II) modeset(G0): [DRI2] VDPAU driver: nouveau
[ 11.143] (EE) modeset(G0): Failed to create pixmap
[anatta@totalrelinquishing ~]$ ```Providers: number : 2
Provider 0: id: 0x4b cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 9 associated providers: 1 name:modesetting
Provider 1: id: 0x27d cap: 0x2, Sink Output crtcs: 4 outputs: 3 associated providers: 1 name:NVIDIA-G0
[anatta@totalrelinquishing ~]$ ```Graphics:
Device-1: NVIDIA GA107M [GeForce RTX 3050 Mobile] vendor: ASUSTeK
driver: nvidia v: 595.58.03 arch: Ampere pcie: speed: 5 GT/s lanes: 8 ports:
active: none off: HDMI-A-1 empty: DP-9 bus-ID: 01:00.0 chip-ID: 10de:25a2
Device-2: Advanced Micro Devices [AMD/ATI] Rembrandt [Radeon 680M]
vendor: ASUSTeK driver: amdgpu v: kernel arch: RDNA-2 pcie: speed: 16 GT/s
lanes: 16 ports: active: eDP-1 empty: DP-1, DP-2, DP-3, DP-4, DP-5, DP-6,
DP-7, DP-8, Writeback-1 bus-ID: 05:00.0 chip-ID: 1002:1681 temp: 65.0 C
Device-3: Shine-optics USB2.0 HD UVC WebCam driver: uvcvideo type: USB
rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 1-4:2 chip-ID: 3277:0029
Display: x11 server: X.Org v: 21.1.21 with: Xwayland v: 24.1.9
compositor: Picom v: 13 driver: X: loaded: modesetting,nvidia unloaded: vesa
alternate: fbdev,nouveau,nv dri: radeonsi
gpu: amdgpu,nv_platform,nvidia,nvidia-nvswitch display-ID: :0 screens: 1
Screen-1: 0 s-res: 3840x1080 s-dpi: 96
Monitor-1: HDMI-A-1 mapped: HDMI-1-0 note: disabled pos: right
model: Acer EK240Y P6 res: N/A dpi: 92 diag: 604mm (23.8")
Monitor-2: eDP-1 pos: primary,left model: ChiMei InnoLux 0x1521
res: 1920x1080 hz: 144 dpi: 142 diag: 394mm (15.5")
API: EGL v: 1.5 platforms: device: 0 drv: nvidia device: 2 drv: radeonsi
device: 3 drv: swrast gbm: drv: nvidia surfaceless: drv: nvidia x11:
drv: radeonsi inactive: wayland,device-1
API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: amd mesa v: 26.0.4-arch1.1
glx-v: 1.4 direct-render: yes renderer: AMD Radeon 660M (radeonsi rembrandt
ACO DRM 3.64 6.19.11-arch1-1) device-ID: 1002:1681
API: Vulkan v: 1.4.341 surfaces: N/A device: 0 type: integrated-gpu
driver: mesa radv device-ID: 1002:1681 device: 1 type: discrete-gpu
driver: nvidia device-ID: 10de:25a2
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor gpu: nvidia-settings,nvidia-smi
wl: wayland-info x11: xdriinfo, xdpyinfo, xprop, xrandr
[anatta@totalrelinquishing ~]$ ```This is how the mouse stutters. When I'm moving it around. it just stops, and sometimes if some animating task is being done on the screen, it freezes too, for a split second, and then it resolves. This sometimes happens multiple times in a few seconds or multiple times in a few minutes.
Or it happens when I'm moving from one monitor to the other one.
next venture
Hello
@vivid dagger your dgpu is bound to modesetting
not Nvidia Xorg
"(EE) modeset(G0): Failed to create pixmap "
create the config, /etc/modprobe.d/blacklist-nouveau.conf
and add
blacklist nouveau
options nouveau modeset=0
Then sudo mkinitcpio -P
and reboot
create /etc/modprobe.d/nvidia.conf or edit if its already there
and add: options nvidia-drm modeset=1
also download sudo pacman -S nvidia nvidia-utils nvidia-prime
create a xorg outputclass file
/etc/X11/xorg.conf.d/10-nvidia-drm-outputclass.conf
and inside it add:
Section "OutputClass"
Identifier "nvidia"
MatchDriver "nvidia-drm"
Driver "nvidia"
Option "AllowEmptyInitialConfiguration"
Option "PrimaryGPU" "yes"
EndSection
then reboot
after this you can
grep -i nvidia /var/log/Xorg.0.log
to verify
the output must be Using driver 'nvidia' for NVIDIA-G0
not using driver modesetting
vivid dagger
<@1088105581333729280> your dgpu is bound to modesetting
hello. where can I read more about this
vivid dagger
What part exactly. And how does this relate to the problem. I'm sorry but as a beginner. I have a really hard time connecting the dots. @next venture
next venture
alright
so bassically your nvidia gpu, which is your Dedicated gpu, the one supposed to be connected to your monitor is being started by modesetting
when it is supposed to be started by the NVIDIA Drivers
which causes mouse stuttering, e-monitor issues, nouveau drivers being used
the Arch wiki has stated: NVIDIA → “DRM kernel mode setting”
vivid dagger
so bassically your nvidia gpu, which is your Dedicated gpu, the one supposed to ...
So modesetting is kernel.
next venture
which explains why options nvidia-drm modeset=1 is needed
vivid dagger
I thought all this time the problem was unfixable until I connect HDMI to USB
next venture
no mode setting is not the kernel
it is the Xorg video drivers
that use the KMS interface (a.k.a kernel mode settiing interface) which just handles the display res and refresh rate
vivid dagger
right.
next venture
modesetting driver is a Xorg Drivers that talks to this KMS interface when the NVIDIIA drivers are not being used
Nvidia has its own xorg driver that replaces the modesetting
for your nvidia gpu
vivid dagger
will things change that if the hardware of my asus tuf is so that hdmi is directly connected to nvidia
next venture
Yes
your laptop is a hybrid gpu
which has an igpu and dgpu
so the internal screen is connected to your igpu whilst the external screen is connected to your dedicated gpu
vivid dagger
let me try that in a second
next venture
if you want to use your powerfull nvidia gpu for display output
vivid dagger
and get back to you
next venture
you MUST use the HDMI port
vivid dagger
and you please hold for a second
next venture
alright
vivid dagger
$ grep -i nvidia /var/log/Xorg.0.log
grep: /var/log/Xorg.0.log: binary file matches
@next venture
vivid dagger
[ 10.492] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event18)
[ 10.493] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event19)
[ 10.493] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event20)
[ 10.494] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event21)
[ 10.790] (II) Applying OutputClass "nvidia" options to /dev/dri/card0
[ 10.853] (II) modeset(G0): glamor X acceleration enabled on NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2```@next venture do i need to reboot to apply the changes
vivid dagger
okay
i think that worked?
[ 10.492] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event18)
[ 10.493] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event19)
[ 10.493] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event20)
[ 10.494] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event21)
[ 10.790] (II) Applying OutputClass "nvidia" options to /dev/dri/card0
[ 10.853] (II) modeset(G0): glamor X acceleration enabled on NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2
[anatta@totalrelinquishing ~]$ ```because the only monitor working now is the external one
internal isnt working
its completely switched off
vivid dagger
mm the nvidia drivers arent loaded
for learning purposes. what were you expecting to happen and what did you see to recognize that it didnt go the right way?
next venture
that means xorg is now using the nvidia driver
vivid dagger
that means xorg is now using the nvidia driver
can i manually use xrandr to connect the internal screen now?
next venture
for learning purposes. what were you expecting to happen and what did you see to...
when it loads it prints a line Using driver 'nvidia' for NVIDIA-G0
the log shows modeset(G0): glamor X acceleration enabled on NVIDIA
next venture
can i manually use xrandr to connect the internal screen now?
no
as the screen didnt disconnect
vivid dagger
the log shows modeset(G0): glamor X acceleration enabled on NVIDIA
isnt that present in the second log after reboot too?
next venture
xorg just didnt initialize your igpu
vivid dagger
xorg just didnt initialize your igpu
so is it going to stay that way?
if i want no stuttering?
next venture
no its not gonna stay that way
just a misconfig
edit /etc/X11/xorg.conf.d/10-nvidia-drm-outputclass.conf
and remove Option "PrimaryGPU" "yes"
and reboot
vivid dagger
but before that
[ 10.853] (II) modeset(G0): glamor X acceleration enabled on NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2
if this line caused the thing
@next venture
next venture
mhm
next venture
srry i didnt put much context to the statement
i was wrong on the fact of nvidia drivers working
as i hadnt examined your second log i was talking about the fact of only your external monitor working
however as your second log shows
its still using modesetting fallback
so thanks for pnting it out
so driver didnt load but monitor did get detected
Find the line: Option "PrimaryGPU" "yes"
Delete it and save, afterwards you can go to:
/etc/modprobe.d/blacklist-nouveau.conf
and add
blacklist nouveau
options nouveau modeset=0
which stops the nouveau drivers from loading
make sure to save the files.
go to /etc/modprobe.d/nvidia.conf
add options nvidia-drm modeset=1
save the file
in terminal you need to run sudo mkinitcpio -P
completely reboot system
do grep -aEi "Using driver" /var/log/Xorg.0.log
and share your logs
next venture
Find the line: Option "PrimaryGPU" "yes"
Delete it and save, afterwards you can...
@vivid dagger
vivid dagger
let me do that real quick
just liek that?
shouldn't we be doing optiosn nvidia-drm modeset=0?
next venture
Find the line: Option "PrimaryGPU" "yes"
Delete it and save, afterwards you can...
no it shouldnt
modeset=0 is only for nouveau to disable it.
/etc/modprobe.d/blacklist-nouveau.conf
blacklist nouveau
options nouveau modeset=0
/etc/modprobe.d/nvidia.conf
options nvidia-drm modeset=1
@vivid dagger i have to go for now.... someone will be here shortly if the forum gains attention, you may have to wait
vivid dagger
<@1088105581333729280> i have to go for now.... someone will be here shortly if ...
alright. thank you so much for your help
cobalt lichenBOT
gehrman1ht received a thank you cookie!
vivid dagger
hy @next venture
so $ grep -aEi "Using driver" /var/log/Xorg.0.log
[anatta@totalrelinquishing ~]$
no logs when i do this grep command
[ 10.492] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event18)
[ 10.493] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event19)
[ 10.493] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event20)
[ 10.494] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event21)
[ 10.790] (II) Applying OutputClass "nvidia" options to /dev/dri/card0
[ 10.853] (II) modeset(G0): glamor X acceleration enabled on NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2
[anatta@totalrelinquishing ~]$ ```but this shows
vivid dagger
is everything alright
nope
i think I'll need to get a usb if my laptop supports thunderbolt
but other than that