I am using a fresh install of Ubuntu 22.04 and I have the latest NVidia drivers installed. When I set display mode to GPU only in the bios I can have a refresh rate of 240 Hz. I want to set it to hybrid mode so that I can easily switch between "Power Saving" mode (Intel iGPU only) and "Performance Mode" (Nvidia GPU only for gaming).
I can do that using Nvidia prime which is automatically installed with the nvidia drivers. The "On Demand" mode works without any problems, however after enabling the "Performance Mode" (which should disable the intel iGPU) and restarting the refresh rate is stuck at 60 Hz in Gnome Control Center (weirdly there are two 60 Hz options).
I also noticed in the minecraft video settings that the available resolutions seem to match with the capacities of the intel iGPU :
- 2560x1440@60
- 2048x1152@60
- 1920x1440@60
- 1920x1200@60
- 1920x1080@60
- ...
- 1440x810@120
But ingame (F3) it says Display : "Nvidia GeForce RTX 4060 Laptop GPU/PCIe/SSE2..." so it should be using the dGPU and not the iGPU
More info
In BIOS dGPU-only mode the only available display resolutions in minecraft are 2560x1440@240 and 2560x1440@60.
Xrandr -q output in [BIOS Hybrid mode with Nvidia Prime Performance mode enabled] after a reboot
$ xrandr -q
Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
2560x1440 60.00*+ 60.00
1920x1440 60.00
1856x1392 60.00
1792x1344 60.00
2048x1152 60.00
1920x1200 60.00
1920x1080 60.00
1600x1200 60.00
1680x1050 60.00
1400x1050 60.00
1600x900 60.00
1280x1024 60.00
1400x900 60.00
1280x960 60.00
1440x810 60.00
1368x768 60.00
1280x800 60.00
1280x720 60.00
1024x768 60.00
960x720 60.00
928x696 60.00
896x672 60.00
1024x576 60.00
960x600 60.00
960x540 60.00
800x600 60.00
840x525 60.00
864x486 60.00
700x525 60.00
800x450 60.00
640x512 60.00
700x450 60.00
640x480 60.00
720x405 60.00
684x384 60.00
640x360 60.00
512x384 60.00
512x288 60.00
480x270 60.00
400x300 60.00
432x243 60.00
320x240 60.00
360x202 60.00
320x180 60.00
DP-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
DP-1-2 disconnected (normal left inverted right x axis y axis)
HDMI-1-2 disconnected (normal left inverted right x axis y axis)
Xrandr -q output in [BIOS dGPU only mode]
Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-4 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 340mm x 190mm
2560x1440 60.00 + 240.00*
If I understand correctly the xrandr -q output should be the same when using BIOS dGPU-only mode and when using BIOS Hybrid Mode with Prime Performance Mode enabled ?
How to have 240 Hz enabled in BIOS Hybrid mode with Nvidia Prime Performance Mode ?
Should I use Bumblebee instead ?
