Question Nvidia FX 1800 only gives signal from one DP port and one HDMI port when running Linux ?

[peoplefreeman]

I have an HP Z800 Workstation with Windows 10 installed and one Nvidia FX 1800 card. It could use all two DP ports and one HDMI port to work with three monitors. After I switched to Linux Kubuntu, it only works with with two monitors. If I enable all three monitors in display config, it shows outputs could not be saved due to error. I can only enable any two of them. Kubuntu version is 22.04 Nvidia driver version is 340. RAM 96 GIB

Thanks

lshw -short

/0/100/3/0 display G94GL [Quadro FX 1800]
/0/100/7/0 display GT200GL [Tesla C1060 / M1060]

ls -R /lib/modules/$(uname -r)/kernel/ | grep video

video
video.ko
vboxvideo
/lib/modules/6.8.0-40-generic/kernel/drivers/gpu/drm/vboxvideo:
vboxvideo.ko
videobuf2
/lib/modules/6.8.0-40-generic/kernel/drivers/media/common/videobuf2:
videobuf2-common.ko
videobuf2-dma-contig.ko
videobuf2-dma-sg.ko
videobuf2-dvb.ko
videobuf2-memops.ko
videobuf2-v4l2.ko
videobuf2-vmalloc.ko
video-i2c.ko
rc-flyvideo.ko
rc-videomate-m1f.ko
rc-videomate-s350.ko
rc-videomate-tv-pvr.ko
rc-videostrong-kii-pro.ko
uvcvideo.ko
videodev.ko
video
/lib/modules/6.8.0-40-generic/kernel/drivers/staging/most/video:
most_video.ko
/lib/modules/6.8.0-40-generic/kernel/drivers/video:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/backlight:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/aty:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/core:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/kyro:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/matrox:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/mb862xx:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/nvidia:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/riva:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/savage:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/sis:
/lib/modules/6.8.0-40-generic/kernel/drivers/video/fbdev/via: