Question Nvidia FX 1800 only had signal from one DP port and one HDMI port

[peoplefreeman]

I have a Z800 used install windows 10 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 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: