Touchscreen not working - Xubuntu 25.10

I just installed Xubuntu 25.10 on my Acer 511 Spin Chromebook (which I reformatted and replaced the firmware using the MrChromebox/Chrultrabox utilities). Everything is working great, except the touchscreen, which is totally non-responsive.

Using the xinput command, it shows:

⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ Elan Touchpad                           	id=10	[slave  pointer  (2)]
⎜   ↳ Elan Touchscreen                        	id=11	[slave  pointer  (2)]
⎜   ↳ keyd virtual pointer                    	id=15	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=8	[slave  keyboard (3)]
    ↳ sof-glkrt5682max Headset Jack           	id=9	[slave  keyboard (3)]
    ↳ Intel Virtual Buttons                   	id=12	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=13	[slave  keyboard (3)]
    ↳ keyd virtual keyboard                   	id=14	[slave  keyboard (3)]l

list-props for the Elan Touchscreen shows:

Device 'Elan Touchscreen':
	Device Enabled (178):	1
	Coordinate Transformation Matrix (180):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Rotation Angle (290):	0.000000
	libinput Rotation Angle Default (291):	0.000000
	libinput Calibration Matrix (349):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Calibration Matrix Default (350):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Send Events Modes Available (292):	1, 0
	libinput Send Events Mode Enabled (293):	0, 0
	libinput Send Events Mode Enabled Default (294):	0, 0
	Device Node (295):	"/dev/input/event6"
	Device Product ID (296):	0, 0

Any help in getting it working would be greatly appreciated.

(I should also note that I am a total Linux newbie and only found these commands online, so please forgive anything obvious that I’ve missed!)