yeah did that thanks, and it is using 4k monitor in 1080 mode. And it doesn’t work on a 1080 monitor either (same error of freezing cursor). Note that is nothing to do with the resolution.
root@starfive:~# modetest -M starfive -c
Connectors:
id encoder status name size (mm) modes encoders
116 115 connected HDMI-A-1 630x360 13 115
modes:
index name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot
#0 3840x2160 30.00 3840 4016 4104 4400 2160 2168 2178 2250 297000 flags: phsync, pvsync; type: driver
#1 3840x2160 29.97 3840 4016 4104 4400 2160 2168 2178 2250 296703 flags: phsync, pvsync; type: driver
#2 1920x1080 60.00 1920 2008 2052 2200 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: driver
#3 1920x1080 59.94 1920 2008 2052 2200 1080 1084 1089 1125 148352 flags: phsync, pvsync; type: driver
#4 1920x1080 50.00 1920 2448 2492 2640 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: driver
#5 1280x720 60.00 1280 1390 1430 1650 720 725 730 750 74250 flags: phsync, pvsync; type: driver
#6 1280x720 59.94 1280 1390 1430 1650 720 725 730 750 74176 flags: phsync, pvsync; type: driver
#7 1280x720 50.00 1280 1720 1760 1980 720 725 730 750 74250 flags: phsync, pvsync; type: driver
#8 720x576 50.00 720 732 796 864 576 581 586 625 27000 flags: nhsync, nvsync; type: driver
#9 720x480 60.00 720 736 798 858 480 489 495 525 27027 flags: nhsync, nvsync; type: driver
#10 720x480 59.94 720 736 798 858 480 489 495 525 27000 flags: nhsync, nvsync; type: driver
#11 640x480 60.00 640 656 752 800 480 490 492 525 25200 flags: nhsync, nvsync; type: driver
#12 640x480 59.94 640 656 752 800 480 490 492 525 25175 flags: nhsync, nvsync; type: driver
props:
1 EDID:
flags: immutable blob
blobs:
value:
00ffffffffffff004c2d1710424a5843
261f0103803f24782ac8b5ad50449e25
0f5054bfef80714f810081c081809500
a9c0b300010108e80030f2705a80b058
8a0078682100001e000000fd00324b1e
873c000a202020202020000000fc004c
5532385235350a2020202020000000ff
0048345a523930323232330a20200196
020335f04961120313041f10605f2309
070783010000e305c0006b030c002000
b83c2000200167d85dc401788003e20f
81e3060501023a801871382d40582c45
0078682100001e023a80d072382d4010
2c458078682100001e04740030f2705a
80b0588a0078682100001e565e00a0a0
a029503020350078682100001a000049
2 DPMS:
flags: enum
enums: On=0 Standby=1 Suspend=2 Off=3
value: 0
5 link-status:
flags: enum
enums: Good=0 Bad=1
value: 0
6 non-desktop:
flags: immutable range
values: 0 1
value: 0
4 TILE:
flags: immutable blob
blobs:
value: