fltest works but no image / freezes some monitors

[thalesdeluca]

Today I've bought this USB to VGA adapter that has your logic/driver imbued within. Linux user here, especifically Pop-OS 20.04. I installed the driver and fltest works, with the following error on fltest_arm

/opt/hi3798/arm-hisiv200-linux/bin/arm-hisiv200-linux-gnueabi-gcc main.c -Xlinker -static -static-libgcc -o fltest_arm
make: /opt/hi3798/arm-hisiv200-linux/bin/arm-hisiv200-linux-gnueabi-gcc: Command not found
make: *** [Makefile:9: fltest_arm] Error 127

but fltest itself build and works. When I connect some monitor and run the script, it gives the following:

$ sudo ./fltest

usage: ./fltest mem_type [[width] [height]]
mem_type is 0..3
eg1: to test with SURFACE_TYPE_VIRTUAL_FRAGMENTED_VOLATILE, type
./fltest 0
eg2: to test without SURFACE_TYPE_VIRTUAL_FRAGMENTED_PERSISTENT, type
./fltest 1
eg3: to test 1920x1080 with SURFACE_TYPE_VIRTUAL_FRAGMENTED_PERSISTENT, type
./fltest 1 1920 1080

So I guess its recognizing the connection with the monitor, but I cant get any image. I've tried in 2 monitors, one FullHD(1920x1080) and another HD(1360x760).

Does this driver work on linux kernels above 3? PopOS 20.04 Kernel actually uses version 5