How to make openchrome driver work with Antix-19

I have a laptop with Via electronics and a Via Chrome graphics chip. It used the openchrome driver in AntiX-17 and -18 without problems. When installing AntiX-19, I had to use safe mode to get the installation medium to boot to a graphical screen. During the installation, I noticed some ghost images on the screen. The installed version has ghosts too, a lot of them, especially when the cpu is busy. It uses the vesa driver, which seems not to work very well on this video chip.

I have tried to configure it for openchrome without success. The openchrome driver loads but can't open the framebuffer.
Code:[ 68.651] (--) CHROME(0): Mapping the frame buffer at address 0xF0000000 with size 131072 KB.
[ 68.651] (EE) CHROME(0): Unable to map the frame buffer.
Error: Invalid argument (22)
[ 68.651] (II) CHROME(0): Exiting viaMapMMIO.
[ 68.651] (II) CHROME(0): VIAFreeRec
[ 68.651] (II) CHROME(0): VIAFreeScreen
[ 68.651] (II) CHROME(0): VIAFreeRec
[ 68.651] (II) UnloadModule: "openchrome"I then tried the modesetting driver, but got a different error:
Code:[ 885.581] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 885.581] (II) VESA: driver for VESA chipsets: vesa
[ 885.581] (EE) open /dev/dri/card0: No such file or directory
[ 885.581] (WW) Falling back to old probe method for modesetting
[ 885.581] (EE) open /dev/dri/card0: No such file or directory
[ 885.581] (EE) Screen 0 deleted because of no matching config section.
[ 885.581] (II) UnloadModule: "modesetting"What configuration options do I need to use to get one of these to work? Having to use vesa is very tiring for my eyes.