I don't know, which resolution your panel needs. It might be possible to chose the right framebuffer mode. Try this
# hwinfo --framebuffer
Use the appropriate mode hexnumber (16bit mode recommended) as vga boot parameter.
Example:
Mode 0x0317: 1024x768 (+2048), 16 bits
--> vga=0x317
To be honest:
It's unlikely this ever been fixed. Nobody is still working on the sis driver upstream, the SiS company is no longer active in this area, and the driver is no
longer building against the latest Xserver.
I don't know, which resolution your panel needs. It might be possible to chose the right framebuffer mode. Try this
# hwinfo --framebuffer
Use the appropriate mode hexnumber (16bit mode recommended) as vga boot parameter.
Example:
Mode 0x0317: 1024x768 (+2048), 16 bits
--> vga=0x317
To be honest:
It's unlikely this ever been fixed. Nobody is still working on the sis driver upstream, the SiS company is no longer active in this area, and the driver is no
longer building against the latest Xserver.