sddm with xorg vesa driver

[Serge Volkov]

Hello, Friends!

I use latest x11/sddm as a login manager. And I discovered strange 
behavior. If I use x11/nvidia-driver, then everything looks fine. See 
screenshot http://www.ulbsd.ru/devel/sddm2.png. But, If I use 
x11-drivers/xf86-video-vesa, then all text labels are not visible. See 
screenshot http://www.ulbsd.ru/devel/sddm1.png.
Does anyone know how to change this behavior?
I need to use an old graphics card with vesa driver.

-- 
Thanks,
Serge