Bug#735424: Only blank screen after system-upgrade from wheezy to jessie

[Mgr. Peter Tuhársky]

Hi,

I have the same problem with HP Compaq nx9105. Wheezy worked well.  
After fresh install of Jessie, only black screen. From the X.org log  
it seems that none of the graphic drivers worked.

According to lspci, the video is NV17M Geforce4 420 Go 32M.

Is there something to do in order to make Jessie run on this machine?