Thanks to place your question about upgrading kernell BrighamKeys!And for answer Gnu and a big thanks for jxself. I followed the guide and now i have my kernell updated too :D I noticed that the image from grub is improved and now it is clear-cut. Before on old version my image grub or launching Trisquel (?) was blurred or smeared and i thougth it was normal on Trisquel. To my surprise it solved the issue!
Thanks very much!
