[Bug 941931] GRUB2 graphical menu is extremely slow

http://bugzilla.suse.com/show_bug.cgi?id=941931 http://bugzilla.suse.com/show_bug.cgi?id=941931#c10 --- Comment #10 from Michael Chang --- Looks to me that the video ram is too small to enable page flipping by swapping poiners of on-screen and off-screen buffers in video memory to update the screen quicky [1]. Some relevant log outputs VBE info: total memory: 16384 KB * 0x1d4 2560 x 1440 x 32 (10240) Direct Color, mask: 8/8/8/0 pos: 16/8/0/0 page_size = pitch * height = 10240 * 1440 = 14745600 = 14745.6 KiB vram = 16384 KB < 2 * page_size = 2 * 14745.6 KiB = 29491.2 KiB Without page flipping, the screen update would be way much slower by bit-blitting from system memory to video memory and no longer a simple pointer switch. [1] http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/video/i386/pc/vbe.c... -- You are receiving this mail because: You are on the CC list for the bug.