Public bug reported:
This bug may concern xsplash or linux (not sure).
Before upgrading from Ubuntu 9.10 to 10.04, I had a vga=893 argument on
the kernel command line in each grub entry. It was working perfectly, it
made Ubuntu booting using 1920x1200x32 video mode, wich is the native
video mode of my screen.
After upgrading to 10.04, I started to get "unknown video mode 31C" at boot,
with a prompt asking if I would prefer choosing another mode or continuing
boot. Ubuntu 10.04 install replaced vga=893 by vga=796 (31C in hex). Whatever
VESA mode I choosed, all I get before the login screen was visual arifacts.
Only pure VGA mode worked.
This doesn' affect only boot screen, it does affect the Ctrl+Alt+F1~6 terminals.
For now I'm using mode F00 that give a low-res logo at boot and a 80cols
x 25lines terminals. It works.
More about visual artifacts :
- 32bits depth modes were the most damaged : only a wall of white pixels on
the first top-10% of the screen and a wall of pixels having the logo background
color on the bottom-25% of the screen
- 16 & 8bits depth modes were giving a repeated fuzzy and stretched ghost of
-the boot screen. Text lines are not readable. So are the terms.
I attached my current dmesg (boot with F00 mode, OK), and further dmesg will
follow (with VESA modes, KO).
I didn't attached photos of my screen to avoid having a heavy repport, but I
you ask I'll do it.
** Affects: ubuntu
Importance: Undecided
Status: New
--
No VESA mode working at boot with lucid amd64
https://bugs.launchpad.net/bugs/574041
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
