3.19.0-26-generic #28-Ubuntu T
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880 [Radeon HD 4200]
- Hercules ProphetView monitor
This is a server, with no x-windows or gui. There's no dual-boot, or anything like that.
On boot I get the grub screen, then some boot messages, and then right after the hard drive messages the monitor switches to "Signal Over Range!!"
Editing /etc/default/grub
and then doing a sudo update-grub
doesn't seem to have any effect.
Grub config below (with "normal" comments removed):
GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=false
GRUB_TIMEOUT=3
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="radeon.modeset=1"
GRUB_CMDLINE_LINUX=""
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
GRUB_TERMINAL=console
GRUB_GFXMODE=1024x768
#GRUB_DISABLE_LINUX_UUID=true
#GRUB_DISABLE_RECOVERY="true"
#GRUB_INIT_TUNE="480 440 1"
The radeon.modeset
is something new I tried this morning. It doesn't seem to have any effect.
vbeinfo
as referred to in the thread I mentioned may prove useful as well as gnu.org/software/grub/manual/html_node/gfxpayload.html which you could change to text which would seem fine on a server IMHO