Bug#754739: grub2: no grub menu and system does not boot if connected only with displayport

[Georg Lipps]

I do have a similar problem with display port. Grub set-up is correct 
since the error is only seen when using DP1.2 (and not DP1.1)

See also: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1853735

Regards



On Sun, 13 Jul 2014 14:54:48 -0400 js <jshaio at yahoo.com> wrote:

 > Package: grub2
 > Version: 2.00-22
 > Severity: normal
 >
 > Dear Maintainer,
 >
 >
 > 
=============================================================================================
 >
 > When my system is connected to a monitor with both a DVI cable and a 
dislayport cable,
 > the system boots fine and after the BIOS screen I see the grub menu, 
can select the linux
 > kernel to use and it boots without issue.
 >
 > However, if the system is connected to the monitor with only the 
displayport cable but no DVI,
 > I still see the system BIOS screen after powering up, but then the 
grub menu no longer appears
 > and the system does not boot. I verified this by checking 
/var/log/{syslog,messages,boot} after
 > rebooting with the DVI cable inserted.
 >
 > If the system is connected to the monitor using only an HDMI cable, 
then again I see the BIOS
 > screens, the GRUB menu is not visible but the system does boot and I 
can login via ssh.
 >
 > It seems this issue is restricted to using a displayport cable and 
grub, as even the default
 > kernel in grub.cfg was not booted in this case, although it did boot 
when using only HDMI.
 >
 > [The system boots into a console without starting X and the console 
is not visible if the
 > monitor input is either displayport or HDMI.]
 >
 > Here is the /etc/default/grub contents even though grub.cfg is 
attached as well
 >
 > # If you change this file, run 'update-grub' afterwards to update
 > # /boot/grub/grub.cfg.
 > # For full documentation of the options in this file, see:
 > # info -f grub -n 'Simple configuration'
 >
 > GRUB_DEFAULT=0
 >
 > GRUB_DEFAULT="Advanced options for Debian GNU/Linux>Debian GNU/Linux, 
with Linux 3.2.0-4-686-pae"
 > GRUB_TIMEOUT=11
 >
 > GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
 > GRUB_CMDLINE_LINUX_DEFAULT="quiet"
 > GRUB_CMDLINE_LINUX="splash nomodeset vga=normal loglevel=5"
 > GRUB_BACKGROUND=/boot/grub/splash_images/js-active.png
 >
 > GRUB_GFXMODE=1600x1200x16,1600x1200,800x600x16,800x600,640x480,auto
 > GRUB_GFXPAYLOAD_LINUX=text
 >
 > # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter 
to Linux
 > GRUB_DISABLE_LINUX_UUID=true
 >
 > 
=============================================================================================
 >
 >
 > -- Package-specific info:
 >
 > *********************** BEGIN /proc/mounts
 > /dev/sda1 / ext4 
rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered 0 0
 > /dev/sda3 /boot ext4 rw,relatime,user_xattr,barrier=1,data=ordered 0 0
 > /dev/sda2 /usr1 ext4 rw,relatime,user_xattr,barrier=1,data=ordered 0 0
 > /dev/sdb1 /usr2 ext4 rw,relatime,user_xattr,barrier=1,data=ordered 0 0