Public bug reported:
Binary package hint: linux-source-2.6.20
After updating to kernel 2.6.20-16.28 the boot process hangs, apparently
while starting the X server. Usually the system hangs with a black
screen at the point it should display the GDM (login) screen. Less
frequently a frozen X shaped cursor is visible in the center of the
black screen. The keyboard is inactive: 'caps lock' or 'num lock' do not
work. The HD led blinks every 2 seconds. A hardware reset is required.
The problem occurs with both 'nvidia-glx' and 'nv' drivers (standard
install from Ubuntu repositories).
The system works fine with the previous 2.6.20-15 kernel.
Otherwise, I was able to boot kernel 2.6.20-16.28 in recovery mode and
and successfully start the X server (startx) from the command line. That
gave me a desktop in root mode. I manually started GDM and restarted the
X server (ctrl+alt+back) and that gave me my usual GDM login screen,
from which I was able to login to my personal account. After an initial
error message saying 'failed to initialize HAL' the system was quite
functional, including Beryl. Although /dev/sda and /dev/sdb were changed
to /dev/hde/ and /dev/hdg/ I could access all partitions, including NTFS
read/write. The only problem was that I could not mount neither my cdrom
nor my USB pendrive. Trying to access the cdrom from Nautilus gave an
error message saying '/dev/sdc0 does not exist'.
** Affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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X server hangs at boot after latest kernel(2.6.20-16.28) update
https://bugs.launchpad.net/bugs/117621
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