On Sun, Oct 30, 2011 at 12:25:08PM -0000, G H wrote:
> I'm using Ubuntu on my notebook. My disk contains four partitions: two
> windows partitions, a /boot partition for ubuntu, and an (fully
> encrypted) partition containing the rest of my ubuntu system. The
> encryption was set up using the alternate install CD of Ubuntu 9.04 (so
> it's LUKS).
> Trying to boot with any kernel newer than 2.6.31-22 fails, because the
> splash screen (where I am supposed to enter my disk
> encryption/decryption password) is not displayed. This also holds for
> booting in recovery mode. Typing the password blindly (without prompt)
> does not yield any result.
2.6.31 is a rather old kernel - predating Ubuntu 10.04 LTS. Using the
2.6.31 kernel with the Ubuntu 11.10 userspace, you get the splash screen
with no problems?
How does the splash screen look? From the details in your bug report, it
looks like it should be a text-only splash screen (because your /proc/fb is
empty).
The lspci info shows:
01:00.0 VGA compatible controller [0300]: nVidia Corporation G98 [GeForce 9300M
GS] [10de:06e9] (rev a1) (prog-if 00 [VGA controller])
Subsystem: CLEVO/KAPOK Computer Device [1558:0802]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 16 bytes
Interrupt: pin A routed to IRQ 9
Region 0: Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at d0000000 (64-bit, non-prefetchable) [size=32M]
Region 5: I/O ports at 9000 [size=128]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel modules: nvidiafb
Despite this showing an 'nvidiafb' association, no framebuffer driver
appears to be loaded when you use 2.6.31.
> During the boot process with new kernels, the screen flashes one time
> (as if the kernel was trying to change the display mode/screen
> resolution), but then falls back to text mode display. I'm not sure if
> this has got something to do with the problem, but since I can't rule
> that out, I included the info.
Especially since you say this happens even in rescue mode, it seems likely
that this is an incompatibility between your video card and the nouveau
driver used by default in newer kernels. I'll reassign this bug to the
kernel package.
You could test whether booting without nouveau works by adding a 'blacklist
nouveau' line to /etc/modprobe.d/blacklist-framebuffer.conf.
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Debian Developer to set it on, and I can move the world.
Ubuntu Developer http://www.debian.org/
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** Package changed: plymouth (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/883820
Title:
splash screen doesn't display on kernels newer than 2.6.31-22 => can
not enter disk decryption password
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