[Bug 1048261] Re: Blank screen during system startup with Precise/Nouveau
janrathmann at t-online.de
Mon Sep 10 13:40:18 UTC 2012
Here is the dmesg output of such a boot.
The graphics board seems to have a TV out indeed, but it has never been
used. Only the TFT flatscreen is connected via VGA out.
If the monitor is turned on only at the end of the boot, it would
explain of course the observed behaviour that the monitor receives no
input signal during boot.
** Attachment added: "dmesg of booting with GRUB_GFXPAYLOAD_LINUX=text"
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Blank screen during system startup with Precise/Nouveau
Status in “plymouth” package in Ubuntu:
if I boot the Precise installation on the PC this report has been sent
from (using Nouveau drivers on a Geforce 2 MX card), the screen stays
blank ("No Signal") during the boot process:
- The grub menu is displayed as usual (allthough in low resolution of 1024x768, while the display's native resolution is 1280x1024)
- Then a few seconds after the text of the grub menu disappeared, the screen goes blank (and turns of a few seconds later due to lack of input signal). In this phase usually the Plymouth boot logo should appear.
- When the display manager is loaded, the screen finally turns back on again/receives input again.
This happens regardless if the system is upgraded or freshly
It is also a regression from Lucid, where the boot process worked
without such problems on this machine (also with Nouveau drivers).
If I set GRUB_GFXPAYLOAD_LINUX=text in /etc/default/grub, I get the
text-only boot logo with correct screen resolution on startup and
monitor doesn't power off in this case.
If I boot using "nomodeset", the graphical boot logo is displayed
correctly but the screen resolution on the desktop is limited to
1024x768 (which is not acceptable).
DistroRelease: Ubuntu 12.04
Package: plymouth 0.8.2-2ubuntu30
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic-pae 3.2.27
Uname: Linux 3.2.0-30-generic-pae i686
Date: Sun Sep 9 16:34:19 2012
MachineType: ECS K7S5A
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-30-generic-pae root=UUID=979d6337-c3a8-4daa-9a97-4cd021dcb572 ro quiet splash vt.handoff=7
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-30-generic-pae root=UUID=979d6337-c3a8-4daa-9a97-4cd021dcb572 ro quiet splash vt.handoff=7
UpgradeStatus: Upgraded to precise on 2012-09-09 (0 days ago)
dmi.bios.vendor: American Megatrends Inc.
dmi.chassis.version: Version 1.00
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