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[Xen-users] How to Stop lightdm Display Manager and X.org X Server in UBUNTU 11.10 and Unload nouveau Kernel Module? (Xen VGA Passthrough)
Hi,
How do I stop lightdm display manager and X.org server in Ubuntu 11.10
and unload the nouveau vga driver?
I can certainly run "sudo killall lightdm" and of course lightdm and
X.org X server will be terminated successfully, but I cannot force
nouveau vga driver to unload at all. It always say nouveau module is
in use even if I use "sudo modprobe --force --remove nouveau".
I need to unload the following kernel modules for successful Xen VGA
passthrough.
rmmod nouveau
rmmod ttm
rmmod drm_kms_helper
rmmod drm
Please read Deactivating KMS and unloading Nouveau at http://nouveau.freedesktop.org/wiki/KernelModeSetting
***But setting "echo 0 > /sys/class/vtconsole/vtcon1/bind"
causes the display to hang and I can't do anything more at
all.***
I can also "sudo apt-get remove lightdm" but I still can't
get nouveau vga driver to unload!!!
I can't force nouveau,ttm,drm_kms_helper,drm kernel modules to unload. Help!!!
Also, if I add xen-pciback.hide=(01:00.0) to the module line in GRUB2, the display turns blank while booting and I can't do anything at all, because the monitor turns black during booting. Any ideas?
David Techer,
You are using Debian 6.0.2 while I am using Ubuntu 11.10!
See my difficulties?
There is no /etc/inittab in Ubuntu 11.10 and no runlevels 3,4,5 in Ubuntu 11.10.
Thank you very much.
Yours sincerely,
Teo En Ming (Zhang Enming)
On 21/03/2012 00:36, Casey DeLorme wrote:
Hello,
Supposedly both the board & CPU must have VT-d, the
E6300 does not:
If pciback was compiled into your kernel (not a module)
then you can add "xen-pciback.hide=(01:00.0)" to the module
line in your grub.cfg, substituting your lspci device names.
nVidia supposedly requires patches and only works in
Windows XP, there are a few Windows 7 success stories, but
they seem rare. Most people have success without patches
using AMD cards.
Best of luck.
~Casey DeLorme
On Tue, Mar 20, 2012 at 11:39 AM, Teo
En Ming (Zhang Enming) <singapore.mr.teo.en.ming@xxxxxxxxx>
wrote:
Dear David Techer and
others,
I thought Intel H61 chipset and MSI motherboards
officially don't support VT-x and VT-d? There is no VT-d
enabling option in MSI motherboard BIOS.
I want to test Xen VGA passthrough for Windows 8 Consumer
Preview 64-bit English HVM domU with my Intel DQ45CB
motherboard and Intel Pentium Dual Core E6300 2800 MHz.
By the way, I am using Linux kernel 3.3.0 Final. Should I
use PCIBACK or PCI-STUB? If I use pciback, what arguments
should I parse to the kernel command line in GRUB2? Please
point me to the documentation for kernel command line
arguments in the linux kernel source tree.
My graphics card: Palit NVIDIA Geforce 8400 GS PCI Express
x16 SGD$44
Thank you very much.
Yours sincerely,
Teo En Ming (Zhang Enming)
On 20/03/2012 23:17, David TECHER wrote:
You're welcome.
Keep in mind that if you are going to
upgrade BIOS for your motherboard, those
values for your card may changed.
I was in this situation last time BIOS
was upgraded.
It does mean that those values will
changed each time you upgrade your motherboad
BIOS but having thos values changed after a
BIOS upgrade could occur for a specific
upgrade.
Don't ask me why...I do not know.
So you will be well advised to heck
those values for each BIOS upgrade.
Moreover don't waste your time to test
VGA PassThrough for NVIDIA for Windows 7. For
Windows 7 use ATI.
I did my tests for playing with wine
1.4/1.5 on domU Ubuntu Lucid 10.04.4 PV HVM
(game like Crysis 2) and it rocks :)
My configuration:
Manufacturer: MSI / Product Name: H61MU-E35
(MS-7680)
Bios version: V10.11
Dear David Techer,
Thank you.
I think the following command is
sufficient.
dmesg | grep 01:00.0 | grep "pci.*mem"
Yours sincerely,
Teo En Ming (Zhang Enming)
On 20/03/2012 17:54, David TECHER wrote:
Hi Teo,
The 3 first lines with pattern
'pci.*mem' need to be returned
U need to use somethign
like
root@gemini:~# lspci |grep
VGA
02:00.0 VGA compatible controller:
nVidia Corporation Device 0ca2
(rev a2)
root@gemini:~# dmesg|grep 02:00.0
|grep ' pci [0-9].*mem'|head -n3
[ 0.174458] pci 0000:02:00.0:
reg 10: [mem
0xfb000000-0xfbffffff]
[ 0.174466] pci 0000:02:00.0:
reg 14: [mem 0xd0000000-0xdfffffff
64bit pref]
[ 0.174475] pci 0000:02:00.0:
reg 1c: [mem 0xee000000-0xefffffff
64bit pref]
Kind regards
Dear David Techer,
I have read through your article
on Xen VGA passthrough on http://www.davidgis.fr.
It appears that the following
command on your blog doesn't work.
dmesg | grep 01:00.0 | grep BAR
The above command shows nothing at
all. Is there an alternative
solution?
Thank you very much.
Yours sincerely,
Teo En Ming (Zhang Enming)
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