[mythtv-users] Mythbutu 11.04 -> 11.10 breaks X-server

R KANNAN rk111810 at gmail.com
Sun Jan 8 20:31:38 UTC 2012


I found out the issue is with LDM (Light Display Manager) used with Ubuntu
11.11. I could do the following and get X going..

sudo service lightdm stop # Stop LDM
sudo service gdm start # Start the old Graphics display manager

after renaming custom.conf file in /etc/gdm which had auto log-on enabled.

How do I make 'gdm' my default login display manager?

BTW, The graphics card information on my laptop is as below.

00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (primary) (rev 0c) (prog-if 00 [VGA
controller])
        Subsystem: Lenovo T61
        Flags: bus master, fast devsel, latency 0, IRQ 46
        Memory at f8100000 (64-bit, non-prefetchable) [size=1M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 1800 [size=8]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 3
        Kernel modules: intelfb, i915

00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated
Graphics Controller (secondary) (rev 0c)
        Subsystem: Lenovo T61
        Flags: bus master, fast devsel, latency 0
        Memory at f8200000 (64-bit, non-prefetchable) [size=1M]
        Capabilities: [d0] Power Management version 3

On Sat, Jan 7, 2012 at 7:01 PM, R KANNAN <rk111810 at gmail.com> wrote:

>
>
>
>
>> Message: 9
>> Date: Fri, 06 Jan 2012 17:40:05 -0800
>> From: jk90090 <jk90090 at gmail.com>
>> Subject: Re: [mythtv-users] Mythbutu 11.04 -> 11.10 breaks X-server
>> To: mythtv-users at mythtv.org
>> Message-ID: <4F07A275.201 at gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> On 1/6/12 5:11 PM, R KANNAN wrote:
>> > Hello,
>> >
>> > I had a working version of Mythbuntu 11.04 on my laptop and I gave in
>> > to frequent suggestions from it to upgrade to Ubuntu 11.00 this
>> > afternoon. Friday afternoon is not a good time to update. After
>> > installing the updates, it restarted and I found that the X server is
>> > broke.
>> >
>> > I can login to the consoles Alt-F1...Alt-F5 fine but the X server
>> > shows a blank seen. The Myth backend seems to be running fine and so
>> > is Mythweb web server (Apache). The file system seems OK but the
>> > X-display flashes for a few times and there is a blank screen. I have
>> > tried..
>> >
>> > init 3
>> > init 5
>> >
>> > to restart the X server with the same result.
>> >
>> > I see an error message flash by just after grub but I cannot make out
>> > anything. It switches then to purple splash screen before the flashing
>> > followed by
>> >
>> > I thought the update should not change the configuration files and so
>> > should work as before.
>> >
>> > Any ideas?
>> Start with looking in your /var/log/Xorg.0.log for errors.
>> Next, I found Ubuntu troublesome when trying to install video drivers,
>> so there could be a kernel driver mismatch or something.  apt-get update
>> && apt-get upgrade to make sure everything is updated and installed.
>> For instance today I loaded Mythbuntu, which defaulted to Nvidia 175.x
>> driver.  I enabled the repo for 285.x (or whatever # it is) and
>> installed it, but 175 just stayed as the working driver.  I'm no Ubuntu
>> expert, so there was probably a trick to getting it working, but in the
>> end I just removed the 175 driver which made the nvidia-current (285)
>> become the working driver.
>>
>> -JK
>>
>> Thanks for your replies. apt-get update & apt-get upgrade did not upgrade
> any packages for me. I also renamed /etc/gdm/custom.conf as suggested to
> avoid auto-login without any luck. But here is what I found...
>
> looked at /var/log/Xorg.0.log file and found the following
>
> [    77.000] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Jan  7
> 08:35:29 2012
> [    77.000] (==) Using system config directory
> "/usr/share/X11/xorg.conf.d"
> [    77.000] (==) No Layout section.  Using the first Screen section.
> [    77.000] (==) No screen section available. Using defaults.
> [    77.000] (**) |-->Screen "Default Screen Section" (0)
> [    77.000] (**) |   |-->Monitor "<default monitor>"
> [    77.000] (==) No monitor specified for screen "Default Screen Section".
>         Using a default monitor configuration.
> [    77.001] (==) Automatically adding devices
> [    77.001] (==) Automatically enabling devices
> [    77.001] (WW) The directory "/usr/share/fonts/X11/
> cyrillic" does not exist.
>
> So there is no configuration but using defaults. The conf files under
> /usr/share/X11/xorg.conf.d did not have Screen or Monitor sections. They
> had several input sections similar to
>
> Section "InputClass"
>         Identifier "evdev pointer catchall"
>         MatchIsPointer "on"
>         MatchDevicePath "/dev/input/event*"
>         Driver "evdev"
> EndSection
>
> So I tried to create a new configuration file with
>
> Xorg -configure
>
> I ot the following:
>
> (EE) Failed to load module "vmwgfx" (module does not exist, 0)
> (EE) vmware: Please ignore the above warnings about not being able to to
> load module/driver vmwgfx
> (++) Using config file: "/root/xorg.conf.new"
> (==) Using system config directory "/usr/share/X11/xorg.conf.d"
> Number of created screens does not match number of detected devices.
>   Configuration failed.
>  ddxSigGiveUp: Closing log
>
> I cannot understand where the two screens are coming from.
>
> At one time with my old configuration I had added an external monitor and
> disabled it in Xfwm window manager. I tried turning the external monitor on
> without any luck.
>
>
>
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