[mdlug] Mybuntu 11.04 -> Mythbuntu 11.11 causes X server to break

Jeff Hanson jhansonxi at gmail.com
Sun Jan 8 20:36:20 EST 2012 

Try: sudo dpkg-reconfigure gdm

On Sun, Jan 8, 2012 at 3:21 PM, R KANNAN <rk111810 at gmail.com> wrote:
> 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 12:22 PM, R KANNAN <rk111810 at gmail.com> wrote:
>
>> Thanks. But I cannot find the Xorg file with valid screen, device sections
>> anywhere. I don't know where it is getting it from (maybe it is using
>> defaults). All I did with gdm was to remove custom.conf file which was
>> soing auto log on.
>>
>> Let me look into ldm settings.
>>
>> On Sat, Jan 7, 2012 at 11:05 AM, Tony Bemus <tony at bemushosting.com> wrote:
>>
>>> Im not sure about Mythbuntu but Ubuntu changed from GDM to LDM (Light
>>> Display Manager) for the login manager.  I had a similar problem when I
>>> did my upgrade and I removed my xorg.conf file and rebooted.  After that
>>> everything worked.
>>> Tony-
>>>
>>> On Sat, 2012-01-07 at 09:15 -0500, R KANNAN wrote:
>>> > I 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.
>>> >
>>> > Someone had suggested that I should turn off the autologon off
>>> > (/etc/gdm/custom.conf). That did not help.
>>> >
>>> > Thanks
>>> >
>>> > On Sat, Jan 7, 2012 at 1:53 AM, Jeff Hanson <jhansonxi at gmail.com>
>>> wrote:
>>> >
>>> > > Try adding "nomodeset" to the kernel boot line in Grub2.
>>> > >
>>> > > On Fri, Jan 6, 2012 at 8:09 PM, R KANNAN <rk111810 at gmail.com> 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?
>>> > > >
>>> > > > Thanks
>>> > > > _______________________________________________
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>>
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