X failing to start on Acer Aspire one - have just upgraded to latest kernel on 12.04

[Denton Larson]

Hi Cris

This is what I fond when I had with a Dell MINI 10.
In a Terminal run lspci  and see what you have, worked for me.


Re: sudo restart lightdm is it to be fixed?
I don't know what "Dell Inspiron mini 10 sudo" is, but if you have a Dell Inspiron mini 10 netbook, especially if it is a Poulsbo based GMA500 netbook, then the problem is known, and there is an easy workaround.
https://wiki.ubuntu.com/HardwareSupp...eoCardsPoulsbo

To verify the netbook chipset, run lspci in a terminal window. A Poulsbo based netbook should show something like this:
Quote:
~$ lspci
00:00.0 Host bridge: Intel Corporation System Controller Hub (SCH Poulsbo) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation System Controller Hub (SCH Poulsbo) Graphics Controller (rev 07)
00:1b.0 Audio device: Intel Corporation System Controller Hub (SCH Poulsbo) HD Audio Controller (rev 07)
00:1c.0 PCI bridge: Intel Corporation System Controller Hub (SCH Poulsbo) PCI Express Port 1 (rev 07)
00:1c.1 PCI bridge: Intel Corporation System Controller Hub (SCH Poulsbo) PCI Express Port 2 (rev 07)
00:1d.0 USB controller: Intel Corporation System Controller Hub (SCH Poulsbo) USB UHCI #1 (rev 07)
00:1d.1 USB controller: Intel Corporation System Controller Hub (SCH Poulsbo) USB UHCI #2 (rev 07)
00:1d.2 USB controller: Intel Corporation System Controller Hub (SCH Poulsbo) USB UHCI #3 (rev 07)
00:1d.7 USB controller: Intel Corporation System Controller Hub (SCH Poulsbo) USB EHCI #1 (rev 07)
00:1f.0 ISA bridge: Intel Corporation System Controller Hub (SCH Poulsbo) LPC Bridge (rev 07)
00:1f.1 IDE interface: Intel Corporation System Controller Hub (SCH Poulsbo) IDE Controller (rev 07)

On Oct 11, 2012, at 6:31 AM, Chris Green <cl at isbd.net> wrote:

> On Thu, Oct 11, 2012 at 11:56:01AM +0100, Chris Green wrote:
> [snip my tale of woe]
>> 
>> Aha!  It's back to the original problem (which I thought nomodeset had
>> cured), when I hit CTRL-ALT-F7 to go back to the GUI I get half a screen
>> of GUI with a totally broken mouse interface to it.  
>> 
> Typical, just after posting this I turned up the answer with a Google
> search (I had tried before but obviously I got better search terms this
> time). 
> 
> The answer is to restart lightdm after the system has booted and it's
> showing the broken display.  Just go to a console login and do:-
> 
>    sudo lightdm restart
> 
> and everything is perfect.  
> 
> Is there any way I can fix this so I don't have to restart lightdm, i.e.
> is there something I can do in the ligthdm.conf file to fix it?
> 
> -- 
> Chris Green
> 
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