F17 External Monitor on 945GM

[Philippe LeCavalier]

On Thu, Jul 19, 2012 at 9:14 AM, Philippe LeCavalier <
support at plecavalier.com> wrote:

> Hi Everyone.
>
> First post...Just switched to this project after years of using another
> distro. It's been a few months now and I'm on my third laptop; it's been a
> rough year ;)
>
> Whenever possible, I like to connect to an external monitor. This worked
> very well in F16 on my Dell w/nvidia. Then the inverter went south and I
> was stuck with a Lenovo T60 w/Intel 945GM(I quickly learned I could no
> longer live without wide screen :) ). And that's where the fun started...
>
> A yes. The infamous Intel 945 chipset...I waded through the whole sluggish
> feel issues of the >2048 res issue. Then an update appeared to have
> addressed all my issues(no idea which one because the one that was supposed
> to fix it didn't). No matter what I'd do, connecting any external monitor
> just worked; all was well.
>
> Then more updates came and my setup broke again. That became
> a vicious circle for a while. Noticed F17 was out so I switched to that.
> Just like that everything stabilized(nice work on gnome-shell btw)...Then I
> inherited a Toshiba Tecra A8 --no 64bit extensions like my Dell but excited
> and couldn't resist switching nevertheless. Oddly enough, despite it being
> the exact same video chipset as the Lenovo I can't get any external monitor
> to work. Period. All the little tricks and tips I learned over the past few
> months aren't helping any.
>
> So here are the symptoms: if I connect an external monitor(VGA) it won't
> light up at all. My LCD flickers and comes back to it's original state.
> Fine. The display settings reflect that one was connected and typically ids
> it properly. Again, fine. I then set an appropriate resolution and
> placement for both and hit apply. At this point the screen flickers again
> and my laptop comes back but the monitor does nothing(orange light). I can
> however, bring my cursor passed the LCD to where the monitor "is" but it's
> not lit so no joy there. If I let the time run out on the dialog everything
> goes back to normal. No harm no foul. If I play with any of the kbd combo
> keys to force the external monitor gnome-shell freaks out and I'm forced to
> recover using the console. The only thing I can successfully accomplish is
> Fn+F5 resulting in the external monitor only-type setup. Recovering from
> that without restarting X is not possible. If I toggle back to my LCD the
> screen flickers and spins. Same goes for disconnecting the VGA cable. At
> this point I can't go back to the monitor either. I have no choice but to
> open a console and restart Gnome-Shell. The odd time I can't even do that
> and must power off(ouch! haven't had to do that in Linux for years)
>
> Sorry about rambling on so much, just trying to give as many details as
> possible. Any suggestions would be greatly appreciated. Many thanks in
> advance.
>
> --
>
> Thanks,
> Phil
>
> references:
>
> video chipset:
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
> 943/940GML Express Integrated Graphics Controller (rev 03)
> 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
> 943/940GML Express Integrated Graphics Controller (rev 03)
>
> packages:
> gnome-shell 3.4.1
> kernel 3.4.0-1.fc17.i686
>

Anyone?
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