F16: second monitor is not detected.
Steven F. LeBrun
steven at lebruns.com
Thu Nov 17 13:53:03 UTC 2011
On 11/17/2011 01:55 AM, Chris Bredesen wrote:
> On 11/17/2011 10:26 AM, Steven F. LeBrun wrote:
>> Recently updated my laptop to Fedora 16. Fedora 16 is not detecting my
>> second, external, monitor. The Monitor connects with an HDMI connector
>> or a DVI connector through a USB docking station. Connecting it either
>> way does not make a difference. What is strange is that during the boot
>> process, the system will display the flash screen on the second monitor.
>>
>> There was a bug filed about this before Fedora 15 was released. Does
>> this bug still exist in Fedora 16? Does anyone know if any work has been
>> done on it? The bug deals with the Intel Sandybridge chipset. Note that
>> the laptop screen works fine.
>>
>> OS: Fedora 16 x86_64
>> Kernel: 3.1.1-1.fc16.x86_64
>> Desktop: Gnome 3.0.1
>> System: Dell XPS 15R (i5-2410M CPU @ 2.30GHz x 4)
>> Graphics: Intel Sandybridge Mobile
>> Memory: 8 GB
>>
>> Bug:
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=40592
> Same problem here, no resolution that I have seen. Plenty of bugs open
> in Fedora complaining of this and related issues:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=698985
> https://bugzilla.redhat.com/show_bug.cgi?id=680569
> https://bugzilla.redhat.com/show_bug.cgi?id=680333
> https://bugzilla.redhat.com/show_bug.cgi?id=715113
>
> Love to have some attention on this but I can only guess that not
> everyone is seeing this. It's the only major usability issue I have
> with Fedora these days but it's a big one.
>
> I work around the issue by using the keyboard shortcut to toggle to the
> mirrored mode and then once the ext display is up, I can turn off LVDS
> and fix the resolution.
>
> In related news, you might find that once this is working, it fails to
> wake up after suspend and you have to do the dance again.
>
> -CB
What is the keyboard shortcut to toggle mirrored mode? I was not aware
that there was one.
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