Dual Display problems in 12.10 and Raring

[Ric Moore]

On 03/04/2013 04:58 PM, Colin Law wrote:
> On 4 March 2013 21:35, Ric Moore <wayward4now at gmail.com> wrote:
>> On 03/04/2013 05:21 AM, Colin Law wrote:
>>>
>>> Is anyone using dual displays in Raring alpha (or 12.10 for my second
>>> issue) seeing the problems that I am?  Firstly, with the launcher on
>>> the right hand display it is impossible to place anything (shortcuts,
>>> files etc) on the left hand display, they bounce back tot the right
>>> hand one when an attempt is made to place them there [1].  This is a
>>> new bug on Raring.  The second one however [2] is equally annoying and
>>> has been around since 12.10.  If, for example, two firefox windows are
>>> opened, one on each display, and the FF launcher icon is clicked then
>>> the focus always goes to the one on the same display as the launcher,
>>> whichever FF window last had the focus.  This is not specific to FF,
>>> it applies to any application.
>>>
>>> No-one so far has confirmed the bugs.  There was a big push to get
>>> dual display support working well for 12.04 (if I remember correctly)
>>> but things seem to have gone downhill since then.
>>>
>>> I am using Intel graphics.
>>
>>
>>
>> I dunno, but I do know I have to use nVidia's configuration app, after
>> loading the driver, to turn on twinview support. It sounds like you have one
>> monitor as mirror to the other primary one?
>
> No, normal side-by-side monitors.  As I said it all works perfectly
> apart from the two problems above.
>
>>
>> Now that I have three monitors with two identical nVidia cards, I have to
>> use xinerama to run all three screens as one desktop window. That does seem
>> to incur a performance hit.
>>
>> Without having some sort of driver supported app, I would suggest you google
>> on xrandr as that might actually be a better way to go. I'm looking into
>> that myself. There are several gui's for xrandr in the repos. I tried one
>> but it didn't get there for me. Not yet. YMMV, Ric
>
> As I said, the basic dual display operation is working fine, just the
> specific issues I have described (possibly not very well described
> given the confusion).

Right, but that sort of problems are what twin-view and xandr and 
xinerama were created for. Say you have a lap top and a bigger display 
on your desk to use when you are at home. xandr is what provides that 
kind of support. Out-of-the-box, making two displays act as one takes 
additional "stuff". When it does work, it's kewl!

So, I think you, old friend, may have to resign yourself to googling on 
xandr to ~customize~ your setup the way you want it. Open a terminal and 
type xandr -q and see if it's in use and defining things. If it is, 
there is the culprit, ~I believe~. (not 100% sure, of course)

So, I suspect you have this unseen video Quasimodo down inside your 
machine turning the crank, who requires a touch of the 
command-line-edit. :) Ric





-- 
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
http://linuxcounter.net/user/44256.html