Installing Ubuntu 14.04.3on multi hard drive system

Petter Adsen petter at synth.no
Fri Sep 25 06:07:26 UTC 2015


On Thu, 24 Sep 2015 16:46:07 -0500
Jim Byrnes <jf_byrnes at comcast.net> wrote:

> On 09/23/2015 10:47 AM, Jim Byrnes wrote:
> > On 09/23/2015 09:45 AM, Liam Proven wrote:
> >> On 23 September 2015 at 15:24, Jim Byrnes <jf_byrnes at comcast.net> wrote:
> >>> thanks for the info.  Ran into great difficulty getting a usable 14.04
> >>> install.  Seems to be related to my two monitors, but will start a new
> >>> thread about it once I gather some facts.
> >>
> >> For multihead, it's generally easier to use the vendor's binary
> >> drivers if available.
> >>
> >
> > I have an on board GeForce 9100.  I have tried the 3 Nivida drivers that
> > are offered in the display setup with bad results.  This machine runs
> > 12.04 just fine which is puzzling to me.  But like I said I will gather
> > more info and be back for some help.
> >
> > Regards, Jim
> >
> >
> 
> Ok. I reinstalled 14.04 with much better but not ideal results. I did 
> two things differently this time.  I had the install program format the 
> partition I was using for 14.04 and I changed from the nouveau driver 
> directly to the same Nvidia driver (vers 304) I am using on 12.04 
> instead of trying a newer one first on 14.04.
> 
> The two monitors I have are a HP w2338h and a Hannspree HF235. The HP is 
> hooked up hdmi to a dvi adaptor and the Hannspree is vga.
> 
> Under 12.04 the HP resolution is: 1920x1080 (16:9) and the Hannspree 
> resolution is the same: 1920x1080 (16:9). Under 14.04 using the same 
> driver the HP is 1920x1080 (16:9) but the Hannspree is 1360x768 (16:9).
> 
> I don't understand why when using the same driver on the same machine 
> 12.04 and 14.04 produce different options.

Probably because there are many other differences between the two.

> To make 14.04 usable I really need to get both monitors at the HP's 
> resolution.  Anyone have any ideas of how to do that?

Three ideas:

1) Write an xorg.conf file, and specify the resolution there.
2) Try with another driver (nouveau) or different version.
3) Check with xrandr if X already has the resolution you want
available for the monitor, but is simply using another.

Petter

-- 
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"Are you sure?"
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