Installing Ubuntu 14.04.3on multi hard drive system (solved)

Jim Byrnes jf_byrnes at comcast.net
Sat Sep 26 23:55:44 UTC 2015


On 09/25/2015 01:07 AM, Petter Adsen wrote:
> 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
>

Petter,

Thanks for the hint about xorg.conf, I had forgotten about it.  It seems 
14.04 does not generate one on it's own.  I copied the one from the 
working 12.04 install to 14.04 and now my resolutions match on both 
monitors.

regards,  Jim





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