Re: Monitor Resolution Problems
On 16/02/2014 15:40, Marc Shapiro wrote:
> On 02/16/2014 11:47 AM, Dan Purgert wrote:
>> On 16/02/2014 14:09, Marc Shapiro wrote:
>>> I purchased a new monitor and I am having problems with the resolution.
>>> It is a Samsung SyncMaster S24B150 with an optimal resolution of 1920 x
>>> 1080 @ 60 Hz. The highest resolution that I am offered under
>>> System/Preferences/Monitor Settings (in Mate) is 1360x768. That is also
>>> the only setting that matches a 16x9 aspect ratio. I am using the
>>> supplied VGA cable. Do I need to use a DVI cable to get the full
>>> resolution? Or is there something else that I can do? Just today I
>>> noticed that the image is not using the full width of the monitor. The
>>> height seems to be correct. I don't think that it was doing this
>>> before, but I don't see any way to adjust it, either through software,
>>> or the monitor's menus. The monitor's menus give me the option of
>>> 'Auto' or 'Wide'. Using 'Auto' gives me a 4x3 aspect ratio and 'Wide'
>>> uses most of the screen, but not all. Again, will getting a DVI cable
>>> solve this? Are there drivers that I need to find and install? Any
>>> other clues as to what to look for? All help appreciated.
>>>
>>> Marc
>>>
>>>
>>
>> The monitor is probably not providing a full list of supportd resolutions via
>> the VGA cable. swapping out to a DVI cable may correct this, also, are you
>> using the proper drivers for your graphics card?
>>
>>
>>
> I have an MSI R5450 PCI-E video card and lsmod shows the radeon module
> installed. This sounds right. Can anyone verify this. I will get a
> DVI cable and see if that gives me the full list of available resolutions.
>
> Marc
No, what I mean is the monitor tells the gfx card what it can handle (e.g.
1920x1280 @ 120hz), so that you (the user) don't do something out of range of
the monitor.
If monitor isn't relaying this information via the VGA cable, then your gfx card
is staying with "known-safe" resolutions.
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