[ltp] Re: Do I actually have a 1920x1200 screen or not?

Ted Frater linux-thinkpad@linux-thinkpad.org
Tue, 30 Oct 2007 20:27:58 +0000


Daniel Pittman wrote:

>Ted Frater <ted.frater@virgin.net> writes:
>  
>
>>Daniel Pittman wrote:
>>    
>>
>>>Daniel Pittman <daniel@rimspace.net> writes:
>>>
>>>      
>>>
>>>>G'day.  I am currently trying to work out for certain if I have a
>>>>1920x1200 screen in my laptop or not -- in all seriousness.
>>>>
>>>>I have a Thinkpad T61p, 6460-74M, which /should/ have a 1920x1200
>>>>display in it.  At least, I expected it to when I paid for it.
>>>>        
>>>>
>
> ...and, for those following at home Lenovo (and my vendor) have finally
>agreed with each other: It /should/ have a 1920 screen, it doesn't, and
>they presume that the hardware was assembled with the wrong LCD panel.
>
>The machine is now being run through the DOA process and will be
>replaced, in due course, with something that does have the 1920 screen.
>
>[...]
>
>  
>
>>Can you do something for us all that are interested in your problem?
>>
>>Can you measure the exact height and width of your screen/ in inches
>>or mm's accurate to the nearest mm. or 32nd.
>>    
>>
>
>    Width: 331mm   Height:  210mm
>
>My X server / video driver agree with that measure:
>
>    ] xdpyinfo |grep dim
>      dimensions:    1680x1050 pixels (331x210 millimeters)
>
>  
>
>>Because as far as I know the pixels per inch havnt gotten more than
>>what one has on a standard 1600 by 1200 15.4 diagonal TFT
>>    
>>
>
>They have indeed passed that point, but I know of nothing more dense
>than a 1920 x 1200 screen in the laptop market.
>
>[...]
>
>  
>
>>You may have a 1920 by 1200
>>    
>>
>
>Nope.
>
>  
>
>>How does yours actually measure up?
>>    
>>
>
>Turns out that Lenovo suspect it had the wrong LCD panel put in, but
>will be identical in size after they put the right panel in place.
>
>Regards,
>        Daniel
>  
>
Thanks  for measuring your screen.
 If one devides 331mm by 1920 the answer is .172 dpmm.
this compares with my 1600  measuring 305mm gives .19dpmm.
 So your right, they have improved the screen resolution.
 
It would be interesting to compare them along side each other with the  
same image .
Ihad the chance to replace the originalscreen with a new one some 2 yrsago,
the difference mainly is the screen  does not have a yellow tinge like 
the old one and the backlight is about 20% brighter.
Funnily enough it was a replacement screen from a Dell inspiron 8000.
I still have the old one put by as a spare.
Ted Dorset UK.