X200s - 50Hz interlaced display mode only... What a headache!
Bought X200s (1440x900 resolution) recently.
Have found it to be very bad for my eyes.
I've used to work on my aforetime Quanta for hours w/o any problems.
Now with X200s I do have blearing eyes and headache very soon.
Investigating the problem I've found that the best (and the only) display resolution possible is 50Hz.
Moreover, only interlaced display mode is possible, even with native resolution!
So the best mode we have with the newest X200s is 50Hz interlaced...
Well, I've seen such LCD monitors when I was young (that was ages ago)...
But now???
I wonder if there is any other notebook (either netBook) on the market now with maximum refresh rate less then 60Hz?
No fear!
I'm definitely sure that Lenovo should recall this piteous product ASAP.
Message Edited by gelleal on 03-20-2009 12:25 PM
@lead_org
I do not compare CRT to LCD at all.
To be more clear:
1. All modern LCD screens (including all laptop screens currently on market) hold at least 60Hz refresh rate/non-interlaced mode.
2. Whereas cheap laptop LCDs work usually at not more then 60Hz, good screens possess 75Hz and sometimes 90Hz rates.
3. Only very old LCD screens (10+ years ago) had 50Hz of refresh rate maximum and could work utilising interlaced modes only.
4. The common notion states that any good LCD (not CRT) screen must render 60Hz refresh rate at least.
On smaller CRT monitors (~<14 inches) few people notice any discomfort below 60–72 Hz. On larger CRT monitors (~>17 inches) most people would experience mild discomfort unless the refresh is set to a more comfortable 85 Hz or higher. (http://en.wikipedia.org/wiki/Refresh_rate)
Some major manufactures consider 60Hz to be unsufficient, offering 75Hz-capable laptop screens.
5. Low refresh rate setting affects the LCD’s performance (see http://support.apple.com/kb/TA22119?viewlocale=en_US etc. etc.).
So, am I wrong? Or is the market wrong?
Are there any other laptops with 50Hz (interlaced) maximum refresh rate I'm not aware of?
I doubt if any.
Back on topic: with new X200s (1440x900), I have 90Hz (non-interlaced) on external 17" 1280x1024 Sony LCD monitor, and up to 100Hz on external 20" NEC LCD monitor (any resolution).
Both have a great picture.
50Hz interlaced is definitely the laptop screen limitation, not of the Intel 4 Series Express graphic adapter.
I've tried the older X200s (1280x800), which runs at 60Hz non-interlaced and does have a good stable picture.
Did Lenovo accomplish a product invention, or there is a sales pitch of cheap screens below standards?
BTW, in some countries LCD screens with refresh rates below 60Hz are prohibited by public health regulations.
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