My old CRT monitor is showing signs of needing replacement.
Will the newer LCD monitors be automatically recognized be the system?
That’s a good question. Actually, not all LCD monitors are recognised correctly - invalid EDID tables can cause problems with auto-detection of the native resolution, and some Viewsonic models seem to be especially troublesome to Linux users. (Just google ‘nvidia viewsonic’ and similar to see what I mean). I’ve had to assist a number of users with EDID issues concerning Viewsonic monitors. Combined TV/monitor units seem to give the most problems.
Make sure you use a good quality VGA cable, with all pins connected. (There are some available that don’t). The DDC communication utilises pin 12 (data), pin 15 (clock), and pin 9 (to supply +5V DC up to 50mA to drive the EDID EEPROM). This allows the graphics card to read the EDID even if the monitor is powered off.
The Acer V173 works well but was far to bright. After the brightness and contrast was adjusted, it was necessary to change the default ‘Gamma’
setting in the configure desktop menu. The problem is that the gamma setting does not stay. After a reboot it reverts to the default 1.00 setting.
Checking the ‘systemwide’ box made no difference.
How do I enter a setting that will remain after a reboot?
Is it not better DVI-D? A modern monitor will have it.
Of course, but not all low-end monitors or older graphics cards have anything better than analogue VGA outputs. The OP mentioned he had a Geoforce MX 4000, which only has VGA and S-video out , although this may depend on model
On 2012-05-15 03:26, deano ferrari wrote:
>
>> Is it not better DVI-D? A modern monitor will have it.
> Of course, but not all low-end monitors or older graphics cards have
> anything better than analogue VGA outputs. The OP mentioned he had a
> Geoforce MX 4000, which only has VGA and S-video out , although this may
> depend on model
Ah, I understand.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)