monitor

[Nikos Kokras]

LordBaron wrote:

> Euxaristo poli.Einai mia xara kai se mena.Mono pou me anisixei ligaki einai to Pixel
> Clock to opoio einai sta 56.2 antis 49.6 pou itan prin.Mipos exei sxesi me to
> bandwidth tis othonis? An oxi pos tha bro poso antexei i 100sx?

Oxi to doc clock ekfrazomeno se Mhz einai h oi syxnothtes me tis opoies palletai enas
krystallos sthn karta kai paragei to basiko shma. To basiko auto shma diamorfwnetai kai
ta3ideuei sto kalwdio me proorismo thn o8onh.
To video bandwidth apo thn allh einai to megisto dynato dot clock pou mporei na dextei
to monitor, dhladh einai h megisth syxnothta tou ferontos shmatos pou mporei na dextei
to monitor xwris na arxisei na sigopsinetai.
Genika oi o8ones den ypoferoun apo bandwidth kai an den anaferetai to megisto bandwidth
pare san mpousoula to parakatw apo to XFree86 -VideoTimings Howto:

""Your monitor's video bandwidth should be included on the manual's spec page. If it's
not, look at the monitor's higest rated resolution. As a rule of  thumb, here's how to
translate these into bandwidth estimates (and thus into rough upper bounds for the dot
clock you can use):

               640x480                 25
               800x600                 36
               1024x768                65
               1024x768 interlaced     45
               1280x1024               110
               1600x1200               185 ""

Autes einai oi elaxistes times kai pi8anws yparxoun kai sto /etc/X11/XF86Config gia na
tis deis.

Synepws afou h o8onh pianei 1280x1024 megisth analysh, tote 8a exei bandwidth gyrw sta
100Mhz kai synepws eisai poly makria apo to orio me to 56.250 dot clock pou sou
ypedei3a.To XFree86 pairnei thn timh pou tou leme kai psaxnei ean h karta prosferei ena
clock konta sthn timh auth. Polles kartes peftoun poly sto doc clock otan anebazei
kaneis ta color bits. P.x. h 3d2000 apo 120 peftei sta 95 gia 16bit (den koita3a akoma
pou peftei gia 24/32bit).
Texnikws loipon yparxei h dynatothta na anebeis kai allo se periptwsh pou to
yposthrizei h karta sou gia thn dedomenh analysh/xrwma kai fysika to monitor alla den
exw thn empeiria na se symboylepsw sxetika. Den yparxei loipon logos anhsyxias.
H video mode pou proteina einai apo to VESA standard. Einai auth pou pi8anotata exeis
kai sta win9x, kai sigoura h SONY exei dokimasei to monitor se auth th ry8mish afou
allwste yparxei kai stis preset analyseis/vsync toso ths 100ES oso kai tis 100SX. To
disclaimer sto mail mou eixe skopo na me "profyla3ei" apo kapoioa pi8anh ablepsia. Apo
ekei kai pera, yparxei o 8aumastos kosmos tou legomenou ovelclocking, overdriving
klpklp (kai gia ta monitor einai pio akribo sport apo oti einai me tis CPU)
O logos telos pou den yparxoun merikes analyseis sto XFree86 einai giati yparxei h
logikh tis synthrikhs antimetwpishs tou syndyasmou kartas/o8onhs gia ton fobo twn
Ioudaiwn.

Filika
Nikos Kokras
P.S. To asteio einai oti eixa 800x600 at 72Hz kai bariomouna na psa3w pws anebainei !!

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