Mac Book externes Display schlechte Qualität

Hi. Habe mir einen 27 Zoll LG Monitor geholt und diesen mittels Displayport zu DVI und mittels Adapter von DVI zu HDMI an mein 2009 MacBook Pro 15 Zoll Monitor angeschlossen.
Mal abgesehen davon, dass Apple nicht fähig ist, eine ordentliche Funktion zum Abschalten des Notebook-Monitors einzubauen, scheint es so, dass der Monitor, obwohl nativ bei Full-HD betrieben, Texte und Symbole nicht scharf darstellen kann. Bei der Konsultation eines Service-Mitarbeiters vom Saturn, meinte dieser, dass dies wohl die Regel bei Nicht-Apple-Monitoren sei. Es scheint so, das Monitore von Fremdanbietern nicht optimiert betrieben werden.
Meine Frage ist:
1. Wisst Ihr ob das stimmt?
2. Kann man mittels Fremdtreiber etwas optimieren?
Ich benutze ein überteuerten Apple Original-Adapter von DisplayPort zu DVI. DVI zu HDMI ist von einem Fremdanbieter.
Sollte 1. "Ja" sein, 2. "Nein", dann möchte ich Apple mal fragen, ob das deren Ernst ist. Würde für mich das letzte Apple-Produkt bedeuten. Jeder billigster Windows-Rechner bekommt das scharf dargestellt. Pure Absicht? Ein Cinema-Display kostet ja nur rund 800 Euro.
Besten Dank an euch für eure Zeit.
Grüße euer HarzIV

I don't speak German but was able to translate it. If you understand English could you check how many battery cycles you have on the machine? (Check in Apple System Profiler). Is the capacity (mAh) always bad or does it go between normal and bad?
Also, you could try a PRAM and SMC reset. Unplug the power, remove the battery, and then hold down the power button for 5 seconds. Then put the battery back in and close the battery door. Last, turn the machine on and hold down Command-Option-P-R until it makes the chiming sound twice.
Hope you understand this. Sorry to hear about your bad experience.

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