Mostrando entradas con la etiqueta monitor. Mostrar todas las entradas
Mostrando entradas con la etiqueta monitor. Mostrar todas las entradas

jueves, 5 de junio de 2014

Añadir una resolución a nuestra pantalla en Linux

A veces Kubuntu no muestra las resoluciones correctas (sospecho que los GPUs Intel tienen algo que ver). Si quisiéramos agregar  1280x800 al monitor LVDS1 (xrandr --current para ver el nombre de tu monitor), generamos tiempos de sincronización con cvt:
$ cvt 1280 800
# 1280x800 59.81 Hz (CVT 1.02MA) hsync: 49.70 kHz; pclk: 83.50 MHz
Modeline "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync


Agregamos la Modeline resultante a xrandr:
$ xrandr --newmode "1280x800"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync


La añadimos a nuestra pantalla, y la activamos:
$ xrandr --addmode LVDS1 1280x800
$ xrandr --output LVDS! --mode 1280x800


miércoles, 18 de noviembre de 2009

Samsung SyncMaster 793MB Horizontal Brown Lines

Brown lines appear from the right, "stabbing" at any onscreen text and the mouse cursor, like the ghost of Winamp has taken possesion of the screen.  It happens randomly, after the monitor has been on for a while (heat?), and stops as suddenly as it started.  Sadly there seems to be no way to exorcise this common problem, as it's probably some design fault in the circuitry.  Screen resolution, refresh rate and interference from other devices seem irrelevant to the problem.  Temporal repelling of the evil equalizer can be achieved slaping or pressing the top of the monitor, or for the peacefully minded, pumping up the brightness (turning MagicBright to video and back does the trick), thought it "feels" like the ghost develops immunity against these treatments with time.  Best advice is to stay away from the SyncMaster 793MB altogether, since the problem will only get worse, eventually making it useless (even my old 550v's work better; granted, they may take a while to start working, the colors may be messed up and way too dark... but at least you can read on them).