![]() Generate a VESA CVT mode line with reduced blanking: cvt -reduced 1920 1080 60ġ920 is your desired width, 1080 is your desired height, and 60 is your desired frequency in hertz. If for some reason you must convert from a digital signal to an analog VGA signal, there is a hit-or-miss software thing you can try: You'll also end up with a better overall picture because of the various other advantages of using a digital signal. Also, the flickering should go away because you won't be using the possibly problematic conversion from a digital signal to an analog signal. With a digital signal, you won't need to calibrate the image because the display knows where the pixels are supposed to show. Use a DVI-D or DVI-I cable to make a direct digital connection from the graphics card to the display. What may cause the symptoms I described? Is the resolution I'm trying to set wrong? Or does this point to a hardware problem with graphics card, monitor, or perhaps even the adapter?Īccording to your graphics card's specs and your display's specs, both support digital DVI output and input, respectively.īased on the manual picture adjustment you mentioned, you seem to be converting from the digital DVI signal to an analog VGA signal. HDMI-0 disconnected (normal left inverted right x axis y axis)ĭVI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 0mm x 0mm VGA-0 disconnected (normal left inverted right x axis y axis) My monitor is connected with a VGA-DVI-adapter to an AMD/ATI RV620 HDMI Audio (Radeon HD 3400 Series) graphics card. This has made the black edges smaller and I can see the entire display, but now I get flickering when I have (rapidly) moving images (scrolling, changing desktops, video, etc.). Pressing the "Auto" button on the monitor made it worse, such that part of the display was invisible. I succeeded in changing the resolution, but subsequently, the display did not fill the screen the edges of the monitor were black. My display was at a very low resolution (1024x768), so I added a higher resolution manually using xrandr for my BENQ G2420HDB, which is supposed to have a native resolution of 1920x1080.
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