Cheng Yutong wrote: > I'm using an old graphic card on my debian PC, which is HD 6770, > > and these days i've got a new display that support 2k resolution > (2560x1440), > > but on the Display Setting dialog, btw, my DE is XFCE4, the highest > resolution is 1920x1200.
This suggests that the monitor is not sending an EDID block that supports 2560x1440. > i've tried to generate a Modeline with `cvt 2560 1440`, > Good. > # 2560x1440 59.96 Hz (CVT 3.69M9) hsync: 89.52 kHz; pclk: 312.25 MHz > Modeline "2560x1440_60.00"?? 312.25?? 2560 2752 3024 3488?? 1440 1443 1448 > 1493 -hsync +vsync I hope it doesn't actually have ? question marks in it. > > and add it to the display, but when set it with `xrandr`, it does not work > well, i got an error message: > > > Input Signal Out ofRange! > > Current Mode: > > ?????? H = 89.6kHz V = 60Hz > > Change Mode to: > > ?????? 1920 x 1200 60Hz That's the monitor saying it doesn't like 2560x1440. What kind of monitor? -dsr-