Customer service was able to give me some settings for the monitor at 60 and 144hz.
Now, how would I translate those into the needed values, given that I need them in this format:
xrandr --newmode "2560x1440_59.96" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync
Given that each number for those are represented like this:
clock: 241.5 MHz
h_active: 2560 h_sync: 2752 h_sync_end 3024 h_blank_end 3488 h_border: 0
v_active: 1440 v_sync: 1443 v_sync_end 1448 v_blanking: 1493 v_border: 0
+vsync would need to be
-vsync according to that screenshot. And instead of
312.25, the pixel clock would be
241.50 (even though I'm not 100% on if the values in the greyed out boxes are correct, the Actuals show the 1st grey box to be correct, so I presume the 2nd would be).
Then I have the obvious of 2560 and 1440 for the h_active and v_active. But the sync, sync_end, and blanking are the ones that I'm not sure on. Maybe I just add. i.e. 2560+32 for h_sync, but then what would sync_end be?
Edit After thinking about it, I came up with this:
xrandr --newmode "2560x1440_59.95" 241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync -vsync.
Looking at that image, Total Pixels = Active + Blanking. So it should be the last value of
v_ settings match the defaults given by
cvt of 1443 to 1448 for
v_sync_end, so I kept those.
And using that logic, I did what those did for vertical settings to horizontal settings, so I just got
h_sync_end by adding Front porch to Active then adding Sync width to that result.
I figure blanking is the entire amount (i.e. Front Porch + Sync Width + Back Porch), and since Total is just Active + Blanking, that should be my
Now, we test it.
Well, that fixed the striping issue. However, the font looks terrible. It looks fine on my primary 1080p monitor though.
Hmm, that may be a Linux font issue. :c
Well, no. It's doing the same thing to images. :S
Well, the monitor is reporting that it is in 1280 x 1440 @ 60Hz mode.... :|
xrandr reports the following:
HDMI-1 disconnected 2560x1440+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
Mode 2560x1440 on HDMI-1 is the following:
241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync -vsync
So, I have no idea why it's doing that. I do see it still says connected. I'm not sure why xrandr can't see the extra monitor correctly :/