https://bugs.kde.org/show_bug.cgi?id=382025
--- Comment #2 from Tomasz Kowal <t...@onet.eu> ---
Yes, with xrandr also occurs when i set 59Hz or 60Hz. With 30Hz is ok.
Look for pclk value, is this not too high value for this 3840x2160@60?
xandr -q
Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
DisplayPort-0 connected primary 3840x2160+0+0 (normal left inverted
right x axis y axis) 600mm x 340mm
3840x2160 60.00*+ 30.00
1920x1080 60.00 59.94
1600x900 60.00
1280x1024 60.02
1152x864 59.96
1280x720 60.00 59.94
1024x768 60.00
800x600 60.32
720x480 60.00 59.94
640x480 60.00 59.94
HDMI-0 disconnected (normal left inverted right x axis y axis)
DVI-0 connected (normal left inverted right x axis y axis)
1920x1080 60.00 +
1680x1050 59.88
1600x900 60.00
1280x1024 75.02 60.02
1280x960 60.00
1152x864 75.00
1280x720 60.00
1152x720 59.97
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32
640x480 75.00 59.94
720x400 70.08
gtf 3840 2160 60
# 3840x2160 @ 60.00 Hz (GTF) hsync: 134.10 kHz; pclk: 712.34 MHz
Modeline "3840x2160_60.00" 712.34 3840 4152 4576 5312 2160 2161
2164 2235 -HSync +Vsync
tk
W dniu 17.07.2017 o 11:20, Sebastian Kügler pisze:
> https://bugs.kde.org/show_bug.cgi?id=382025
>
> --- Comment #1 from Sebastian Kügler <se...@kde.org> ---
> Thanks for the report, Tomasz!
>
> Could you check if this behavior also occurs if you use the xrandr tool to set
> up your screens?
>
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