On 01/08/2022 21:26, John Pilkington wrote:
On 31/07/2022 13:07, GianPiero Puccioni wrote:
Hi,
I want to decrease the refrash rate of the video to use less battery but I am
having difficulties...
I have F35 with KDE on a Dell G15 with Nvidia GA107M [GeForce RTX 3050 Ti
Mobile], the RPMFusion drivers and a 1920x1080 resolution (native).
In the "system settings-display" There is the possibility to change refresh from
120Hz to 60Hz but it doesn't stick; I change it and "apply" but if I change
screen and go back to "display" it's again at 120Hz, I tried "nvidia-settings"
but it has only info, not settings.
The program "xrandr" reports
1920x1080 120.00*+ 59.97 59.96 59.93
Is this the problem 59.97 not 60?
Any suggestions?
G
Resending to list:
I think I may have seen something like this in the past, with the gui reporting
a possible refresh rate as an integer but not reinterpreting that as the
appropriate floating point value when trying to use it as a setting.
Have you tried setting with xrandr?
xrandr --output <output> --rate 59.97
looks as if it might help, if I knew what to put as <output>
And the archlinux xrandr wiki looks as if it could be useful.
As xrandr reports
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis)
1920x1080 120.00*+ 59.97 59.96 59.93
I used "xrandr --output eDP-1 --mode 1920x1080 -r 59.97"
the answer, after a couple of second of black screen(scary!)
xrandr: Configure crtc 0 failed
I did it as root but maybe I need some kind of permission?
G
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