kde changes screen refresh rate of nvidia card
Bug #89640 reported by
Viktor Rasmussen
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-restricted-modules (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: kde-systemsettings
The refresh rate is 85hz (as it should be) on the login screen, but when kde starts it changes the refresh to 60 or 75hz.
In kde systemsettings i can only give refresh rates from 50 to 56hz. (systemsettings also crashes on exit if I have been to administrator mode. Another problem?)
If I change the driver to nv instead of nvidia, then it works
ProblemType: Bug
Date: Sun Mar 4 12:49:40 2007
DistroRelease: Ubuntu 7.04
Uname: Linux ubuntu 2.6.20-9-386 #2 Mon Feb 26 02:58:41 UTC 2007 i686 GNU/Linux
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I'm having the same problem, although my screen is in interlace mode. According to nvidia-settings it is in 1024x768, 43Hz interlaced mode (or it might have been 42Hz). According to xrandr, 1024x768, 57Hz:
SZ: Pixels Physical Refresh
*0 1024 x 768 ( 346mm x 260mm ) 50 53 54 55 56 *57
1 800 x 600 ( 270mm x 203mm ) 51 62 63 64 65 66 67
2 640 x 480 ( 216mm x 162mm ) 52 73 74 75 76
3 960 x 600 ( 325mm x 203mm ) 58
4 896 x 672 ( 303mm x 227mm ) 59
(...etc..)
I am using the nvidia driver, gdm, kde, and kubuntu 7.04. kernel: 2.6.20-14-generic, x86_64
Unfortunately, I cannot test the nv driver as it does not support my GeForce 7800 GT.
One thing I should mention is that I have my system set up in a multiseat configuration. When it wasn't, I was able to use nvidia-settings to change the refresh to 85Hz, which lasted until reboot. But now, because I'm running two Xgl sessions on top, I cannot use nvidia-settings (that's why I can't check whether it was 42 or 43 Hz.)
Here is my ~/.kde/ share/config/ displayconfigrc file. Notice that it has the correct refresh value listed:
[General]
targetgamma=2.0
[Screen0]
dpmsEnabled=off
dpmsSeconds=2700
height=768
reflectX=0
reflectY=0
refresh=85
rotate=0
width=1024