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[Discontinued][17-09-22] RatRefresh - refresh rate switcher, stops LCD tearing
Justin:
Ok I tried under windows 10. iGPU is Radeon hd4600
Latest drivers
It doesn't error out but the testufo tool shows no change:
Edit: the RegEdit keys are showing correctly what you described above, entirely.
Justin:
Could the issue have to do with the fact I'm using the VGA port on the monitor? I will try the HDMI port on both ends (card and monitor) and see what happens.
Rataplan626:
--- Quote from: Justin on February 18, 2023, 03:06:50 pm ---Could the issue have to do with the fact I'm using the VGA port on the monitor? I will try the HDMI port on both ends (card and monitor) and see what happens.
--- End quote ---
darn, I just CAN'T wet notifications working on this forum. Anyway, I don't believe VGA should be any problem at all. I don't have any proper AMD machinery at hand. But I do have some really old Zotac units with something like an AMD A4-4000 or something in there. I could try on that. Feel free though to test HDMI and report :-)
TitanGorilla:
Hi Rataplan,
I seem to have the same issue with any version after 0.11. The refresh rate doesn’t seem to change. I also noticed the EDID file generated is different from 0.11 but this might be the way you designed the later versions. I’m not sure what I could be doing wrong with versions after 0.11. I tried 0.12 and 0.14 and they both seem to give the same issue. It seems using the CRU tool allows the refresh rate to change properly with 0.11. I’m not sure why it might work on 0.11 but not 0.14
I also have a weird issue with my video card. I have a NVIDIA GTX970 and with your utility it resets the video card drivers, the video card reset seems to cause screen tearing. It’s noticeable tearing in browsers such as Chrome in particular. I tried turning off and on manually the display adapter drivers from the device manager even without using your utility and it still seems to cause screen tearing. Restarting my machine fixes the tearing completely. It also doesn’t seem to be an issue with resetting the refresh rate in Windows after setting custom refresh rates with the CRU tool.
Do you know if there is a way to reset the refresh rate from the command line without having to reset the video card drivers, similar if the refresh rate were to be reset from Display settings manually from Windows? Also, do you know what might cause the video screen tearing after resetting the display drivers?
Rataplan626:
--- Quote from: TitanGorilla on February 26, 2023, 04:23:57 pm ---Hi Rataplan,
I seem to have the same issue with any version after 0.11. The refresh rate doesn’t seem to change. I also noticed the EDID file generated is different from 0.11 but this might be the way you designed the later versions. I’m not sure what I could be doing wrong with versions after 0.11. I tried 0.12 and 0.14 and they both seem to give the same issue. It seems using the CRU tool allows the refresh rate to change properly with 0.11. I’m not sure why it might work on 0.11 but not 0.14
I also have a weird issue with my video card. I have a NVIDIA GTX970 and with your utility it resets the video card drivers, the video card reset seems to cause screen tearing. It’s noticeable tearing in browsers such as Chrome in particular. I tried turning off and on manually the display adapter drivers from the device manager even without using your utility and it still seems to cause screen tearing. Restarting my machine fixes the tearing completely. It also doesn’t seem to be an issue with resetting the refresh rate in Windows after setting custom refresh rates with the CRU tool.
Do you know if there is a way to reset the refresh rate from the command line without having to reset the video card drivers, similar if the refresh rate were to be reset from Display settings manually from Windows? Also, do you know what might cause the video screen tearing after resetting the display drivers?
--- End quote ---
So you state with RatRefresh 0.11 it works, but with 0.14 it doesn't work well? That's curious. If that's the case, I can obviously debug that. Weird thing is though, that on my own cab 0.14 works fine, which is why I inititally think about driver issues. Setting a custom refresh rate without resetting the driver is my ultimate goal, see the first two pages of this thread. However I don't think that's feasible without very specific call to drivers, which would make it TOO brittle to my liking. The last time I used CRU, one needed a reboot before the custom refresh rates are available. If that changed, I'm interested. I think I remember some quirks toom, in the sense that when you add for example 59.150 Hz and 59.300 Hz, both are rounded off as 59, and it doesn't work well. I should try again to see if things changed.
I've also changed my email address on the forum in order to try to receive notifications. So if you could conform 0.11 works 'better' than 0.14 on your system, that would help.
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