Custom Resolution Utility (CRU)

[SirHawk]

Yes, those timings with such pixel clock would be 68Hz but I can make 71Hz too on horrid timings resulting in terrible all-screen noise while staying below 165MHz. As I said, it's the same story on both cables. I'm using the very same HDMI-DVI cable I've used on GTX660 and 290X on which I could do full 80Hz with just driver patching and setting a detailed resolution of 80Hz on Native LCD timings. As also previously mentioned, setting an 80Hz resolution on 290X did produce the noise but after switching to 60Hz and back to 80Hz all noise was gone. Had to do that everytime I booted my PC.

Each and every action I took was with drivers patched, currently patching makes no difference, at least not for HDMI-DVI cable. Didn't try not patching with DVI yet.

[ToastyX]

(05-13-2019 09:38 PM)SirHawk Wrote:  As I said, it's the same story on both cables.

So nothing beyond 165 MHz pixel clock is listed even with plain DVI? That isn't right and should not be happening. HDMI-DVI is a separate issue that I will look into.

[SirHawk]

After patching, that is correct for both cables, nothing beyond 165MHz is listed. I'll try tomorrow if non-patched drivers allow me to do overclock with plain DVI cable. Giving some further insight on specs: my current GPU is Sapphire RX 580 8GB Nitro+ and monitor is BenQ GL2250, if any of these help.

EDIT: after unpatching the drivers I can list 80Hz on plain DVI cable but it's distorted and blurry. Very similar to what was going on with 290X and this again happen on any refresh rate, when 165MHz is exceeded

[ToastyX]

(05-13-2019 10:41 PM)SirHawk Wrote:  After patching, that is correct for both cables, nothing beyond 165MHz is listed. I'll try tomorrow if non-patched drivers allow me to do overclock with plain DVI cable. Giving some further insight on specs: my current GPU is Sapphire RX 580 8GB Nitro+ and monitor is BenQ GL2250, if any of these help.

I'm looking into it right now with an RX 480 and I can confirm there's a new limit that affects HDMI-DVI, but it was added in 19.4.1, so I don't know why 19.1.1 didn't work for you. I also don't see why it's affecting DVI for you because I'm not seeing that. Maybe it's applying the same limit in your case.

Try this: https://www.monitortests.com/atikmdag-patcher-1.4.7.zip

[SirHawk]

(05-14-2019 02:00 AM)ToastyX Wrote:  

(05-13-2019 10:41 PM)SirHawk Wrote:  After patching, that is correct for both cables, nothing beyond 165MHz is listed. I'll try tomorrow if non-patched drivers allow me to do overclock with plain DVI cable. Giving some further insight on specs: my current GPU is Sapphire RX 580 8GB Nitro+ and monitor is BenQ GL2250, if any of these help.

I'm looking into it right now with an RX 480 and I can confirm there's a new limit that affects HDMI-DVI, but it was added in 19.4.1, so I don't know why 19.1.1 didn't work for you. I also don't see why it's affecting DVI for you because I'm not seeing that. Maybe it's applying the same limit in your case.

Try this: https://www.monitortests.com/atikmdag-patcher-1.4.7.zip

Glorious, 80Hz on native is listed and working properly on HDMI-DVI (cuz plain DVI brings only issues :v)! Thanks!

[pip611]

Hello,

I have a Dell 7250 laptop and the max resolution is 1366 x 768 so would it possible to raise it to 1920 x 1080?

Thanks

[ToastyX]

(05-14-2019 03:06 PM)pip611 Wrote:  I have a Dell 7250 laptop and the max resolution is 1366 x 768 so would it possible to raise it to 1920 x 1080?

No.

[cezarium]

forgive me if this was already posted
- if i only want to increase the refresh rate there is no difference between your tool and nvidias custom resolution profile right?

- i have a samsung ips hdmi 60hz freesync monitor which does 75hz on a custom resolution and i have no frame skipping. my problem is that sometimes there is some white pixel flashing over a black wallpaper which goes away if i lower the refrash rate or just power off/power on the monitor. what do you think is the problem? i only used nvidia custom profile for 75hz and rest of timings left automatic, i compared them with your tool and they same the same value.
can it be the cable or a hdmi limit?
looks something like this: https://www.youtube.com/watch?v=WiFmd_h_GTU

[1963-c]

hey , thank you , i was trying for so long time to fix my screen resolution but you gave me the solution , thank you again

[ToastyX]

(05-16-2019 06:46 AM)cezarium Wrote:  - if i only want to increase the refresh rate there is no difference between your tool and nvidias custom resolution profile right?

Some games won't recognize higher refresh rates added using the NVIDIA control panel.

(05-16-2019 06:46 AM)cezarium Wrote:  - i have a samsung ips hdmi 60hz freesync monitor which does 75hz on a custom resolution and i have no frame skipping. my problem is that sometimes there is some white pixel flashing over a black wallpaper which goes away if i lower the refrash rate or just power off/power on the monitor. what do you think is the problem? i only used nvidia custom profile for 75hz and rest of timings left automatic, i compared them with your tool and they same the same value.
can it be the cable or a hdmi limit?

HDMI cables can usually handle up to 300 MHz pixel clock no problem, so unless it's a bad cable, it's more likely a monitor limitation. The monitor probably can't quite handle the refresh rate with those timing parameters. Sometimes playing around with the timing parameters can eliminate artifacts. The timing parameters mainly control how long to wait between each line and each frame, so it's not dangerous to play around with them. Try reducing the horizontal/vertical totals. Reducing the totals will reduce the pixel clock, which reduces the bandwidth required.