Custom Resolution Utility (CRU)

[ToastyX]

(11-21-2020 04:41 PM)msk Wrote:  Thanks for information. I gave up with CRU but I discovered that when I connect only main monitor via DP Vram value are fine in Wattman (without any custom refresh rate) and when I connect him via HDMI Vram jump to high values. What can be reason this thing?

Look at the timing parameters. The timing parameters for HDMI are probably reduced to fit within 340 MHz pixel clock. If the vertical blanking is too low, the memory clock won't have enough time to retrain the memory without screen corruption.

[ToastyX]

(11-21-2020 03:31 PM)misumiya8 Wrote:  I want make QHD 168 hz Configuration. How should I set each value?

Use the timing options. You'll have to use a DisplayID extension block.

[ToastyX]

(11-21-2020 03:22 PM)ahmetomer Wrote:  hi i have DVI cable too. cant it do 100hz? or at least 90hz

That monitor doesn't have DVI. You would need dual-link DVI. Single-link DVI won't work, and HDMI is always single-link.

[lnxneo]

(11-21-2020 02:39 PM)ToastyX Wrote:  

(11-21-2020 04:13 AM)lnxneo Wrote:  Need some help to configure CRU.
My setup: a laptop (CPU is i5-1035G4) running Win10 -> HDMI to DisplayPort adapter -> Apple LED Cinema 27 Monitor (A1316). The computer detects the monitor, but could not make it active, monitor remains black screen.
To verify that the monitor is okay: with the same setup, except booting into Linux. the nonitor works just fine.
To verify that the "HDMI to Display Adapter" works in Win 10, I swapped out only Apple LED Cinema 27 monitor with Dell 27 monitor, everything works fine too.
What shall I change in CRU to make original setup working?

You need an HDMI data block in a CEA-861 extension block to go beyond 165 MHz pixel clock with HDMI.

Thanks ToastyX!.
Apple LED Cinema already has a CEA-861 extension block and has 2560x1440 @59.95 (241.50MHz) listed in detailed resolutions section. Anything else I could try? Thanks!

[ToastyX]

(11-21-2020 08:34 PM)lnxneo Wrote:  Apple LED Cinema already has a CEA-861 extension block and has 2560x1440 @59.95 (241.50MHz) listed in detailed resolutions section. Anything else I could try? Thanks!

Does it have an HDMI data block? The extension block by itself is not enough.

[lnxneo]

(11-21-2020 10:51 PM)ToastyX Wrote:  

(11-21-2020 08:34 PM)lnxneo Wrote:  Apple LED Cinema already has a CEA-861 extension block and has 2560x1440 @59.95 (241.50MHz) listed in detailed resolutions section. Anything else I could try? Thanks!

Does it have an HDMI data block? The extension block by itself is not enough.

Yes, It has HDMI data block.

[ToastyX]

(11-22-2020 01:07 AM)lnxneo Wrote:  Yes, It has HDMI data block.

Edit the HDMI data block, and make sure the "Override maximum pixel clock" is enabled and set to 340 MHz.

[misumiya8]

(11-21-2020 05:12 PM)ToastyX Wrote:  

(11-21-2020 03:31 PM)misumiya8 Wrote:  I want make QHD 168 hz Configuration. How should I set each value?

Use the timing options. You'll have to use a DisplayID extension block.

Thanks for the infomation. Where I can get DisplayID extension block?

[ToastyX]

(11-22-2020 02:48 AM)misumiya8 Wrote:  Thanks for the infomation. Where I can get DisplayID extension block?

Add an extension block and change the type.

[Spl_King]

Hi. Faced with such a problem. I put cru on the laptop and tried to overclock the monitor. Deleted cru and turned off the computer. In the evening I came, I connect the second monitor, but the system does not see it. More precisely, it is detected, but there is no image. Already reinstalled Windows, but there is no sense. Help