Custom Resolution Utility (CRU)

[MaKneeTore]

(08-28-2020 03:42 PM)vigan1 Wrote:  First tell me what is the brand and model of you laptop. To see if you have the correct drivers, and try updating your bios.
If everything fail, you should find an option in the bios called :
Compatibility Support Module (CSM)
For me it was under ADVANCED > Compatibility Support Module (CSM).
Activate this option (it should be on by default I think) and you should see :

USB (Legacy or UEFI)
Video (Legacy / UEFI)
storage (Legacy / UEFI)

I simply selected "Legacy" under Video, and restarted.
All bios are different and some bios are completely locked, so it may not be here.

Ok. I have a new Samsung Galaxy Book Flex Alpha - US version, i7 CPU and Intel UHD graphics. It seems I cannot use CRU tool because this CPU is too new, unless I'm misunderstanding something.

It seems the reason that Linux might work at 1440p@60Hz and Windows does not is because the pixel clock is locked in Windows 10, but not in Linux. This is my best guess, anyway.

Sadly, my BIOS is up to date and I don't have these options.... not sure what to do from here besides buy a USB-C to some other video port and hope for the best. Quite dissapointing.

[vigan1]

Sorry.
Sometime it's under Boot configuration, there is a csm enable.

Also it may be because you have Scaling ON check under Display Properties > DPI and set it to 100% under windows.

[lazlo]

Hey, if I use CRU and set a custom resolution to 1280x960 and start csgo everything works fine. I tried to stream via obs and the game capture option only gives me a black screen. With CRU settings set to default and a standard resolution I dont get a black screen. Do you know any workaround so I can stream while using CRU?

Big thanks in advance.

[zestyphresh]

Just after a bit of advice on the settings I need to look at for adjusting the vertical position of the displayed screen.

I'm using a vertically mounted TV in an arcade machine with a custom resolution of 1080(W) x 1286 (H), centered. When fitting the TV it is just slightly too low and i'm trying to work out if I can shift the displayed screen up, probably by no more than 10-15 pixels.

If anyone can point me to which settings I should be adjusting (I can copy the timings for the resolution from the Radeon software) that would be great.

[ToastyX]

(09-05-2020 09:04 AM)zestyphresh Wrote:  Just after a bit of advice on the settings I need to look at for adjusting the vertical position of the displayed screen.

I'm using a vertically mounted TV in an arcade machine with a custom resolution of 1080(W) x 1286 (H), centered. When fitting the TV it is just slightly too low and i'm trying to work out if I can shift the displayed screen up, probably by no more than 10-15 pixels.

If anyone can point me to which settings I should be adjusting (I can copy the timings for the resolution from the Radeon software) that would be great.

Is this a CRT TV or LCD/OLED TV? If it's a CRT, reduce the vertical back porch and increase the vertical front porch by the same amount to move the image up. If it's an LCD/OLED TV, there's no way to shift the image with the timing parameters.

[zestyphresh]

(09-05-2020 04:49 PM)ToastyX Wrote:  Is this a CRT TV or LCD/OLED TV? If it's a CRT, reduce the vertical back porch and increase the vertical front porch by the same amount to move the image up. If it's an LCD/OLED TV, there's no way to shift the image with the timing parameters.

It's a plasma screen but I assume the latter applies still. Looks like it will be a more 'manual' adjustment!

Appreciate the quick response.

[zanac]

Hi,

i'm interested to buy an i7 "Comet Lake-U" with integrated video card... and i need to use it with a custom 2560x240p (15 khz arcade resolution).
For now the only way to use this resolution in intel video card was to use Linux in which i can force it.... but i just discovered CRU. Does it will work with recent intel video card like Linux?
Can i convert a linux modeline to CRU parameters?

let me know before to buy the new PC

thank in advance,
regards,

[myhrmans]

Hey. What is causing me not being able to set 172 as a value for Front Porch here?

[ToastyX]

(09-10-2020 11:05 AM)myhrmans Wrote:  Hey. What is causing me not being able to set 172 as a value for Front Porch here?

EDID limit is 63. Either change the back porch instead, or use a DisplayID extension block.

[ToastyX]

(09-09-2020 08:35 AM)zanac Wrote:  i'm interested to buy an i7 "Comet Lake-U" with integrated video card... and i need to use it with a custom 2560x240p (15 khz arcade resolution).
For now the only way to use this resolution in intel video card was to use Linux in which i can force it.... but i just discovered CRU. Does it will work with recent intel video card like Linux?
Can i convert a linux modeline to CRU parameters?

let me know before to buy the new PC

CRU should work with newer Intel GPUs, but some people have had trouble for some reason, mainly with laptops. Also, Windows will not list any resolutions below 480p, so I don't know if the driver will allow 2560x240p or not. I don't know what limitations Intel's driver has.

Linux modelines are just the timing parameters added together, so 1080 1081 1084 1089 is 1080 1 3 5 in CRU.