No display after disabling CSM for ReBar.(ARC A380 low profile)

[Federico2]

I have a problem with the display after the activation of rebar and disable csm.. I tried in three diferent monitors and not only does not give display also somehow the keyboard doesnst turn on the RGB lights.

But if I use a tv connected to HDMI port everything works fine.

Also if I turn off rebar, the monitor has display and everything works, in gaming the fps are lower.

Also I tried to use the display Port but is the same thing.

Can give me any advice of how to fix this?.. because that it doesnt make sense that rebar works on a tv only.

My monitors had 60hz of refresh rate , the tv has the same but it is more wider and Big.

Thanks.

[DeancR_Intel]

Hi Federico2,

Apologies for the delay in my response.

To better help you, we would like to ask for the following

• Did you make any other BIOS changes besides the CSM option?
• If CSM is enabled, does the Intel Arc graphics work as expected?
• Are you able to enter the BIOS menu when booting into the Operating System while you have CSM enabled?
• What is the Intel Arc A380 graphics card model? (Limited edition, Sparkle, Gunnir, MSI, AsRock, Acer)

This is quite a strange behavior since Intel has confirmed that the Intel Arc graphics should work with the Compatibility Support Module (CSM), as this is the recommendation when using Intel Arc A-series graphics. UEFI boot mode must be Enabled

Best regards,

Dean R.

Intel Customer Support Technician

[DeancR_Intel]

Hi Federico2,

I wanted to follow up on the previous message regarding your inquiry. Have you had a chance to review it? If you have any questions or need further information, please let me know.

Best regards,

Dean R.

Intel Customer Support Technician

[Federico2]

Hi, well after severall tries, I figure out that the problem was the monitors that I have.

I bought a new one with a resolution of 1920 x 1080 and a new cable hmdi 2.1 and it worked. But it doesnt make sense that the solution is doing exactly that.

Why with other GPU (any amd or gtx gpu) you can put any monitor and resolution and everything works fine, but with this particular intel gpu you need a newer monitor and HDMI cable and  have that kind of display specs?

My intel arc a380 is a asrock low profile 6gb. 

Thanks for the follow up. I hope this case and resolution works for other people.

[DeancR_Intel]

Hi Federico2,

I would like to ask for the model of the monitor that caused the issue to further check this.

Best regards,

Dean R.

Intel Customer Support Technician

[DeancR_Intel]

Hi Federico2,

I wanted to follow up on the previous message regarding your inquiry. Have you had a chance to review it? If you have any questions or need further information, please let me know.

Best regards,

Dean R.

Intel Customer Support Technician

[DeancR_Intel]

Hi Federico2,

Since I haven't received a response from you, I will be closing this inquiry. If you need further assistance, please submit a new question, as this thread will no longer be monitored.

Best regards,

Dean R.

Intel Customer Support Technician