ASUS Prime B250-Plus Graphics card no output

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A

alsolovyov1337

Prominent
Jan 28, 2018
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Hi everyone

I have just built a new PC with following hardware:
CPU: Intel Core i5-7400,
MoBo: ASUS Prime B250 Plus,
RAM: Corsair Vengeance LPX (CMK16GX4M2A2400C16),
GPU: Gigabyte Gtx 1050
PSU: Zalman ZW-500 GS2.

However, I don't get any output from the graphics card. So far I have tried the following:
- switched mobo pci-e slots
- switched the primary GPU in BIOS (still it gets reverted to CPU graphics).

My OS (Linux Mint 18.3 Sylvia) is able to detect the GPU and it has installed some software for it. The software says there is some slight load on the GPU and some memory used. This seems true as the card temperature gradually rises (and the fans start at some point).

I have a Dell E2318H monitor connected via DisplayPort. I have no other monitor to try at this point, however.

Any ideas on what the problem can be? Thanks in advace
 
Solution
A
Finally, the solution.
The problem was with Compatibility Support Mode enabled in Boot section of my UEFI (wut?). After disabling the option I was able to change the primary display to PCIE. Now, the video goes right there where it should.
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Right after the installation the OS asked to install drivers and tools for nVidia graphics card so now I have proprietary driver installed. The tool shows some strange stuff like the GPU being slightly used ( ~ 5% ) and some memory there gets utilized (about 10%).

lshw shows 2 VGA compatible controllers - NVIDIA and Intel.

NVIDIA Driver Version: 384.111

xorg.conf reads as follows:
Code: 
Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "intel"
    Driver "modesetting"
    BusID "PCI:0@0:2:0"
    Option "AccelMethod" "None"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "PCI:1@0:0:0"
    Option "ConstrainCursor" "off"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
    Option "AllowEmptyInitialConfiguration" "on"
    Option "IgnoreDisplayDevices" "CRT"
EndSection
 
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Perhaps you need to disable onboard graphics in the BIOS.
 
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I have not used Mint a lot so i'm not sure what else to suggest. You would probably get better answers in the Linux Mint Forum / Hardware Support.

https://forums.linuxmint.com/
 
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I guess it's not mint's fault as I have started with no OS by default and got nothing from NVIDIA. With Mint installed I could check that the device is up and running. Though, providing no output, so I guess it's not Mint's fault.
Anyway, thanks for your advice
 
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Finally, the solution.
The problem was with Compatibility Support Mode enabled in Boot section of my UEFI (wut?). After disabling the option I was able to change the primary display to PCIE. Now, the video goes right there where it should.
 
Upvote 0 Downvote
Solution
Good to hear you've found the fix. I remember Compatibility Support Mode and Secure Boot were a big issue in the Linux community when the new UEFI bios was first introduced. Many people were afraid they would no longer be able to install Linux on a prebuilt Windows computer, it would be locked out by the firmware.
 
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