Motherboard stubbornly refusing to use onboard graphics

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alexandicity

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Jul 23, 2014
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Hi!

I have a new build based on an ASRock H170M Pro4 mobo. Build went OK, as did the installation of Mint 18, which works great. I've got an AMD gpu in a PCIe slot driving the MDI monitor. But I want to remove that and use the iGPU.

However, there is a problem whenever I do anything to enable to iGPU. When I try to enable it, the video output does not appear on any of the mobo's HDMI, DVI or VGA output at all. Power seems OK (fans and disks spinning up!) and I think that the BIOS is working OK (as changes to the fan speed seem to be still applied). But no video output for love or money.

This state is "stuck" at this point, and I cannot get the video to reappear even if I revert to the discrete GPU. Clearing CMOS via jumpers seems to succeed (those fan speed changes I made disappeared), but it does not help restore the video. The only way I have found to unstick it is to pull the CMOS battery out for a few minutes, which seems a bit extreme, and revert to the discrete GPU.

This problem occurs if I do any of the following things to switch to iGPU:

  • ■ Remove the discrete GPU
    ■ Set primary display driver to iGPU in BIOS (default: PCIe)
    ■ Set multi-monitor output in BIOS (supposed to enable outputs on both iGPU and discrete GPU).

I have updated the BIOS firmware (from P2.00 to P7.00) without issue but the problem remains. I really want to run with the iGPU on this machine. The motherboard is pared with an i3-6100, which has integrated graphics. I haven't another socket 1151 mobo to discover if it's a CPU or motherboard issue...

Any ideas what I could try?
 
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J
if there is a later bios you can flash to see it may help maybe theres something up with the bios you go on it ? even if you got the latest bios try the next older as long as you don't loose any hardware support like cpu compatibility ?

I see asrock changed a few thing on there bios page

http://www.asrock.com/mb/Intel/H170M%20Pro4/?cat=Download&os=BIOS

they removed all the bios between 2.20 and 7.0 [wonder why ?? ] then at that every asrock motherboard I ever got all ways started with bios 1.10

just looking at other boards of theres I am familiar with looks like there doing this a lot also I see thy removed a lot of boards from the motherboard page [2 of mine are now gone ] z87 extreme 6 and a n68c -gs fx...
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junkeymonkey

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Nov 11, 2013
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I know this is not your issu but then you got to wonder what else ??

''Freezes/Crashes with ASRock Skylake motherboards''

https://www.linuxmint.com/rel_sarah_mate.php


'''The onboard graphics will work out of the box with this release of Ubuntu. I have not yet been able to get it working under Mint. Now if you want to read more about the journey, and some of the troubleshooting steps I took, read on! (Perhaps someone smarter than I can get the remaining steps to work)

http://dstromberg.com/2015/12/skylake-graphics-on-linux-mint-and-ubuntu/

http://unix.stackexchange.com/questions/315049/cannot-install-intel-graphics-driver-on-linux-mint-18


maybe try Ubuntu ? mint 17 was the last I used but not on a skylake ? thought 15 was better over all as well I got the latest Ubuntu dvd ready , but not yet tried it out [ran out of hard drives ]
 
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spankmon

spankmon

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Dec 31, 2011
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In the Mint 18 drivers manager, the IGPU is probably marked as disabled. Maybe enable it there, shut down the pc, switch outputs and boot up. Haven't tried this myself, so don't really know.

EDIT: Ooops. Just realized you can't even see BIOS. Please disregard my post.
 
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junkeymonkey

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i do feel even if you don't get the intel driver the os should display on generic vga driver as the normal fail safe - you may have more going on then meets the eye ??

motherboards bios by default should be AUTO for the setting for onboard pcie- card use ?? again as a fail safe setting ..
 
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atljsf

atljsf

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days ago i did the same on a amd board, the integrated refused to start, i put the video card again and discovered that bios was set to pci express slot only, not both or one or the other

check if that board has a similar option because when i set to auto, integrated gpu worked perfectly on both linux and windows
 
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alexandicity

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Jul 23, 2014
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Hi everyone - thanks for the thoughts.

Indeed - I very much doubt it has anything to do with the OS. Indeed, this problem persists when no bootable devices are attached!

I agree that the mobo should always fall back to the iGPU. It seems to be a failure if it doesn't do so - if I hadn't got a GPU, I'd be looking at a dead board! However - I'm loathe to return it as it seems like a setting somewhere or something I'm missing - as most mobo problems end up being...

I can see an option to switch to PCIe/integrated graphics as you suggest. atljsf, but if I toggle to auto or iGPU only, it causes this problem to occur and I can't get back out of it. Weirdly, a CMOS reset via the jumpers doesn't undo this - I would expect this option to restore to its default PCIe setting, and the GPU to start working again. But no - I have to actually pull the CMOS battery. If I didn't have to do that each time I'd be more comfortable playing around with the settings in the BIOS to see if it's some combination I need to achieve...
 
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atljsf

atljsf

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yes, weird to see the option refusing to restore and requiring the battery removal to get results, perhaps a bios update could help but sounds like a problem with the connectors in the mainboard or that section of the mainboard itself doing something weird

as you say, it could be a doa mainboard but is just a faulty mainboard now, consider the idea of sending it back, the warranty must help here

i don't remember if that model in particular uses the gpu on the cpu as most pcs do this days or if uses a onboard chip because the cpu doesn't have a gpu, specs page from asrock doesn't tell me much about your board gpu apart from a 170 mbs driver download from no idea who, intel, amd, nvidia or what

so perhaps we are pointing to the board and not considering the cpu here but my experience with gpu/cpu combos like this doesn't allow me to tell you that could be the cpu if that cpu has a gpu in it
 
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junkeymonkey

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if there is a later bios you can flash to see it may help maybe theres something up with the bios you go on it ? even if you got the latest bios try the next older as long as you don't loose any hardware support like cpu compatibility ?

I see asrock changed a few thing on there bios page

http://www.asrock.com/mb/Intel/H170M%20Pro4/?cat=Download&os=BIOS

they removed all the bios between 2.20 and 7.0 [wonder why ?? ] then at that every asrock motherboard I ever got all ways started with bios 1.10

just looking at other boards of theres I am familiar with looks like there doing this a lot also I see thy removed a lot of boards from the motherboard page [2 of mine are now gone ] z87 extreme 6 and a n68c -gs fx -

http://www.asrock.com/mb/index.asp?s=Current


now don't forget with intel the motherboards pci-e slot/ lanes run through the cpu unlike AMD that runs all through the chipset , so ????
 
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