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dandennison84
n00b
Joined: 07 Feb 2013
Posts: 34
Location: Omaha, NE
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 Posted: Tue Aug 08, 2023 5:06 pm Post subject: [SOLVED] Dual monitor setup/Dual Video (Nvidia) |
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Hello again. Continuing on my gentoo journey, I have a new problem to solve. I have a second monitor I connect via HDMI when I'm at my desk. My first issue to solve is an xrandr problem. When I run startx, I have a call to xrandr for my 2 monitors in xinitrc before I run awesomewm. It never works. If I run the same xrandr command on the command line, it does work, but only if I run the command twice. Go figure.
Last edited by dandennison84 on Wed Aug 09, 2023 9:54 pm; edited 2 times in total |
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dandennison84
n00b
Joined: 07 Feb 2013
Posts: 34
Location: Omaha, NE
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| Posted: Wed Aug 09, 2023 3:52 pm Post subject: |
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So a bit more research got me a solution. My problem is Nvidia's optimus technology for 2 graphics card. I disabled it in bios and now both monitors work!
| Code: |
lspci
00:02.0 VGA compatible controller: Intel Corporation TigerLake-H GT1 [UHD Graphics] (rev 01)
01:00.0 VGA compatible controller: NVIDIA Corporation GA104M [GeForce RTX 3070 Mobile / Max-Q] (rev a1)
xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x49 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 7 associated providers: 1 name:modesetting
Provider 1: id: 0x274 cap: 0x2, Sink Output crtcs: 4 outputs: 6 associated providers: 1 name:NVIDIA-G0
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My setup also has BIOS settings for nvidia optimus as well. Basically it allows switching between the 2 video cards automatically. Other info on my system: Awesome WM running picom for transparency, desktop profile, originally nouveau and i915 set for VIDEO_CARDs.
My problem. I have an HDMI monitor that I hook up from time to time. Works on fine on Windows, did not work out-of-the-box in my nouveau setup.
Configuration 1: Nouveau with BIOS Optimus enabled. No amount of fiddling gave me a fuinctioning 2nd monitor. Transparency works.
Configuration 2: Nouveau with BIOS Optimus disabled. Both monitors work perfectly. Transparency no longer works.
Configuration 3: Nvidia with BIOS Optimus disabled. Booting freezes and black screen only. Not functional.
Configuration 4: Nvidia with BIOS Optimus enabled: Functioning 2nd monitor. Transparency works.
Config 4 works but it was a lot more work. Swapping out from nouveau to nvidia was not trivial. Had to go into the live CD a few times to get it working. |
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