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M95D
n00b
Joined: 03 Jan 2020
Posts: 52
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 Posted: Thu Mar 07, 2024 10:42 am Post subject: Xorg configuration for multiple systems (bootable stick) |
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Hi.
I run Gentoo from a USB strick. I run it on multiple systems. Each one has a different GPU: nouveau (GTX 970), intel (945GM), radeon (HD 3000).
I need to set the Xorg "Option TearFree On" on each one of them because the default is off and scrolling in OpenTTD looks really bad without it.
How do I do that, so that it works on all systems?
What I tried so far:
I tried creating a file in /etc/X11/xorg.conf.d/ for each GPU with this contents (driver and profile name matching each xorg gpu driver):
| Code: |
Section "Device"
Driver "intel"
Identifier "Intel"
Option "TearFree" "on"
EndSection
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The result was that X no longer starts on intel and nouveau systems, but works fine on radeon.
While running on intel system, I tried removing the other two config files (nouveau and radeon). In this case, X runs OK, but it doesn't start on the other two system and I find it too difficult to move config files around each time I boot the stick on a different system.
I tried to use the modesetting driver only. That one works on all systems. I am concerned that it doesn't support 3D hardware acceleration and/or video acceleration. I don't know how to test myself and the internet is full of outdated and conflicting info about this.
Thank you. |
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C5ace
Guru
Joined: 23 Dec 2013
Posts: 472
Location: Brisbane, Australia
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| Posted: Fri Mar 08, 2024 12:45 am Post subject: |
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I have a USB hdd with Gentoo with xfce installed for Rescue and Backup purposes use with several desktop and laptop PC's. All BIOS boot.
The kernel is build with "genkernel all" using standard gentoo-sources. Video driver is only VESA. This works with on all laptops and desktops without changes. To boot, I just plug in the USB drive and select the boot drive by pressing ESC, F9, or whatever is necessary for the individual PC.
This also works with USB stick but is extremely slow.
_________________
Observation after 30 years working with computers:
All software has known and unknown bugs and vulnerabilities. Especially software written in complex, unstable and object oriented languages such as perl, python, C++, C#, Rust and the likes. |
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