Enabling framebuffer on a CentOS 7?
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Enabling framebuffer on a CentOS 7?
I'm looking into how to enable /dev/fb0 on CentOS 7 for a virtual machine (ie, a Linode VPS) for headless TeamViewer support. It appears that this needs to be enabled via enabling a particular kernel module and Linode has recommended that this is just a matter of installing the correct CentOS kernel package, but has not further specific instructions.
What's the proper way to enable the frame buffer on CentOS 7?
What's the proper way to enable the frame buffer on CentOS 7?
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Re: Enabling framebuffer on a CentOS 7?
Doing a little more digging, I'm getting to the point where I'm wondering if I won't have to compile my own kernel to accomplish this. That's not preferable since it would benefit a lot more folks if a simple kernel package were installable and so I'm hoping for a bit simpler and cleaner option.
Re: Enabling framebuffer on a CentOS 7?
Which option?
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
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Re: Enabling framebuffer on a CentOS 7?
Meaning a precompiled option that can be `yum install`able vs compilation.
Re: Enabling framebuffer on a CentOS 7?
I mean which option is it?
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
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Re: Enabling framebuffer on a CentOS 7?
It may be `vesafb` or `fbdev`. I've not found a clear answer for kernel 3.x and above:
• https://en.wikipedia.org/wiki/Linux_framebuffer
• http://www.tldp.org/HOWTO/html_single/F ... fer-HOWTO/
This gave me some concern:
https://lkml.org/lkml/2015/9/24/253
-> https://en.wikipedia.org/wiki/Direct_Rendering_Manager
So it appears that fbdev is / has been or is being replaced, but the question is begged: what about those of us who need the framebuffer still for headless operation?
• https://en.wikipedia.org/wiki/Linux_framebuffer
• http://www.tldp.org/HOWTO/html_single/F ... fer-HOWTO/
This gave me some concern:
https://lkml.org/lkml/2015/9/24/253
-> https://en.wikipedia.org/wiki/Direct_Rendering_Manager
So it appears that fbdev is / has been or is being replaced, but the question is begged: what about those of us who need the framebuffer still for headless operation?
Re: Enabling framebuffer on a CentOS 7?
It should already be set: grep CONFIG_FB_ /boot/config-3.10.0-693.2.2.el7.x86_64 for example.
I believe it gets disabled if you're using an incompatible video driver so perhaps look at that and also in dmesg
I believe it gets disabled if you're using an incompatible video driver so perhaps look at that and also in dmesg
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
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- Joined: 2017/09/20 23:12:53
Re: Enabling framebuffer on a CentOS 7?
Interesting, so since Linode VPS systems operate on a KVM host, are you aware of a potential match for the video driver issue? This is interesting:
https://www.phoronix.com/scan.php?page= ... &px=OTM0Nw
So we would need perhaps `qemu-kvm` or the Gallium3D Xen driver...? Hmmm...
https://www.phoronix.com/scan.php?page= ... &px=OTM0Nw
So we would need perhaps `qemu-kvm` or the Gallium3D Xen driver...? Hmmm...
Re: Enabling framebuffer on a CentOS 7?
Linode often use their own kernels - what's the output of uname -a ?
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
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- Posts: 14
- Joined: 2017/09/20 23:12:53
Re: Enabling framebuffer on a CentOS 7?
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Linux hostname.domain.tld 4.9.36-x86_64-linode85 #1 SMP Thu Jul 6 15:31:23 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux