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FrancisGreaves
n00b
Joined: 31 Oct 2014
Posts: 61
Location: Ireland
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 Posted: Tue Jun 19, 2018 1:31 pm Post subject: How to replace uvesafb in the kernel for console resolution |
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Now that uvesafb has gone I am trying to get my console to be a particular resolution of 2560x1440 and have a theme.
One of my old Viewsonic dual Monitors died, so I got a nice Samsung monitor with a maximum resolution of 3840x2160 which gives unbelievably small text!
I use Lilo as the boot loader
My Grahpiocs card is an AMD Radeon RX470 and I am using the amdgpu drivers in the kernel
I used to have a kernel 4.12.12 with the command of
| Code: | | video=uvesafb:1024x768-32,mtrr:3,ywrap splash=verbose,fadein,theme:emergence console=tty1 |
to set up the old monitor.
This of course does not work now.
I use xranrd to set the resolution for Openbox, which works perefectly.
If I use the vga command to set the resolution in /etc/lilo.conf that is quickly overridden as the kernel loads and uses the maximum resolution it can at 3840x2160.
I have searched the Forum, and looked here http://distro.ibiblio.org/fatdog/web/faqs/boot-options.html and here https://www.kernel.org/doc/Documentation/fb/
I have tried
| Code: | | video=DVI-D:2560x1440-32@59 console=tty1 |
on the kernel command line, but it does not set the correct resolution, and there is nothing in dmesg about it.
If I try and set the theme from the command line as in:
| Code: | splash_manager -c set --theme=natural_gentoo --tty=1
Error: Theme 'natural_gentoo' doesn't seem to provide a config file for the current resolution (3840x2160). |
Does anyone know how I can set the resolution, so I can then add the theme?
Regards
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54208
Location: 56N 3W
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| Posted: Tue Jun 19, 2018 1:45 pm Post subject: |
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FrancisGreaves,
Try | Code: | | video=amdgpudrmfb:1024x768-32,mtrr:3,ywrap splash=verbose,fadein,theme:emergence console=tty1 |
amdgpudrmfb is the name of the framebuffer you want the video statement to apply to.
My dmesg says | Code: | [ 2.417567] Console: switching to colour frame buffer device 480x135
[ 2.450317] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device |
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NeddySeagoon
Computer users fall into two groups:-
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FrancisGreaves
n00b
Joined: 31 Oct 2014
Posts: 61
Location: Ireland
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| Posted: Tue Jun 19, 2018 5:02 pm Post subject: |
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Thanks for the prompt reply, NeddySeagoon.
I am not having much luck. Have tried your suggestion, and my console is still at 3840x2160
| Code: | dmesg | grep frame
[ 2.512524] vesafb: framebuffer at 0xe0000000, mapped to 0xffffc90000400000, using 3072k, total 49152k
[ 2.528026] Console: switching to colour frame buffer device 128x48
[ 2.543720] fb0: VESA VGA frame buffer device
[ 4.016589] Console: switching to colour frame buffer device 480x135
[ 4.341892] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
[ 9.031786] r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
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I have set vga=791 in my /etc/lilo.conf file and the video= in the append section
What can I look for now?
Thanks
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NeddySeagoon
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Joined: 05 Jul 2003
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Location: 56N 3W
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| Posted: Tue Jun 19, 2018 5:23 pm Post subject: |
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FrancisGreaves,
Did you mount boot and run /sbin/lilo ?
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NeddySeagoon
Computer users fall into two groups:-
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FrancisGreaves
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Joined: 31 Oct 2014
Posts: 61
Location: Ireland
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| Posted: Tue Jun 19, 2018 5:39 pm Post subject: |
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yes, I did.
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FrancisGreaves
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Joined: 31 Oct 2014
Posts: 61
Location: Ireland
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| Posted: Tue Jun 19, 2018 5:42 pm Post subject: |
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here is the kernel command line
| Code: | cat /proc/cmdline
auto BOOT_IMAGE=4.14.8-gentoo ro root=UUID=6f5fbc46-7a5b-4354-8649-706e7728160f nodmraid domdadm real_root=UUID=6f5fbc46-7a5b-4354-8649-706e7728160f rootfstype=ext4 video=amdgpudrmfb:1024x768-32,mtrr:3,ywrap splash=verbose,fadein,theme:emergence console=tty1 crashkernel=64M nokaslr
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Ant P.
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Joined: 18 Apr 2009
Posts: 6920
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| Posted: Tue Jun 19, 2018 8:36 pm Post subject: |
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| Compile in a larger kernel font instead? |
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Kernel & Hardware
