Arch Linux

lula

Member

Registered: 2009-07-16

Posts: 71

[Solved]Resolution on ttys with external monitor (intel kms)

After upgrading to kernel 2.6.32 i get a wrong resolution on ttys. Before 2.6.32 the boot messages were displayed just on the internal display at the right resolution (1280x800), now they are on both screens with 800x600. The external monitor is a 19" Samsung SyncMaster attached to a D-Link kvm switch. If the ext. monitor is attached directly the resolution on both displays is 1280x800. The wiki says to remove any vga or video option from the bootloader. The only way to get the right resolution is to detach the ext. monitor, boot to runlevel 3 and then attach the monitor. Is there any method to force a resolution on ttys with kms enabled?
Thanks,
Lutz

Last edited by lula (2010-01-01 15:28:17)

anrxc

Member

From: Croatia

Registered: 2008-03-22

Posts: 835

Website

Re: [Solved]Resolution on ttys with external monitor (intel kms)

Is there any method to force a resolution on ttys with kms enabled?

Sure, you can append the video option in your boot loader configuration, for example:

video=VGA-1:1280x1024

See this Linux commit for more information: http://git.kernel.org/?p=linux/kernel/g … =d50ba256b

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You need to install an RTFM interface.

lula

Member

Registered: 2009-07-16

Posts: 71

Re: [Solved]Resolution on ttys with external monitor (intel kms)

Thanks anrxc,

video=VGA-1:1280x1024

did it, i now get 1280x800 on both screens. I still don't understand why it's 1280x1024 and not 1280x800 in grub, but it looks very good now.

Again thank you and a happy new year,
Lutz