Arch Linux

abelsiqueira

Member

From: Brazil

Registered: 2010-08-30

Posts: 3

Monitor problem after upgrade to kernel 2.6.36.1-3

After upgrading to new kernel, my monitor "true size" is not recognized. What I mean is that everything is scaled down towards the center of the screen. It is as if my monitor was 2 inches smaller.

The problem starts a little after grub, when some checks are made. Both the tty and the Window Manager are wrong. My resolution (xdpyinfo | grep dimensions) is correct.

This is solved after downgrade to kernel 2.6.35.8-1, but I'd rather not.

I'm using xf86-video-ati, xf86-video-fbdev, and xf86-video-vesa.

Thanks for your help
Abel

thepizzaking

Member

From: Melbourne, Victoria, Australia

Registered: 2006-03-13

Posts: 46

Re: Monitor problem after upgrade to kernel 2.6.36.1-3

I had the same problem, apparently the new kernel defaults to using underscan.  You can fix it temporarily by running:

xrandr --output DVI-0 --set underscan off

where DVI-0 is the device your monitor is connected to.  I haven't found a solution that lasts a reboot yet though.

thestinger

Package Maintainer (PM)

From: Toronto, Canada

Registered: 2010-01-23

Posts: 478

Re: Monitor problem after upgrade to kernel 2.6.36.1-3

Apparently you can't set it via a kernel line option (yet)...

http://www.phoronix.com/forums/showthread.php?t=26532

abelsiqueira

Member

From: Brazil

Registered: 2010-08-30

Posts: 3

Re: Monitor problem after upgrade to kernel 2.6.36.1-3

Thanks, it worked. Hope someone finds a solution at boot.

Temporarily I added the line to my .xinitrc, right before the call to the Window Manager, and it's working.

Thank you,
Abel