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#1 2010-11-27 19:41:49

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

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#2 2010-11-27 23:47:52

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.

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#3 2010-11-27 23:55:17

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

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#4 2010-11-28 00:07:50

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

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