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The screen resolution is locked after update to fedora 20

asked 2013-12-18 22:51:42 -0500

HermitHuang gravatar image

updated 2014-02-13 13:46:59 -0500

mether gravatar image

hi all:

I have a pc used fedora 19, and yesterday i updated the os to fedora 20 by fedup.

All things seem OK but the screen resolution is 1024x768 in Gnome Desktop and i can't change it. only one option in the Settings->Display. xrandr command also shows only 1024x768

When i use fedora 19, its 1600x900. my video card is AMD Radeon HD 6850 and cpu is i5-3470.

Anyone has any ideas? I will try all suggestions. Thank YOU

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> Did you use catalyst on Fedora 19 ?

No, I have not used catalyst because it couldn't support for the latest kernel version and I always update. all are default.

And i'm not sure which video driver is being using now. how can i know this?

HermitHuang gravatar imageHermitHuang ( 2013-12-19 09:07:52 -0500 )edit

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answered 2013-12-20 06:42:51 -0500

HermitHuang gravatar image

finally I solve this problem. I think its because of a problem of X.

I tried to edit the /etc/X11/xorg.conf and I find out there isn't this file. So i use "Xorg :1 -configure" to make a xorg.conf.new and cp it to /etc/X11/xorg.conf.

I restart the pc, and the resolution goes OK! maybe there are something wrong in the X start process without the xorg.conf file. but in Fedora 19, works OK without it.

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answered 2013-12-19 02:25:28 -0500

Mosaab Alzoubi gravatar image

Did you use catalyst on Fedora 19 ?

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Asked: 2013-12-18 22:51:42 -0500

Seen: 4,993 times

Last updated: Dec 20 '13