A Tale of three machines.

poma pomidorabelisima at gmail.com
Mon Apr 7 18:03:21 UTC 2014

On 07.04.2014 13:45, poma wrote:
> On 07.04.2014 12:27, Chuck Forsberg WA7KGX wrote:
>> An I7-3770K runs in 3.15 text mode but immediately freezes when
>> X is started.  Anaconda 21.31-1 works but in rather low resolution.
>> I tried it without the Nvidia card, using the on chip Intel gaphics
>> and got the same freeze.
> With a debug kernels, if you don't test the video modules per se,
> /etc/X11/xorg.conf
> Section "Device"
> 	Identifier	"video0"
> 	Driver		"modesetting"
> EndSection
> is a must-have.
> Check for yourself a "Stats for nerds"/dropped frames with 1280/1920 on
> YouTube. Within the Xfce of course. :)
> Point is the '[xorg-x11-drv-]modesetting' ain't "accelerated", and this
> is what pulls down the "real" modules as 'nouveau' & Co., within a debug
> kernels.


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Section "Device"
	Identifier	"Videocard0"
	Driver	"modesetting"

Current Operating System: Linux localhost
3.15.0-0.rc0.git9.1.fc21.x86_64 #1 SMP Thu Apr 3 20:11:16 UTC 2014 x86_64
Kernel command line: initrd=initrd0.img
root=live:CDLABEL=Fedora-Live-Xfce-x86_64-rawhide- rootfstype=auto ro
rd.live.image rd.luks=0 rd.md=0 rd.dm=0 xdriver=modesetting
Build ID: xorg-x11-server 1.15.0-5.fc21
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(**) |   |-->Device "Videocard0"
(II) LoadModule: "modesetting"
(II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
(II) modesetting: Driver for Modesetting Kernel Drivers: kms
(++) using VT number 1
(II) modesetting(0): using drv /dev/dri/card0



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