Modesetting failure with kernel 3.15; ok with kernel 3.14

Clyde E. Kunkel clydekunkel7734 at
Thu Apr 17 20:20:55 UTC 2014

On Thu, 17 Apr 2014 13:26:26 -0500
Steven Usdansky <usdanskys at> wrote:

> Not sure where to report this problem (or what I should be looking
> for), but when booting any of the 3.15 kernels, kernel-modesetting
> fails and X comes up with a resolution of  1024x768, rather than the
> 1680x1050 resolution specified in my xorg.conf file. xorg.conf is
> necessary because my monitor does not emit a proper EDID.
> ~$ uname -r
> kernel-3.15.0-0.rc1.git1.1.fc21.x86_64
> ~$ lspci | grep 9100
> 02:00.0 VGA compatible controller: NVIDIA Corporation C78 [GeForce
> 9100] (rev a2)
> Reverting to kernel -3.13.7-200.fc20.x86_64 avoids the problem (and
> problems I've been having with firefox-28 locking up with 3.14
> kernels).
> --
> RockDoctor

I have a similar problem in rawhide with 3.15 kernels not allowing the
desktop to load. 3.14 kernels are fine. However my graphics card is:
$ lspci | grep -i vga
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] RV630 PRO [Radeon HD 2600 PRO]

In another thread there is a suggestion to remove all plymouth modules
which I haven't tried.

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