Red Hat Bugzilla – Bug 986566
the last two kernel releases cause graphics troubles
Last modified: 2014-02-05 17:09:48 EST
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0
I am running fc18 on an HP machine (intel i7-3770k) with an nvidia gtx 660 card and an hp pavilion 27xi monitor. The two kernel releases after 3.9.6-200 causes the system to use the wrong resolution or aspect ratio. The login screen itself has the wrong aspect ratio, and after login the xterm windows are much too large, and seem to be of varying size. If I boot with the old kernel (3.9.6) then everything is fine - this is why I suspect the problem is in the kernel.
Steps to Reproduce:
1.boot up the computer
I boot up the computer and the aspect ratio and/or resolution of the screen is wrong.
I expect the correct resolution and aspect ratio.
Can you attach the output of:
from both a working and failing kernel?
Created attachment 776949 [details]
dmesg output from kernel with problem
Created attachment 776950 [details]
lsmod output from kernel with problem
Created attachment 776951 [details]
Xorg.0.log from kernel with problem
Created attachment 776953 [details]
dmesg output from kernel without problem
Created attachment 776954 [details]
lsmod output from kernel without problem
Created attachment 776956 [details]
Xorg.0.log from kernel without problem
Here are the six requested files.
OK. For some reason the nouveau kernel module is not being loaded on the system. If you do a manual "modprobe nouveau" and restart X do things start normally?
I am uncertain what I should do to restart X but doing a modprobe nouveau followed by rebooting doesn't change anything.
Okay, lsmod | grep nouveau shows nothing, but after modprobe nouveau it does
appear. I logout and at the login screen I select "restart x server". Now
when I login lsmod does show nouveau, but the resolution of the screen is still wrong (too low).
This seems mostly fixed now. The problem seems due to a failed attempt to install the nvidia driver. I removed one file that blacklisted nouveau, which did not seem to change things but maybe was necessary. I then deleted the file /etc/modprobe.d/nvidia-installer-disable-nouveau.conf. After doing this, when I reboot the fedora bubble in the middle of the screen is too large (as was happening when the nouveau module was not being loaded), and there is a wide horizontal stripe of dots near the top of the screen, but apart from these artifacts everything seems to be correct now.
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