Created attachment 845810 [details] /var/log/Xorg.0.log for Fedora 20 Description of problem: The GDM login screen only shows a couple of rectangles along with the mouse pointer. This appears to be a nouveau problem. I can log in to a text console after typing CTRL-ALT-F2. I can return to the odd GDM screen with CTRL-ALT-F1. I can log in via GDM by typing blind. The resulting (default Gnome) desktop shows up as a few different rectangles. By using nomodeset, I can use the computer with the VESA driver. But it is quite slow and cannot support the display's native resolution. Version-Release number of selected component (if applicable): xorg-x11-drv-nouveau-1.0.9-2.fc20.x86_64 OS: Fedora 20 x86_64 + updates. Computer: HP Pavilion zv5000, AMD 64-bit processor, GeForce4 440 Go 64M display controller. How reproducible: 100% Steps to Reproduce: 1. Install Fedora 20 (noacpi and nomodeset needed) 2. do updates 3. get rid of noacpi and nomodeset from kernel parameters in grub configuration 4. boot Actual results: GDM screen with a few rectangles and a mouse pointer and nothing else Expected results: normal GDM screen Additional info: This is like Bug 891954 "[NV17] GNOME shell unusable with nouveau driver" but that was reported against Fedora 18 and is about to be closed WONTFIX. Fedora 11 continues to run on this hardware, and its nouveau works.
Created attachment 845811 [details] /var/log/Xorg.0.log from Fedora 11 (which works)
Created attachment 845812 [details] dmesg output from Fedra 20
Created attachment 845897 [details] Xorg.0.log for run with kernel parameter "nouveau.noaccel=1" When I add the kernel parameter "nouveau.noaccel=1" (and leave out "nomodeset"), the nouveau driver works. Unfortunately, the gnome desktop is very very slow this way. I wonder if that is related to these lines in the Xorg.0.log: [ 44.218] (II) AIGLX: Loaded and initialized swrast [ 44.218] (II) GLX: Initialized DRISWRAST GL provider for screen 0 Are there any other experiments I should perform?
Using "nouveau.agpmode=0" does not fix the problem.
I found I could only get nouveau to load with acpi=ht on the kernel command lie in grub. Can you try that?
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Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.