Created attachment 1175461 [details] output from dmesg kernel 4.6.3-300 Description of problem: Radeon GPU support broken, default back to VESA Version-Release number of selected component (if applicable): Kernel 4.6.3-300 How reproducible: Install/update to from 4.5.7-300 to 4.6.3-300, reboot Steps to Reproduce: 1. 2. 3. Actual results: Screen resolution is 1024*768 Expected results: 1366*768 Additional info: Reboot with kernel 4.5.7-300 works ok
Created attachment 1175462 [details] output from dmesg kernel 4.5.7-300 from kernel 4.5.7-300
Kernel 4.6.4-301 has still this bug
F25 kernel 4.7.0-0 has also this bug
*** This bug has been marked as a duplicate of bug 1359415 ***
problem exist also on F25 kernel 4.8.x Latst test kernel 4.8.0-0.rc2.git3.1.fc25.x86_64
No one cares about this bug ? Is it really a bug in radeon driver or is it in kernel memory mapping ?? [ 2.885891] [drm:radeon_get_bios [radeon]] *ERROR* Unable to locate a BIOS ROM [ 2.885952] radeon 0000:01:00.0: Fatal error during GPU init [ 2.886023] [drm] radeon: finishing device. [ 2.886025] [TTM] Memory type 2 has not been initialized [ 2.893413] radeon: probe of 0000:01:00.0 failed with error -22 Knud
Seems not be at bug in radeon driver but in Kernel https://bugzilla.kernel.org/show_bug.cgi?id=175391
https://fedoraproject.org/wiki/KernelBugTriage#Video_Subsystem_bugs
Appears to be an upstream kernel bug. There's a test patch at https://bugzilla.kernel.org/show_bug.cgi?id=175391
Tested 4.8.10-fc24 KDE spin....works perfect, solves problem Suggest to close the bug Br Knud