27 Nov
2014
27 Nov
'14
11:52 p.m.
On Wed, 2014-11-26 at 15:33 +0100, LoneVVolf wrote: > On 26-11-14 12:00, Robbie Smith wrote: > > I am at a loss as to what the hell is going on with my laptop. It's a HP > > Pavillion with the dual AMD graphics (7520G + 7500M), and I will never > > again buy a laptop containing components from either manufacturer. > > > > More often than not when I boot, when the kernel tries to do modesetting > > the screen will just turn off. I can SSH in, so it's clearly booting up, > > but the only hint that anything unusual is happening in the logs is this > > error message: > > > >> [ 28.879834] radeon 0000:01:00.0: No connectors reported connected with modes > >> [ 28.879842] [drm] Cannot find any crtc or sizes - going 1024x768 > >> [ 28.881975] [drm] fb mappable at 0xE0474000 > >> [ 28.881978] [drm] vram apper at 0xE0000000 > >> [ 28.881980] [drm] size 3145728 > >> [ 28.881982] [drm] fb depth is 24 > >> [ 28.881985] [drm] pitch is 4096 > >> [ 28.882332] radeon 0000:01:00.0: fb1: radeondrmfb frame buffer device > >> [ 28.997034] [drm] Initialized radeon 2.40.0 20080528 for 0000:01:00.0 on minor 1 > > I feel like I've tried almost everything: > > - Upgrading and downgrading kernels (I'm currently using 3.17.1) > > - Various combinations of kernel boot parameters (fbcon=map:0, > > fbcon=map:1, radeon.modeset=1, radeon.modeset=0, etc) > > - Adding lines to /etc/X11/xorg.conf.d/20-radeon.conf that tell it which > > PCI device to map to. > > - Uninstalling and reinstalling the drivers > > > > I used to use catalyst because that was the only driver that worked, but > > as it doesn't support KMS, I couldn't use GNOME anymore, so switching > > back to that isn't an option. > > > > Searching for the problem doesn't seem to find anything relevant; > > there's a few forum posts by Ubuntu users but mostly tumbleweed. The bug > > tracker on freedesktop.org is awkward to navigate so I have no idea if > > what I'm experiencing has occurred to anyone else. Even just knowing > > where to go to report a bug or a more appropriate mailing list that > > could point me in the right direction would be helpful at this stage. > > > > The most frustrating bit is that this occurs almost at random. I could > > use the laptop all day at the library, no issues; turn it off (because > > suspend is broken on radeon), come home and no screen for what feels > > like a thousand reboots. > Robbie Smith, > > This sounds a bit like a problem a friend of mine had with a HP > Pavillion DV7 . > I assume you have an amd APU + discrete videocard combination ? > (lspci -k output would help). > > some questions / comments : > > are you using latest bios/Uefi firmware ? > > Are you sure catalyst was removed completely ? > > the entire dmesg output from a good and bad boot to console would also help. > By comparing them we might find clues about the cause of your problems. > > Lone_Wolf I've updated the gist to have a bad dmesg; I did a diff of them locally and the only changes are the time stamps, and that things are initialised in a different order (like network cards and etc).