On Wed, Dec 24, 2014 at 7:58 PM, Michel Dänzer <mic...@daenzer.net> wrote: > On 24.12.2014 22:26, Darby Vicker wrote: >> On Wed, Dec 24, 2014 at 12:50 AM, Michel Dänzer <mic...@daenzer.net> wrote: >>> On 24.12.2014 14:18, Darby Vicker wrote: >>>> On Tue, Dec 23, 2014 at 9:02 PM, Michel Dänzer <mic...@daenzer.net> wrote: >>>>> On 23.12.2014 14:11, Darby Vicker wrote: >>>>>> Hello, >>>>>> >>>>>> Sorry for the cross post but I figure this is a better place to get >>>>>> help. With the Xorg ABI update in CentOS/RHEL 6.6 [1] I can't get X >>>>>> to come up properly. More info in this thread on the CentOS list: >>>>>> >>>>>> http://lists.centos.org/pipermail/centos/2014-December/148341.html >>>>>> >>>>>> To summarize: >>>>>> >>>>>> * Stock ATI drivers shipped with CentOS crash X with a 6.6 kernel >>>>>> * fglrx drivers also crash X with a 6.6 kernel[2] >>>>>> * a centos 6.6 livecd still exibits the problem (trying to rule out an >>>>>> issue with my specific installation) >>>>>> >>>>>> I have Xorg.0.log files for boots from the 4 combinations of boots >>>>>> from a CentOS 6.5 and 6.6 kernel and the stock and fglrx drivers. >>>>>> Nothing obvious stands out to me but I could definitely be missing >>>>>> something. What's the best way to send the logs - just inline? >>>>> >>>>> Please attach the *.stock log files. >>>> >>>> Sure - attached. >>> >>> I can't see any graphics driver related problem in >>> Xorg.0.log.centos6.6.stock.gz; the X server seems to start up and shut >>> down cleanly. >>> >>> Why do you think the graphics drivers crash? Maybe the problem is on the >>> client side, e.g. related to gdm or the login manager you're using. >> >> I should be more specific about the problem. The problem occurs at >> the point where the boot splash screen transitions to when (I assume) >> X starts and the login screen comes up. When I boot the CentOS 6.6 >> kernel, the screen just goes black and shortly after that the monitor >> goes to sleep with a "No signal" message. The virtual terminals (e.g. >> cntl-alt-F2) don't work at that point either. I was assuming that >> since the Xorg ABI has changed between the CentOS 6.5 and 6.6 release, >> it was very likely that the problem was related to Xorg. > > If there was a Xorg ABI issue, you could see in the Xorg log file that > the driver fails to load. > > >> Do you have any suggestions for isolating the problem? I'm not sure what >> else to >> try. I did also try a boot to single user mode with the 6.6 kernel >> and then did a "startx". My thought was to try to start X with >> minimal other services started to see if something else was >> interfering with X. But the same thing happens - the screen goes >> blank and the monitor goes to sleep. Any other suggestions are >> welcomed. > > If you boot the 6.5 kernel, does it still work with the same userspace > that shows the problem with the 6.6 kernel? If so, it sounds like > there's just some regression in the 6.6 kernel. Maybe there's something > in dmesg, or maybe you can try isolating the change between the 6.5 and > 6.6 kernels which caused the regression. > > > -- > Earthling Michel Dänzer | http://www.amd.com > Libre software enthusiast | Mesa and X developer
dmesg output attached for both. These are the differences that stand out to me: 1) Its allocating a different amount of memory. 1005c974 < radeon 0000:00:01.0: GTT: 512M 0x0000000020000000 - 0x000000003FFFFFFF --- > radeon 0000:00:01.0: GTT: 1024M 0x0000000020000000 - 0x000000005FFFFFFF 2) different driver version 1060,1062c1040,1042 < [drm] Initialized radeon 2.30.0 20080528 for 0000:00:01.0 on minor 0 --- > [drm] Initialized radeon 2.37.0 20080528 for 0000:00:01.0 on minor 0 I'd be interested in your take on this though.
dmesg.centos6.5.gz
Description: GNU Zip compressed data
dmesg.centos6.6.gz
Description: GNU Zip compressed data
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