On Mon, Jan 5, 2015 at 9:13 PM, Michel Dänzer <[email protected]> wrote: > On 06.01.2015 12:03, Darby Vicker wrote: >> On Sat, Jan 3, 2015 at 11:10 PM, Darby Vicker <[email protected]> wrote: >>> On Wed, Dec 24, 2014 at 7:58 PM, Michel Dänzer <[email protected]> wrote: >>>> On 24.12.2014 22:26, Darby Vicker wrote: >>>>> On Wed, Dec 24, 2014 at 12:50 AM, Michel Dänzer <[email protected]> >>>>> wrote: >>>>>> On 24.12.2014 14:18, Darby Vicker wrote: >>>>>>> On Tue, Dec 23, 2014 at 9:02 PM, Michel Dänzer <[email protected]> >>>>>>> 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. > > [...] > >> Do you know if there is a way to bypass gdm to see if that is the >> problem? For example, is there an alternative to GDM or some way to >> try to start the X-session directly? > > You can log into console and start X via startx or xinit. > > However, it sounds like a kernel change at least triggers the problem. > You should probably get in touch with the people maintaining the CentOS > kernel, they should be able to help you isolate which change that is. > > > -- > Earthling Michel Dänzer | http://www.amd.com > Libre software enthusiast | Mesa and X developer
Good point, I've actually already done that. I booted into single user mode and did a startx - something still goes wrong (the screen goes blank and the monitor then goes to sleep). I'll try to see if the CentOS/RHEL kernel maintainers can help. Thanks. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
