--- On Wed, 8/8/12, Michel Dänzer <daen...@debian.org> wrote: > > > > I heard that this handover from OFfb to radeon KMS can > cause problems in > > some cases. Maybe you can try adding video=offb:off to > > video=radeonfb:off . > > BTW, does the black screen occur only when X starts, or > already when KMS > takes over from OFfb, which according to the above happens > about 10 > seconds after the kernel starts booting?
The black screen happens about 10 seconds after boot starts when the line appears onscreen: fb: conflicting fb...(it didn't give me time to read the rest, but I assume it's "fb: conflicting fb hw usage radeondrmfb vs OFfb ATY,Fall_A - removing generic driver"). Just to be clear about the symptoms, the screen is still lit, it's just colored black and there's nothing visible. Then when X starts in the boot process, the screen goes dark for a second as if it's powered off, then comes on again to a lit but black screen, then after another second switches to a slightly lower brightness level. When I switch to a console, something similar happens. Also, I can change the brightness of the black screen with the iBook's brightness keys. I added video=offb:off to video=radeonfb:off like you suggested but got the same result. I also added video=1024x768-24@60, but that made no difference either. In better news, I was able to work blindly and bring up an xterm window and typed "glxinfo | grep render > ~/glxinfo.txt" and then boot with no yaboot parameters to get back into a GUI, where the content of glxinfo.txt was: direct rendering: Yes OpenGL renderer string: Mesa DRI R100 (RV100 4C59) PowerPC NO-TCL DRI2 So there's that:) -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1344514266.4253.yahoomailclas...@web140801.mail.bf1.yahoo.com
