Since last summer/June I have not been able to use current kernels because I have been experiencing regression with the display on my PowerBook TI Radeon Mobility (M6). The last working kernel I can switch from X (GDM and session) to console and back without any problems was kernel 2.6.11.9. I have been downloading the vanilla kernels from kernel.org and compiling them my self and each one has the same issues. Today I picked up a new kernel from http://rsync.ppckernel.org/ and rsync to that kernel. Then I took the old 2.6.12.2 kernel config from http://www.ppckernel.org/specialized.php and did a make oldconfig to the updated one and I still get the same issues.
I have noticed that Jesus Climent had the same issue back on June 3 of last year. On Fri, 2005-06-03 at 08:43 +0200, Jesus Climent wrote: > Hi > > I am experiencing a regression with 2.6.12-rc5 under my iBook G3 2.2. > > The problems are as follows: > > 1. When switching from console to X, the X picture is redrawn color layer by > color layer, like an old 3d modeling program, recalculating the surfaces and > showing them as they are calculated. It takes around 1 second or 2 to get the > screen back. > > 2. When the screen dims to level 0, i am not able to recover it back. To the > point that blindly one i posted my root passwd on an open irc session i did > not remember having on one of the VTs. So the computer is on and works, but > the screen level is set to 0 and never recover. A sleep cycle does not help. > > Has there been any work around on the bug as Ben had mentioned? Benjamin Herrenschmidt wrote: > >Hrm... The actual "delay" thing is to work around a chip bug on M6 >chips. ATI didn't give me a better workaround than stuffing a delay >after each PLL register accesses which can be a bit slow. > >Regarding the LCD, that's a bit more annoying... You tried I suppose >playing with the backlight control keys etc... it just doesn't come back >at all ? Hrm... I just never manage to get a proper sequence of >backlight control that works for everybody it seems. When fixing some >models, I break others.... > >I'll try to come up with a patch for you after 2.6.12 is out, it's too >late for 2.6.12 itself unfortunately. Please remind me if you don't hear >from me again on this matter. > >Ben. > > I have not been able to find any solutions on the lists and I am seeking any help because I would love to update my kernel. I am very perplexed. -Adam -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
