Messages in this thread | | | Date | Mon, 5 Jul 2010 21:52:20 -0400 | From | Wakko Warner <> | Subject | Re: Radeon KMS doesn't work. |
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Justin P. Mattock wrote: > On 07/05/2010 10:27 AM, Marvin wrote: > > > >Hi Wakko, > > > >as nobody seems to have answered yet, I think it's better that you file a > >bug > >against the radeon driver (bugs.freedesktop.org, one bug for each defect). > >There may be similar bugs already, so please check this also. > > > >Thanks > > > >Marvin > > > >Am Montag 05 Juli 2010, 01:19:26 schrieb Wakko Warner: > >>Wakko Warner wrote: > >>>I have a Dell Inspiron 5100 with an ATI Radeon Mobility M7 (7500 R100 > >>>PCI ID 1002:4c57 sub 1028:0149). > >>> > >>>Immediately when radeon.ko is loaded, the screen goes blank (The > >>>backlight stays on). I have fbcon compiled into the kernel (I also > >>>tried as module). I am unable to get the screen to work again until I > >>>reboot. The logs did not appear to have any errors after the module > >>>loaded. The system was still responsive on the network. > >>> > >>>I tried kernels 2.6.33 and 2.6.34. > >>> > >>>I can provide kernel output if needed. > >> > >>I need to add that if I use modeset=0, the screen does not blank. > >> > >>Also 2.6.34 (with modeset=0) doesn't do 3D very well on this system. Some > >>objects look ok, some are garbled, some do not appear at all. The gears > >>from xscreensaver does not show up at all. > > > >-- > >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > >the body of a message to majordomo@vger.kernel.org > >More majordomo info at http://vger.kernel.org/majordomo-info.html > >Please read the FAQ at http://www.tux.org/lkml/ > > > > > I've hit a couple of things with radeon as well.. the first was this: > http://lkml.org/lkml/2010/6/6/172 > (if your hitting this issue, then the patch should work and/or it should > already be in the main tree).
Doesn't appear to be. I mentioned above that I have no errors. I forgot about it saying something about the BIOS. It shows this [drm:radeon_get_bios] *ERROR* Unable to locate a BIOS ROM
> then a few days ago hit another: > https://bugzilla.kernel.org/show_bug.cgi?id=16335 > (keep in mind still uncertain on a fix for this, reverting the commit > gets me up and running(I created a patch, but an umsure if it's a right > solution)).
This one appears to be X related. In my case, this happens immediately at radeon.ko load (with modeset=1). Verification of this was booting with init=/bin/sh and modprobe radeon. Instant black screen. The backlight stays on.
> if none of these are what your hitting, then maybe(if you can) do a > bisect on this!
I tried 2.6.32.15. I noticed that KMS was in staging. This one didn't do a black screen. I saw mostly white, green and a pinkish color. All were kind of washed out and were in vertical lines. KMS on this laptop has not worked with stock kernels.
I booted Ubuntu 10.04 live CD and it appears that KMS was working. I don't know what patches they have in the kernel for this or what is different.
-- Microsoft has beaten Volkswagen's world record. Volkswagen only created 22 million bugs.
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