When I load module radeon with modeset=1, I see pixel noise on the screen and some characters from framebuffer console. If after this I load X, nothing changes. Videocard HD6570. I have tried kernels 3.2 - 3.3.4. md5sum TURKS_* 158f8e21ccf228ef063888c4f637fbf0 TURKS_mc.bin 8012e24b187c6b1ba17fa48691c3b048 TURKS_me.bin 25f26ba407a9bb13528b903c617209c8 TURKS_pfp.bin If I use modeset=0, I don't have KMS and can not start X.
This is a duplicate of: https://bugzilla.kernel.org/show_bug.cgi?id=43207
Created attachment 62070 [details] [review] Fix backend map This patch should fix your issue.
*** Bug 50891 has been marked as a duplicate of this bug. ***
I applied the patch, but it did not solve the issue. I am not 100% sure I applied correctly (it's the first time I did this...), but I followed the instructions from http://fedoraproject.org/wiki/Building_a_custom_kernel so I think I'm quite confident. Reminder : my bug was #50891
I forgot to mention that I received the following errors on the console : [ 35.086959] radeon 0000:01:00.0: GPU lockup CP stall for more than 10020msec [ 35.086968] GPU lockup (waiting for 0x00000003 last fence id 0x00000001) [ 35.088218] radeon 0000:01:00.0: GPU softreset [ 35.088225] radeon 0000:01:00.0: GRBM_STATUS=0xB1403828 [ 35.088232] radeon 0000:01:00.0: GRBM_STATUS_SE0=0x28000007 [ 35.088238] radeon 0000:01:00.0: GRBM_STATUS_SE1=0x00000007 [ 35.088245] radeon 0000:01:00.0: SRBM_STATUS=0x200000C0 [ 35.088262] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x00007F6B [ 35.088370] radeon 0000:01:00.0: GRBM_STATUS=0x00003828 [ 35.088376] radeon 0000:01:00.0: GRBM_STATUS_SE0=0x00000007 [ 35.088382] radeon 0000:01:00.0: GRBM_STATUS_SE1=0x00000007 [ 35.088388] radeon 0000:01:00.0: SRBM_STATUS=0x200000C0 [ 35.089395] radeon 0000:01:00.0: GPU reset succeed [ 35.170461] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000). [ 35.170621] radeon 0000:01:00.0: WB enabled [ 35.170635] [drm] fence driver on ring 0 use gpu addr 0x40000c00 and cpu addr 0xffff880425ddbc00 [ 35.186909] [drm] ring test on 0 succeeded in 1 usecs [ 35.186961] [drm] ib test on ring 0 succeeded in 1 usecs [ 46.187682] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
Hi all, I checked the source tree where my kernel was built from, and I can confirm that the patch was actually correctly applied... I'll be very happy to help, if there is anything I can do to help fixing this bug! (some more logs, tests, patches...) Goulou.
A patch referencing this bug report has been merged in Linux v3.5-rc1: commit 95c4b23ec4e2fa5604df229ddf134e31d7b3b378 Author: Jerome Glisse <jglisse@redhat.com> Date: Thu May 31 19:00:24 2012 -0400 drm/radeon: fix HD6790, HD6570 backend programming
The patch alone did not seem to work, but I'm now running kernel 3.5.0-rc4 (rpm from Fedora 18, installed on F17), and I can confirm that, for the first time ever, the radeon driver works for me!! As of now, it seems pretty slow thought, but I will check again later : the reboot harmed my raid and it is re-syncing now... Anyway, at least I'm running a really free driver :-)
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