Comment 5 for bug 774909

I am having the same problem after upgrading to 11.04. I have a ATI Radeon™ HD 4890 card that gave no problems under Vista or Ubuntu 10.10.

Occasionally at startup I get this error, rebooting generally fixes the issue.

/var/log/syslog:

May 2 19:20:55 tildonk kernel: [ 11.135390] 4:3:1: cannot get freq at ep 0x84
May 2 19:20:55 tildonk kernel: [ 11.143711] usbcore: registered new interface driver snd-usb-audio
May 2 19:20:55 tildonk kernel: [ 11.169376] [drm] ring test succeeded in 1 usecs
May 2 19:20:55 tildonk kernel: [ 11.169498] [drm] radeon: ib pool ready.
May 2 19:20:55 tildonk kernel: [ 11.169580] [drm] ib test succeeded in 0 usecs
May 2 19:20:55 tildonk kernel: [ 11.169583] [drm] Enabling audio support
May 2 19:20:55 tildonk kernel: [ 11.169590] failed to evaluate ATIF got AE_BAD_PARAMETER
May 2 19:20:55 tildonk kernel: [ 11.171426] [drm] Radeon Display Connectors
May 2 19:20:55 tildonk kernel: [ 11.171429] [drm] Connector 0:
May 2 19:20:55 tildonk kernel: [ 11.171431] [drm] DVI-I
May 2 19:20:55 tildonk kernel: [ 11.171432] [drm] HPD2
May 2 19:20:55 tildonk kernel: [ 11.171434] [drm] DDC: 0x7e60 0x7e60 0x7e64 0x7e64 0x7e68 0x7e68 0x7e6c 0x7e6c
May 2 19:20:55 tildonk kernel: [ 11.171436] [drm] Encoders:
May 2 19:20:55 tildonk kernel: [ 11.171437] [drm] DFP1: INTERNAL_UNIPHY
May 2 19:20:55 tildonk kernel: [ 11.171439] [drm] CRT2: INTERNAL_KLDSCP_DAC2
May 2 19:20:55 tildonk kernel: [ 11.171440] [drm] Connector 1:
May 2 19:20:55 tildonk kernel: [ 11.171441] [drm] DIN
May 2 19:20:55 tildonk kernel: [ 11.171442] [drm] Encoders:
May 2 19:20:55 tildonk kernel: [ 11.171444] [drm] TV1: INTERNAL_KLDSCP_DAC2
May 2 19:20:55 tildonk kernel: [ 11.171445] [drm] Connector 2:
May 2 19:20:55 tildonk kernel: [ 11.171446] [drm] DVI-I
May 2 19:20:55 tildonk kernel: [ 11.171447] [drm] HPD1
May 2 19:20:55 tildonk kernel: [ 11.171449] [drm] DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c
May 2 19:20:55 tildonk kernel: [ 11.171451] [drm] Encoders:
May 2 19:20:55 tildonk kernel: [ 11.171452] [drm] CRT1: INTERNAL_KLDSCP_DAC1
May 2 19:20:55 tildonk kernel: [ 11.171453] [drm] DFP2: INTERNAL_KLDSCP_LVTMA
May 2 19:20:55 tildonk kernel: [ 11.225729] [drm] Internal thermal controller with fan control
May 2 19:20:55 tildonk kernel: [ 11.225785] [drm] radeon: power management initialized
May 2 19:20:55 tildonk kernel: [ 11.308264] [drm] fb mappable at 0xD0142000
May 2 19:20:55 tildonk kernel: [ 11.308267] [drm] vram apper at 0xD0000000
May 2 19:20:55 tildonk kernel: [ 11.308269] [drm] size 7299072
May 2 19:20:55 tildonk kernel: [ 11.308270] [drm] fb depth is 24
May 2 19:20:55 tildonk kernel: [ 11.308271] [drm] pitch is 6912
May 2 19:20:55 tildonk kernel: [ 11.308700] Console: switching to colour frame buffer device 210x65
May 2 19:20:55 tildonk kernel: [ 11.308732] fb0: radeondrmfb frame buffer device
May 2 19:20:55 tildonk kernel: [ 11.308734] drm: registered panic notifier
May 2 19:20:55 tildonk kernel: [ 11.308742] [drm] Initialized radeon 2.8.0 20080528 for 0000:01:00.0 on minor 0

May 2 19:21:11 tildonk kernel: [ 28.960012] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
May 2 19:21:11 tildonk kernel: [ 28.960016] ------------[ cut here ]------------
May 2 19:21:11 tildonk kernel: [ 28.960043] WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()
May 2 19:21:11 tildonk kernel: [ 28.960046] Hardware name: P5QL PRO
May 2 19:21:11 tildonk kernel: [ 28.960048] GPU lockup (waiting for 0x000000B0 last fence id 0x000000AE)
May 2 19:21:11 tildonk kernel: [ 28.960050] Modules linked in: binfmt_misc parport_pc ppdev joydev snd_hda_codec_hdmi usbhid hid snd_hda_codec_realtek snd_usb_audio snd_hda_intel snd_hda_codec snd_hwdep uvcvideo videodev snd_pcm snd_usbmidi_lib v4l2_compat_ioctl32 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq radeon snd_timer asus_atk0110 snd_seq_device psmouse serio_raw snd ttm drm_kms_helper soundcore drm snd_page_alloc i2c_algo_bit lp parport atl1e pata_marvell
May 2 19:21:11 tildonk kernel: [ 28.960079] Pid: 969, comm: Xorg Not tainted 2.6.38-8-generic #42-Ubuntu
May 2 19:21:11 tildonk kernel: [ 28.960081] Call Trace:
May 2 19:21:11 tildonk kernel: [ 28.960088] [<ffffffff81065cef>] ? warn_slowpath_common+0x7f/0xc0
May 2 19:21:11 tildonk kernel: [ 28.960091] [<ffffffff81065de6>] ? warn_slowpath_fmt+0x46/0x50
May 2 19:21:11 tildonk kernel: [ 28.960106] [<ffffffffa01066df>] ? radeon_fence_wait+0x36f/0x3e0 [radeon]
May 2 19:21:11 tildonk kernel: [ 28.960111] [<ffffffff81087f30>] ? autoremove_wake_function+0x0/0x40
May 2 19:21:11 tildonk kernel: [ 28.960125] [<ffffffffa0106fc1>] ? radeon_sync_obj_wait+0x11/0x20 [radeon]
May 2 19:21:11 tildonk kernel: [ 28.960133] [<ffffffffa0071b0d>] ? ttm_bo_wait+0xfd/0x1b0 [ttm]
May 2 19:21:11 tildonk kernel: [ 28.960138] [<ffffffffa0071e88>] ? ttm_bo_list_ref_sub+0x28/0x30 [ttm]
May 2 19:21:11 tildonk kernel: [ 28.960155] [<ffffffffa011f9e3>] ? radeon_gem_wait_idle_ioctl+0x93/0x110 [radeon]
May 2 19:21:11 tildonk kernel: [ 28.960166] [<ffffffffa0039384>] ? drm_ioctl+0x3e4/0x4c0 [drm]
May 2 19:21:11 tildonk kernel: [ 28.960186] [<ffffffffa011f950>] ? radeon_gem_wait_idle_ioctl+0x0/0x110 [radeon]
May 2 19:21:11 tildonk kernel: [ 28.960190] [<ffffffff810165fb>] ? check_for_xstate+0x3b/0xb0
May 2 19:21:11 tildonk kernel: [ 28.960193] [<ffffffff810166c4>] ? restore_user_xstate+0x54/0xa0
May 2 19:21:11 tildonk kernel: [ 28.960197] [<ffffffff8117648f>] ? do_vfs_ioctl+0x8f/0x360
May 2 19:21:11 tildonk kernel: [ 28.960200] [<ffffffff8100bd06>] ? sys_rt_sigreturn+0x106/0x140
May 2 19:21:11 tildonk kernel: [ 28.960203] [<ffffffff811767f1>] ? sys_ioctl+0x91/0xa0
May 2 19:21:11 tildonk kernel: [ 28.960205] [<ffffffff8100c002>] ? system_call_fastpath+0x16/0x1b
May 2 19:21:11 tildonk kernel: [ 28.960207] ---[ end trace 012fedf8ca56340e ]---
May 2 19:21:11 tildonk kernel: [ 28.960216] [drm] Disabling audio support
May 2 19:21:11 tildonk kernel: [ 28.960236] HDMI hot plug event: Pin=3 Presence_Detect=0 ELD_Valid=0