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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - nouveau: NV4E acceleration corruption when DMA above 31-bit (2 Gig barrier)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=46557#c23">Comment # 23</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - nouveau: NV4E acceleration corruption when DMA above 31-bit (2 Gig barrier)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=46557">bug 46557</a>
from <span class="vcard"><a class="email" href="mailto:baldur@email.de" title="baldur@email.de">baldur@email.de</a>
</span></b>
<pre>here is the output for nouveau from dmesg
[ 1.098755] nouveau 0000:00:05.0: >setting latency timer to 64
[ 1.099370] nouveau [ DEVICE][0000:00:05.0] BOOT0 : 0x04e000a2
[ 1.099374] nouveau [ DEVICE][0000:00:05.0] Chipset: C51 (NV4E)
[ 1.099377] nouveau [ DEVICE][0000:00:05.0] Family : NV40
[ 1.100226] nouveau [ VBIOS][0000:00:05.0] checking PRAMIN for image...
[ 1.136693] nouveau [ VBIOS][0000:00:05.0] ... appears to be valid
[ 1.136696] nouveau [ VBIOS][0000:00:05.0] using image from PRAMIN
[ 1.136922] nouveau [ VBIOS][0000:00:05.0] BIT signature found
[ 1.136925] nouveau [ VBIOS][0000:00:05.0] version 05.51.22.33
[ 1.137122] nouveau [ PFB][0000:00:05.0] RAM type: stolen system memory
[ 1.137125] nouveau [ PFB][0000:00:05.0] RAM size: 32 MiB
[ 1.789533] nouveau [ DRM] VRAM: 29 MiB
[ 1.789540] nouveau [ DRM] GART: 512 MiB
[ 1.789546] nouveau [ DRM] BIT BIOS found
[ 1.789550] nouveau [ DRM] Bios version 05.51.22.33
[ 1.789554] nouveau [ DRM] TMDS table version 1.1
[ 1.789557] nouveau [ DRM] DCB version 3.0
[ 1.789560] nouveau [ DRM] DCB outp 00: 02000300 00000023
[ 1.789563] nouveau [ DRM] DCB outp 01: 03011312 00000000
[ 1.789566] nouveau [ DRM] DCB outp 02: 020023f1 0040c080
[ 1.789569] nouveau [ DRM] DCB conn 00: 0000
[ 1.789572] nouveau [ DRM] DCB conn 01: 0131
[ 1.789575] nouveau [ DRM] DCB conn 02: 0210
[ 1.789577] nouveau [ DRM] DCB conn 03: 0211
[ 1.789580] nouveau [ DRM] DCB conn 04: 0213
[ 1.791153] nouveau [ DRM] 0xD186: Parsing digital output script table
[ 1.841924] nouveau [ DRM] 1 available performance level(s)
[ 1.841930] nouveau [ DRM] 0: core 475MHz shader 475MHz fanspeed 100%
[ 1.841932] nouveau [ DRM] c:
[ 1.843560] nouveau [ DRM] MM: using M2MF for buffer copies
[ 1.843567] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 1.843570] nouveau [ DRM] Setting dpms mode 3 on tmds encoder (output
1)
[ 1.843574] nouveau [ DRM] Setting dpms mode 3 on TV encoder (output 2)
[ 1.878032] nouveau [ DRM] Load detected on output B
[ 1.892156] nouveau [ DRM] allocated 1024x768 fb: 0x9000, bo
ffff880036fed400
[ 1.892270] fbcon: nouveaufb (fb0) is primary device
[ 1.902714] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 1.902716] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 1.903846] fb0: nouveaufb frame buffer device
[ 1.903853] [drm] Initialized nouveau 1.1.0 20120801 for 0000:00:05.0 on
minor 0
[ 1.980036] nouveau [ DRM] Load detected on output B
[ 2.081584] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 2.101978] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 2.101986] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 36.584586] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 36.604973] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 36.604978] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 37.232622] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 37.253031] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 37.253038] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 37.268629] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 37.289024] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 37.289028] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 37.381346] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 37.401716] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 37.401720] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 42.247520] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 42.267901] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 42.267906] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 55.168028] nouveau [ DRM] Load detected on output B
[ 55.185027] nouveau [ DRM] Load detected on output B
[ 58.741447] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 58.761829] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 58.761833] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 59.054034] nouveau [ DRM] Load detected on output B
[ 62.834059] nouveau [ DRM] Load detected on output B
[ 63.022824] nouveau [ DRM] Load detected on output B
[ 67.077190] nouveau E[ DRM] fail ttm_validate
[ 67.077198] nouveau E[ DRM] validate vram_list
[ 67.077208] nouveau E[ DRM] validate: -12
[ 67.137161] nouveau E[ DRM] fail ttm_validate
[ 67.137169] nouveau E[ DRM] validate vram_list
[ 67.137175] nouveau E[ DRM] validate: -12
[ 77.311034] nouveau [ DRM] Load detected on output B
[ 80.197045] nouveau [ DRM] Load detected on output B
[ 80.290070] nouveau [ DRM] Load detected on output B
[ 87.611597] nouveau E[ DRM] fail ttm_validate
[ 87.611605] nouveau E[ DRM] validate vram_list
[ 87.611611] nouveau E[ DRM] validate: -12
[ 87.637939] nouveau E[ DRM] fail ttm_validate
[ 87.637946] nouveau E[ DRM] validate vram_list
[ 87.637950] nouveau E[ DRM] validate: -12
[ 211.914453] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 211.934857] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 211.934862] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 256.428249] nouveau [ DRM] Setting dpms mode 3 on vga encoder (output
0)
[ 256.448634] nouveau [ DRM] Setting dpms mode 0 on vga encoder (output
0)
[ 256.448638] nouveau [ DRM] Output VGA-1 is running on CRTC 0 using
output B
[ 256.481072] nouveau [ DRM] Load detected on output B</pre>
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