From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 73530] Asus U38N: Black screen with Radeon driver in Linux
Date: Thu, 14 May 2015 19:45:04 +0000
Message-ID: <bug-73530-502-qxooACZi9B@http.bugs.freedesktop.org/>
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Date: Thu, 14 May 2015 19:45:03 +0000
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https://bugs.freedesktop.org/show_bug.cgi?id=73530

--- Comment #96 from Nicolas Werner <nicolas.werner@ymail.com> ---
(In reply to Alex Deucher from comment #95)
> Created attachment 115780 [details] [review]
> add some debugging output
> 
> Can you attach the dmesg output with the attached patch?

Seems like we're getting somewhere, looks like a bad pointer?

[    5.645981] [drm] radeon_dp_getdpcd
[    5.645988] [drm] dig_connector ffff8802a21c42c0
[    5.645991] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[    5.677325] [drm] fb mappable at 0xD047B000
[    5.677330] [drm] vram apper at 0xD0000000
[    5.677332] [drm] size 8294400
[    5.677335] [drm] fb depth is 24
[    5.677337] [drm]    pitch is 7680
[    5.677542] fbcon: radeondrmfb (fb0) is primary device
[    5.677635] [drm:radeon_dp_set_link_config] *ERROR* corrupt dpcd, updating
[    5.678223] [drm] radeon_dp_set_link_config, 540000, 1
[    5.678224] [drm] dig_connector ffff8802a21c42a0
[    5.678225] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    6.818832] [drm:radeon_dp_set_rx_power_state] *ERROR* corrupt dpcd,
updating
[    6.819418] [drm] radeon_dp_set_rx_power_state, 0
[    6.819420] [drm] dig_connector ffff8802a21c42a0
[    6.819421] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    7.953814] [drm:radeon_dp_link_train] *ERROR* corrupt dpcd, updating
[    7.954642] [drm] radeon_dp_link_train
[    7.954644] [drm] dig_connector ffff8802a21c42a0
[    7.954645] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    7.954646] [drm] dp_info dpcd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    7.954647] [drm:radeon_dp_set_rx_power_state] *ERROR* corrupt dpcd,
updating
[    7.954950] [drm] radeon_dp_getdpcd
[    7.954951] [drm] dig_connector ffff8802a21c42a0
[    7.954952] [drm] DPCD: 11 0a 02 00 00 00 00 00 00 00 00 00 00 00 00
[    7.954954] [drm] radeon_dp_set_rx_power_state, 17
[    7.954955] [drm] dig_connector ffff8802a21c42a0
[    7.954956] [drm] DPCD: 11 0a 02 00 00 00 00 00 00 00 00 00 00 00 00
[    7.962990] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery tried 5
times
[    7.962991] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery failed
[    8.361691] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
[    8.390386] [drm] Initialized radeon 2.40.0 20080528 for 0000:00:01.0 on
minor 0
[   10.548765] [drm] radeon_dp_getdpcd
[   10.548773] [drm] dig_connector ffff8802a21c42c0
[   10.548777] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[   10.579288] [drm] radeon_dp_getdpcd
[   10.579297] [drm] dig_connector ffff8802a21c42c0
[   10.579300] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[   10.638418] [drm] radeon_dp_getdpcd
[   10.638425] [drm] dig_connector ffff8802a21c42c0
[   10.638428] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[   10.667255] [drm] radeon_dp_getdpcd
[   10.667263] [drm] dig_connector ffff8802a21c42c0
[   10.667267] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00

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<html>
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      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Asus U38N: Black screen with Radeon driver in Linux"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73530#c96">Comment # 96</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Asus U38N: Black screen with Radeon driver in Linux"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73530">bug 73530</a>
              from <span class="vcard"><a class="email" href="mailto:nicolas.werner&#64;ymail.com" title="Nicolas Werner &lt;nicolas.werner&#64;ymail.com&gt;"> <span class="fn">Nicolas Werner</span></a>
</span></b>
        <pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=73530#c95">comment #95</a>)
<span class="quote">&gt; Created <span class=""><a href="attachment.cgi?id=115780" name="attach_115780" title="add some debugging output">attachment 115780</a> <a href="attachment.cgi?id=115780&amp;action=edit" title="add some debugging output">[details]</a></span> <a href='page.cgi?id=splinter.html&amp;bug=73530&amp;attachment=115780'>[review]</a> [review]
&gt; add some debugging output
&gt; 
&gt; Can you attach the dmesg output with the attached patch?</span >

Seems like we're getting somewhere, looks like a bad pointer?

[    5.645981] [drm] radeon_dp_getdpcd
[    5.645988] [drm] dig_connector ffff8802a21c42c0
[    5.645991] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[    5.677325] [drm] fb mappable at 0xD047B000
[    5.677330] [drm] vram apper at 0xD0000000
[    5.677332] [drm] size 8294400
[    5.677335] [drm] fb depth is 24
[    5.677337] [drm]    pitch is 7680
[    5.677542] fbcon: radeondrmfb (fb0) is primary device
[    5.677635] [drm:radeon_dp_set_link_config] *ERROR* corrupt dpcd, updating
[    5.678223] [drm] radeon_dp_set_link_config, 540000, 1
[    5.678224] [drm] dig_connector ffff8802a21c42a0
[    5.678225] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    6.818832] [drm:radeon_dp_set_rx_power_state] *ERROR* corrupt dpcd,
updating
[    6.819418] [drm] radeon_dp_set_rx_power_state, 0
[    6.819420] [drm] dig_connector ffff8802a21c42a0
[    6.819421] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    7.953814] [drm:radeon_dp_link_train] *ERROR* corrupt dpcd, updating
[    7.954642] [drm] radeon_dp_link_train
[    7.954644] [drm] dig_connector ffff8802a21c42a0
[    7.954645] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    7.954646] [drm] dp_info dpcd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    7.954647] [drm:radeon_dp_set_rx_power_state] *ERROR* corrupt dpcd,
updating
[    7.954950] [drm] radeon_dp_getdpcd
[    7.954951] [drm] dig_connector ffff8802a21c42a0
[    7.954952] [drm] DPCD: 11 0a 02 00 00 00 00 00 00 00 00 00 00 00 00
[    7.954954] [drm] radeon_dp_set_rx_power_state, 17
[    7.954955] [drm] dig_connector ffff8802a21c42a0
[    7.954956] [drm] DPCD: 11 0a 02 00 00 00 00 00 00 00 00 00 00 00 00
[    7.962990] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery tried 5
times
[    7.962991] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery failed
[    8.361691] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
[    8.390386] [drm] Initialized radeon 2.40.0 20080528 for 0000:00:01.0 on
minor 0
[   10.548765] [drm] radeon_dp_getdpcd
[   10.548773] [drm] dig_connector ffff8802a21c42c0
[   10.548777] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[   10.579288] [drm] radeon_dp_getdpcd
[   10.579297] [drm] dig_connector ffff8802a21c42c0
[   10.579300] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[   10.638418] [drm] radeon_dp_getdpcd
[   10.638425] [drm] dig_connector ffff8802a21c42c0
[   10.638428] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[   10.667255] [drm] radeon_dp_getdpcd
[   10.667263] [drm] dig_connector ffff8802a21c42c0
[   10.667267] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00</pre>
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