From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 92274] nouveau black screen and errors with two monitors attached Date: Mon, 05 Oct 2015 17:27:01 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1182138210==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============1182138210== Content-Type: multipart/alternative; boundary="1444066021.46dC3AeD2.13323"; charset="UTF-8" --1444066021.46dC3AeD2.13323 Date: Mon, 5 Oct 2015 17:27:01 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=92274 --- Comment #6 from Ilia Mirkin --- In your first dmesg, you have: video=HDMI-0:e video=DVI-I-1:e Are these required for something? Force-enabling this stuff just leads to trouble down the line. Interesting.... [ 8.872612] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x690400 [ IBUS ] [ 8.872781] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0xbadf1001 FAULT at 0x690400 [ IBUS ] [ 8.872869] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x6904c0 [ IBUS ] [ 8.873043] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0xbadf1001 FAULT at 0x6904c0 [ IBUS ] in drm/nouveau/nvkm/engine/disp/hdmigk104.c: /* AVI InfoFrame */ nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000); nvkm_wr32(device, 0x690008 + hdmi, 0x000d0282); nvkm_wr32(device, 0x69000c + hdmi, 0x0000006f); nvkm_wr32(device, 0x690010 + hdmi, 0x00000000); nvkm_wr32(device, 0x690014 + hdmi, 0x00000000); nvkm_wr32(device, 0x690018 + hdmi, 0x00000000); nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000001); /* ??? InfoFrame? */ nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000); nvkm_wr32(device, 0x6900cc + hdmi, 0x00000010); nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000001); 690000 + hdmi / 6900c0 + hdmi each get 2 reads/writes, but you only see one error, both times on the enable. I wonder if this code doesn't need to be more like u32 foo = nvkm_rd32(device, 0x690000 + hdmi); nvkm_wr32(device, 0x690000 + hdmi, foo & ~1); ... nvkm_wr32(device, 0x690000 + hdmi, foo | 1); and same sort of thing for the second section. Are comfortable enough with code to try this on your own, or do you need patches? -- You are receiving this mail because: You are the assignee for the bug. --1444066021.46dC3AeD2.13323 Date: Mon, 5 Oct 2015 17:27:01 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 6 on bug 92274 from 
In your first dmesg, you have:

video=HDMI-0:e video=DVI-I-1:e

Are these required for something? Force-enabling this stuff just leads to
trouble down the line.

Interesting....

[    8.872612] nouveau E[    PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT
at 0x690400 [ IBUS ]
[    8.872781] nouveau E[    PBUS][0000:01:00.0] MMIO write of 0xbadf1001 FAULT
at 0x690400 [ IBUS ]
[    8.872869] nouveau E[    PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT
at 0x6904c0 [ IBUS ]
[    8.873043] nouveau E[    PBUS][0000:01:00.0] MMIO write of 0xbadf1001 FAULT
at 0x6904c0 [ IBUS ]

in drm/nouveau/nvkm/engine/disp/hdmigk104.c:

        /* AVI InfoFrame */
        nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000);
        nvkm_wr32(device, 0x690008 + hdmi, 0x000d0282);
        nvkm_wr32(device, 0x69000c + hdmi, 0x0000006f);
        nvkm_wr32(device, 0x690010 + hdmi, 0x00000000);
        nvkm_wr32(device, 0x690014 + hdmi, 0x00000000);
        nvkm_wr32(device, 0x690018 + hdmi, 0x00000000);
        nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000001);

        /* ??? InfoFrame? */
        nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000);
        nvkm_wr32(device, 0x6900cc + hdmi, 0x00000010);
        nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000001);

690000 + hdmi / 6900c0 + hdmi each get 2 reads/writes, but you only see one
error, both times on the enable. I wonder if this code doesn't need to be more
like

u32 foo = nvkm_rd32(device, 0x690000 + hdmi);
nvkm_wr32(device, 0x690000 + hdmi, foo & ~1);
...
nvkm_wr32(device, 0x690000 + hdmi, foo | 1);

and same sort of thing for the second section. Are comfortable enough with code
to try this on your own, or do you need patches?

You are receiving this mail because:
  • You are the assignee for the bug.
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