[nouveau-drm] failed to set mode on crtc

[nouveau-drm] failed to set mode on crtc

[yaiba.kurogane-khu2bkKidpXVItvQsEIGlw]

  Hi. I have a problem with current kernel 2.6.35 and nouveau module 
compiled from git (today).From xorg.0.log I got information that no 
output was found.And here is some nasty kernel logs:

...
Aug  2 21:53:02 zilog kernel: Linux agpgart interface v0.103
Aug  2 21:53:02 zilog kernel: [drm] Initialized drm 1.1.0 20060810
Aug  2 21:53:02 zilog kernel: nouveau 0000:01:00.0: PCI INT A -> GSI 16 
(level, low) -> IRQ 16
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Detected an 
NV10 generation card (0x017100a3)
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Attempting to 
load BIOS image from PRAMIN
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: ... appears to 
be valid
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: BMP BIOS found
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: BMP version 5.20
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Bios version 
04.17.00.18
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Found Display 
Configuration Block version 1.4
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: No useful 
information in BIOS output table; adding all possible outputs
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Loading NV17 
power sequencing microcode
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Parsing VBIOS 
init table 0 at offset 0xC4D2
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Parsing VBIOS 
init table 1 at offset 0xC77E
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Parsing VBIOS 
init table 2 at offset 0xC5BC
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Parsing VBIOS 
init table 3 at offset 0xCC81
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Parsing VBIOS 
init table 4 at offset 0xC719
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Detected 64MiB 
VRAM
Aug  2 21:53:02 zilog kernel: [TTM] Zone  kernel: Available graphics 
memory: 320512 kiB.
Aug  2 21:53:02 zilog kernel: [TTM] Initializing pool allocator.
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: 64 MiB GART 
(aperture)
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Saving VGA fonts
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Allocating 
FIFO number 0
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: 
nouveau_channel_alloc: initialised FIFO 0
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Setting dpms 
mode 3 on vga encoder (output 0)
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: Setting dpms 
mode 3 on tmds encoder (output 1)
Aug  2 21:53:02 zilog kernel: [drm] nouveau 0000:01:00.0: allocated 
1280x1024 fb: 0x48000, bo e6e43c00
Aug  2 21:53:02 zilog kernel: [drm:drm_crtc_helper_set_config] *ERROR* 
failed to set mode on crtc e72b1000
Aug  2 21:53:02 zilog kernel: fbcon_init: detected unhandled fb_set_par 
error, error code -22
Aug  2 21:53:02 zilog kernel: [drm:drm_crtc_helper_set_config] *ERROR* 
failed to set mode on crtc e72b1000
Aug  2 21:53:02 zilog kernel: Console: switching to colour frame buffer 
device 160x64
Aug  2 21:53:02 zilog kernel: [drm:drm_crtc_helper_set_config] *ERROR* 
failed to set mode on crtc e72b1000
Aug  2 21:53:02 zilog kernel: fb0: nouveaufb frame buffer device
Aug  2 21:53:02 zilog kernel: drm: registered panic notifier
Aug  2 21:53:02 zilog kernel: Slow work thread pool: Starting up
Aug  2 21:53:02 zilog kernel: Slow work thread pool: Ready
Aug  2 21:53:02 zilog kernel: [drm] Initialized nouveau 0.0.16 20090420 
for 0000:01:00.0 on minor 0
...

What is going on?

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Re: [nouveau-drm] failed to set mode on crtc

[Francisco Jerez]

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yaiba.kurogane-khu2bkKidpXVItvQsEIGlw@public.gmane.org writes:

>  Hi. I have a problem with current kernel 2.6.35 and nouveau module
> compiled from git (today).From xorg.0.log I got information that no
> output was found.And here is some nasty kernel logs:
>
> [...]
> What is going on?
>
Your BIOS lacks some information we need for modesetting. The attached
patch should fix it, can you give it a try?


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diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 23a7bec..fc35e9d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -5855,7 +5855,7 @@ static void fabricate_vga_output(struct dcb_table *dcb, int i2c, int heads)
 	entry->i2c_index = i2c;
 	entry->heads = heads;
 	entry->location = DCB_LOC_ON_CHIP;
-	/* "or" mostly unused in early gen crt modesetting, 0 is fine */
+	entry->or = 1;
 }
 
 static void fabricate_dvi_i_output(struct dcb_table *dcb, bool twoHeads)

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Re: [nouveau-drm] failed to set mode on crtc

[yaiba.kurogane-khu2bkKidpXVItvQsEIGlw]

  Yes, your patch works with current nouveau-drm very well. Thank you.

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