https://bugzilla.kernel.org/show_bug.cgi?id=42869

Summary: [3.3-rc1 regression] [nouveau] Spurious TV-out detected Product: Drivers Version: 2.5 Kernel Version: 3.3-rc5 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) AssignedTo: drivers_video-dri@kernel-bugs.osdl.org ReportedBy: schwab@linux-m68k.org Regression: Yes

Created an attachment (id=72540) --> (https://bugzilla.kernel.org/attachment.cgi?id=72540) drm messages from 3.2.1

0000:f0:10.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200 Ultra] (rev a1) (prog-if 00 [VGA controller]) Subsystem: nVidia Corporation Device 0010 Flags: bus master, 66MHz, medium devsel, latency 16, IRQ 48 Memory at 91000000 (32-bit, non-prefetchable) [size=16M] Memory at 98000000 (32-bit, prefetchable) [size=128M] Expansion ROM at 90000000 [disabled] [size=128K]

The monitor is connected to DVI-I-2, but the driver claims output is on TV-1.

Here's the difference of the kernel output between 3.2.1 and 3.3-rc5:

< [drm] nouveau 0000:f0:10.0: Found Display Configuration Block version 2.2 < [drm] nouveau 0000:f0:10.0: Raw DCB entry 0: 01100102 00000000 < [drm] nouveau 0000:f0:10.0: Raw DCB entry 1: 01000100 000088b8 < [drm] nouveau 0000:f0:10.0: Raw DCB entry 2: 02110212 11b00000 < [drm] nouveau 0000:f0:10.0: Raw DCB entry 3: 02010210 11b088b8 < [drm] nouveau 0000:f0:10.0: Raw DCB entry 4: 02010211 11b00003

[drm] nouveau 0000:f0:10.0: I2C4: type 3 index 0/0 unknown [drm] nouveau 0000:f0:10.0: I2C7: type 3 index 0/0 unknown [drm] nouveau 0000:f0:10.0: I2C8: type 3 index 0/0 unknown [drm] nouveau 0000:f0:10.0: I2C9: type 2 index 0/0 unknown [drm] nouveau 0000:f0:10.0: I2C15: type 3 index 0/0 unknown [drm] nouveau 0000:f0:10.0: MXM: no VBIOS data, nothing to do [drm] nouveau 0000:f0:10.0: DCB version 2.2 [drm] nouveau 0000:f0:10.0: DCB outp 00: 01100102 00000000 [drm] nouveau 0000:f0:10.0: DCB outp 01: 01000100 000088b8 [drm] nouveau 0000:f0:10.0: DCB outp 02: 02110212 11b00000 [drm] nouveau 0000:f0:10.0: DCB outp 03: 02010210 11b088b8 [drm] nouveau 0000:f0:10.0: DCB outp 04: 02010211 11b00003

--- < [drm] nouveau 0000:f0:10.0: allocated 1280x1024 fb: 0x49000, bo c000000177cd8000 < [drm] nouveau 0000:f0:10.0: Setting dpms mode 0 on tmds encoder (output 2) < [drm] nouveau 0000:f0:10.0: Output DVI-I-2 is running on CRTC 1 using output B

[drm] nouveau 0000:f0:10.0: Load detected on output B [drm] nouveau 0000:f0:10.0: allocated 720x576 fb: 0x49000, bo c000000177c00400 [drm] nouveau 0000:f0:10.0: Setting dpms mode 0 on TV encoder (output 4) [drm] nouveau 0000:f0:10.0: Output TV-1 is running on CRTC 1 using output B

Reverting commit a0b25635515ef5049f93b032a1e37f18b16e0f6f ("drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues") (together with 47e5d5cb83d4b41168f4afa1ca32843d4a126cc8, 52c4d767437b40b0cbc02d6a4480abb45ace64bb and 7df898b1a70b13c3a8892625f4ead929d9554293 which depend on it) fixes the issue, and nouveau.tv_disable=1 is also a workaround.