https://bugzilla.kernel.org/show_bug.cgi?id=30832

Summary: Radeon S-Video Out has become black and white. Works fine in 2.6.37 Product: Drivers Version: 2.5 Kernel Version: 2.6.38.6 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: arbitrabbit@runbox.com Regression: Yes

The S-Video out of Radeon driver has become black and white in kernel 2.6.38.The regression happened around 2.6.37.2 as the driver worked fine in 2.6.37. I have a Radeon HD4850 card.

Here is the difference in the dmesg output from the two kernels. I can hardly notice any difference, other than timestamps. In kernel 2.6.38, initialization happens very quickly - maybe a timing issue? Other than the kernels, everything else is same.

2.6.38-6-generic

[ 9.422549] [drm] Initialized drm 1.1.0 20060810 [ 10.094022] [drm] radeon defaulting to kernel modesetting. [ 10.094024] [drm] radeon kernel modesetting enabled. [ 10.094105] fb: conflicting fb hw usage radeondrmfb vs VESA VGA - removing generic driver [ 10.095453] [drm] initializing kernel modesetting (RV770 0x1002:0x9442). [ 10.095475] [drm] register mmio base: 0xFDFE0000 [ 10.095476] [drm] register mmio size: 65536 [ 10.097903] [drm] Detected VRAM RAM=512M, BAR=256M [ 10.097906] [drm] RAM width 256bits DDR [ 10.098018] [drm] radeon: 512M of VRAM memory ready [ 10.098020] [drm] radeon: 512M of GTT memory ready. [ 10.098033] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 10.098034] [drm] Driver supports precise vblank timestamp query. [ 10.098097] [drm] radeon: irq initialized. [ 10.098099] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 10.098748] [drm] Loading RV770 Microcode [ 11.480076] [drm] ring test succeeded in 1 usecs [ 11.480146] [drm] radeon: ib pool ready. [ 11.480196] [drm] ib test succeeded in 0 usecs [ 11.480198] [drm] Enabling audio support [ 11.480389] [drm] Radeon Display Connectors [ 11.480390] [drm] Connector 0: [ 11.480391] [drm] DVI-I [ 11.480392] [drm] HPD1 [ 11.480394] [drm] DDC: 0x7e60 0x7e60 0x7e64 0x7e64 0x7e68 0x7e68 0x7e6c 0x7e6c [ 11.480395] [drm] Encoders: [ 11.480396] [drm] DFP1: INTERNAL_UNIPHY [ 11.480397] [drm] CRT2: INTERNAL_KLDSCP_DAC2 [ 11.480398] [drm] Connector 1: [ 11.480399] [drm] DIN [ 11.480400] [drm] Encoders: [ 11.480400] [drm] TV1: INTERNAL_KLDSCP_DAC2 [ 11.480401] [drm] Connector 2: [ 11.480402] [drm] DVI-I [ 11.480403] [drm] HPD2 [ 11.480404] [drm] DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c [ 11.480405] [drm] Encoders: [ 11.480406] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 11.480407] [drm] DFP2: INTERNAL_KLDSCP_LVTMA [ 11.536188] [drm] Internal thermal controller with fan control [ 11.536219] [drm] radeon: power management initialized [ 11.638668] [drm] fb mappable at 0xD0142000 [ 11.638669] [drm] vram apper at 0xD0000000 [ 11.638670] [drm] size 8294400 [ 11.638671] [drm] fb depth is 24 [ 11.638672] [drm] pitch is 7680 [ 11.638789] fb0: radeondrmfb frame buffer device [ 11.638790] drm: registered panic notifier [ 11.638794] [drm] Initialized radeon 2.8.0 20080528 for 0000:01:00.0 on minor 0 [ 22.170538] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id

2.6.37-020637-generic

[ 15.278388] [drm] Initialized drm 1.1.0 20060810 [ 15.654177] [drm] radeon defaulting to kernel modesetting. [ 15.654178] [drm] radeon kernel modesetting enabled. [ 15.654692] fb: conflicting fb hw usage radeondrmfb vs VESA VGA - removing generic driver [ 15.656087] [drm] initializing kernel modesetting (RV770 0x1002:0x9442). [ 15.660089] [drm] register mmio base: 0xFDFE0000 [ 15.660090] [drm] register mmio size: 65536 [ 15.662457] [drm] Detected VRAM RAM=512M, BAR=256M [ 15.662460] [drm] RAM width 256bits DDR [ 15.670407] [drm] radeon: 512M of VRAM memory ready [ 15.670408] [drm] radeon: 512M of GTT memory ready. [ 15.670477] [drm] radeon: irq initialized. [ 15.670479] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 15.671039] [drm] Loading RV770 Microcode [ 15.870579] [drm] ring test succeeded in 1 usecs [ 15.870647] [drm] radeon: ib pool ready. [ 15.870699] [drm] ib test succeeded in 0 usecs [ 15.870701] [drm] Enabling audio support [ 15.870886] [drm] Radeon Display Connectors [ 15.870887] [drm] Connector 0: [ 15.870888] [drm] DVI-I [ 15.870889] [drm] HPD1 [ 15.870890] [drm] DDC: 0x7e60 0x7e60 0x7e64 0x7e64 0x7e68 0x7e68 0x7e6c 0x7e6c [ 15.870891] [drm] Encoders: [ 15.870892] [drm] DFP1: INTERNAL_UNIPHY [ 15.870893] [drm] CRT2: INTERNAL_KLDSCP_DAC2 [ 15.870894] [drm] Connector 1: [ 15.870895] [drm] DIN [ 15.870896] [drm] Encoders: [ 15.870897] [drm] TV1: INTERNAL_KLDSCP_DAC2 [ 15.870898] [drm] Connector 2: [ 15.870898] [drm] DVI-I [ 15.870899] [drm] HPD2 [ 15.870901] [drm] DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c [ 15.870902] [drm] Encoders: [ 15.870903] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 15.870904] [drm] DFP2: INTERNAL_KLDSCP_LVTMA [ 15.936495] [drm] Internal thermal controller with fan control [ 15.936529] [drm] radeon: power management initialized [ 16.028673] [drm] fb mappable at 0xD0142000 [ 16.028674] [drm] vram apper at 0xD0000000 [ 16.028675] [drm] size 8294400 [ 16.028676] [drm] fb depth is 24 [ 16.028677] [drm] pitch is 7680 [ 16.028790] fb0: radeondrmfb frame buffer device [ 16.028792] drm: registered panic notifier [ 16.028795] [drm] Initialized radeon 2.7.0 20080528 for 0000:01:00.0 on minor 0 [ 20.216393] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 20.981880] Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc snd_hda_codec_hdmi tuner_simple tuner_types wm8775 tda9887 tda8290 snd_hda_codec_realtek tuner radeon cx25840 snd_hda_intel ivtv cx2341x snd_hda_codec snd_seq_midi btusb bluetooth v4l2_common snd_rawmidi videodev snd_hwdep snd_seq_midi_event v4l1_compat v4l2_compat_ioctl32 tveeprom snd_pcm snd_seq ttm joydev hid_topseed drm_kms_helper serio_raw drm hid_logitech i2c_piix4 ff_memless lp ppdev parport_pc parport snd_seq_device snd_timer i2c_algo_bit k10temp edac_core edac_mce_amd cdc_acm usblp shpchp snd soundcore snd_page_alloc usbhid hid usb_storage uas firewire_ohci ahci firewire_core crc_itu_t r8169 pata_atiixp libahci