| RAOF | Bah. | 03:36 |
|---|---|---|
| RAOF | mir_render_surface_get_buffer_stream is broken. | 03:36 |
| duflu | RAOF: Is there such thing as a hardware default gamma ramp, or would you just need to save and use the current ramps at startup? | 03:54 |
| RAOF | duflu: There's whatever's in the LUT after POST. | 03:55 |
| duflu | Yeah | 03:55 |
| RAOF | Which is going to be a sensible default. | 03:55 |
| duflu | RAOF: Unfortunately only the system compositor (first invocation) can get that. And a client can never get it | 03:56 |
| RAOF | Why won't a client get that? | 03:56 |
| RAOF | We read out the existing gamma curve at startup. | 03:56 |
| duflu | RAOF: I mean the client can't assume that someone else hasn't changed it already | 03:56 |
| RAOF | That's true. Why would a client care? | 03:57 |
| duflu | RAOF: To approximate 'xrandr --brightness' which is predictably just an ugly approximation | 03:57 |
| duflu | To keep it accurate you need to know the default full brightness ramp | 03:58 |
| RAOF | But we're going to provide a brightness knob anyway? | 03:59 |
| duflu | RAOF: Backlight control doesn't work on desktops, projectors, OLED... :) | 03:59 |
| RAOF | Incorrect! | 03:59 |
| duflu | There is no backlight device | 03:59 |
| duflu | That works | 03:59 |
| duflu | Blame intel | 04:00 |
| RAOF | Depends on the monitor. | 04:00 |
| duflu | Most non-laptop systems actually don't have a user controllable backlight device | 04:00 |
| duflu | And even some laptops don't (OLED) | 04:00 |
| RAOF | Both my monitors support brightness control. | 04:01 |
| duflu | RAOF: /sys/class/backlight works? | 04:01 |
| RAOF | X doesn't, but that's fine. | 04:01 |
| RAOF | duflu: No, but you can bang the I2C bus. | 04:01 |
| duflu | Yeah, I'm thinking about a portable solution | 04:02 |
| duflu | RAOF: Suggested tools for i2c controls? | 04:02 |
| RAOF | Indeed. A portable solution is us providing a brightness knob. | 04:02 |
| RAOF | ddccontrol is a reasonable start. | 04:03 |
| RAOF | Oh, hello! ddcci-dkms provides /sys/class/backlight. | 04:04 |
| RAOF | I wonder why that's not a part of drm? | 04:04 |
| RAOF | Anyway - the portable solution is for us to provide a brightness knob, backed by an actual backlight device if possible or by gamma ramps if not. | 04:06 |
| * RAOF likes that captureless lambdas desugar to C function pointers. | 04:08 | |
| duflu | OK, this works... sudo ddccontrol -r 0x10 -w 100 dev:/dev/i2c-7 | 04:09 |
| duflu | Not obvious or user friendly | 04:09 |
| RAOF | Oh, totally. | 04:10 |
| RAOF | Which, again, is why we provide a brightness knob on a MirOutput :) | 04:11 |
| duflu | Nice to have a solution that doesn't sacrifice colour precision | 04:13 |
| RAOF | Yes. | 04:13 |
| duflu | Oh, we can do fancy things too. Like ask the monitor what its orientation is | 04:14 |
| duflu | We should do that | 04:14 |
| RAOF | Plausibly? I haven't really fiddled with too much of that :) | 04:14 |
| duflu | My desktop monitor can do a few useful things... | 04:15 |
| duflu | Controls (valid/current/max) [Description - Value name]: | 04:15 |
| duflu | Control 0x02: +/1/65535 C [???] | 04:15 |
| duflu | Control 0x04: +/0/1 C [Restore Factory Defaults] | 04:15 |
| duflu | Control 0x05: +/0/1 C [Restore Brightness and Contrast] | 04:15 |
| duflu | Control 0x06: +/0/1 [???] | 04:15 |
| duflu | Control 0x08: +/0/1 C [Restore Factory Default Color] | 04:15 |
| duflu | Control 0x10: +/50/100 C [Brightness] | 04:15 |
| duflu | Control 0x12: +/50/100 C [Contrast] | 04:15 |
| duflu | Control 0x14: +/0/65535 C [???] | 04:15 |
| duflu | Control 0x16: +/100/100 C [Red maximum level] | 04:15 |
| duflu | Control 0x18: +/100/100 C [Green maximum level] | 04:15 |
| duflu | Control 0x1a: +/100/100 C [Blue maximum level] | 04:15 |
| duflu | Control 0x1e: +/0/1 [???] | 04:15 |
| duflu | Control 0x60: +/16/65535 C [Input Source Select] | 04:15 |
| duflu | Control 0x68: +/1/2 [???] | 04:15 |
| duflu | Control 0x6c: +/0/65535 C [Red minimum level] | 04:15 |
| duflu | Control 0x6e: +/0/65535 C [Green minimum level] | 04:15 |
| duflu | Control 0x70: +/0/65535 C [Blue minimum level] | 04:15 |
| duflu | Control 0x8a: +/50/65535 [???] | 04:15 |
| duflu | Control 0x8c: +/12/65535 [???] | 04:15 |
| duflu | Control 0xaa: +/1/65535 C [OSD Orientation - Landscape] | 04:15 |
| duflu | Control 0xac: +/8464/1 C [???] | 04:15 |
| duflu | Control 0xae: +/6000/65535 C [???] | 04:15 |
| duflu | Control 0xb0: +/0/1 [???] | 04:15 |
| duflu | Control 0xb6: +/3/65535 C [???] | 04:15 |
| duflu | Control 0xc0: +/0/65535 [???] | 04:15 |
| duflu | Control 0xc6: +/17868/65535 C [???] | 04:15 |
| duflu | Control 0xc8: +/269/147 C [???] | 04:15 |
| duflu | Control 0xc9: +/513/65535 C [???] | 04:16 |
| duflu | Control 0xca: +/0/2 [???] | 04:16 |
| duflu | Control 0xcc: +/2/11 [???] | 04:16 |
| duflu | Control 0xd6: +/1/65535 C [DPMS Control - On] | 04:16 |
| duflu | Control 0xdc: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xdf: +/513/65535 C [???] | 04:16 |
| duflu | Control 0xe0: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xe1: +/0/65535 C [Power control - Off] | 04:16 |
| duflu | Control 0xe2: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xe3: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xe4: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xf0: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xf1: +/3/65535 C [???] | 04:16 |
| duflu | Control 0xf2: +/0/65535 C [???] | 04:16 |
| duflu | Control 0xfd: +/102/65535 C [???] | 04:16 |
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| alan_g | greyback: question answered? https://code.launchpad.net/~raof/mir/plumb-through-edid/+merge/312008 | 10:22 |
| greyback | alan_g: yep | 10:23 |
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| applemuncy_1 | qtmir.surfaces: MirSurface[0x1f3b9e8,"unity8-dash"]::resize old (1920,1011), new (1080,1851) | 12:17 |
| applemuncy_1 | WxH or HxW ? | 12:17 |
| alan_g | applemuncy_1: I've no special knowledge of qtmir, but WxH is normal | 12:25 |
| applemuncy_1 | Thanks : ) | 12:29 |
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| greyback | yep, WxH | 12:38 |
| === dandrader|afk is now known as dandrader | ||
| === JanC is now known as Guest103 | ||
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| bschaefer | fritsch, hey, soo saw kodi just bump to 18, was there anything else i need to do for the mir PR? | 18:17 |
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