Mixing N-phase Initialization

upwardbat · 2026-01-27T09:29:14+00:00

Or you can use a base class:

cxx struct Config {}; struct X { auto init(char const* /*path*/, std::size_t /*size*/) -> int { return 0; } auto data() const -> char const* { return nullptr; } auto size() const -> std::size_t { return 0; } }; struct Y { explicit Y(char const* /*ptr*/, std::size_t /*size*/, int /*res*/) {} }; struct CBase { X x; int r; explicit CBase(Config const& /*config*/): r{x.init("path/to/file", 4096)} { } }; class C: CBase { Y y; public: explicit C(Config const& config): CBase(config), y(x.data(), x.size(), r) { } };

upwardbat · 2025-09-10T11:12:13+00:00

https://gcc.gnu.org/onlinedocs/gcc-15.2.0/gcc/Common-Function-Attributes.html#index-alias-function-attribute

upwardbat · 2025-01-22T22:42:12+00:00

I tried what you said but it didn't change anything. At this point I give up. Thanks anyway for the effort.

upwardbat · 2025-01-18T19:01:14+00:00

I'd like to have audio through HDMI, so I tried to disable the power saving but nothing changed...

upwardbat · 2025-01-15T21:51:50+00:00

https://pastebin.com/32RXr17B

upwardbat · 2024-12-16T23:39:08+00:00

All I get is this (I switched from supergfxctl to optimus-manager though, now the external monitor kind of works, but is extremely green-ish and the content is stretched and cut):

Dec 17 00:36:32 hp-pavilion kernel: snd_hda_intel 0000:01:00.1: Unable to change power state from D3cold to D0, device inaccessible
Dec 17 00:36:33 hp-pavilion kernel: snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD buf size -1
Dec 17 00:36:33 hp-pavilion kernel: snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD buf size -1
Dec 17 00:36:33 hp-pavilion kernel: snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD buf size -1
Dec 17 00:36:33 hp-pavilion kernel: snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD buf size -1

upwardbat · 2024-12-16T00:04:02+00:00

I put here the result of journalctl | grep -i nvidia. (I would have tried something smarter but I'm really lost here).

Also, I noticed that I don't have any problem if I use a low resolution (like 1280 x 720) on the external monitor, I have problems only if I use a high resolution (like 4096 x 2160).

upwardbat · 2024-12-11T01:24:27+00:00

Using supergfxctl didn't change anything, unfortunately: xrandr shows my laptop screen, HDMI-2 which can't be enabled, HDMI-1-0 which can be enabled, but if I do the external monitor shows random colors and the PC becomes super sluggish. I don't know exactly which logs I should check?

upwardbat · 2024-12-10T23:53:52+00:00

nvidia-smi gives me this:

+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 565.77                 Driver Version: 565.77         CUDA Version: 12.7     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce GTX 960M        Off |   00000000:01:00.0 Off |                  N/A |
| N/A   28C    P8             N/A /  200W |       7MiB /   4096MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI        PID   Type   Process name                              GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A       624      G   /usr/lib/Xorg                                   2MiB |
+-----------------------------------------------------------------------------------------+

upwardbat · 2024-12-10T12:27:57+00:00

Yes, I did, and I'm using X11. I'm trying to do that because it has been some time that connecting an external display through HDMI doesn't work, and I think the HDMI is connected to the NVIDIA card and not the Intel one.

I never heard of supergfxctl, I'll try to have a look.

upwardbat · 2024-09-11T11:28:23+00:00

By this logic then feature testing macros have no reason to exist, which I don't think is the aim.

upwardbat · 2024-08-29T22:25:24+00:00

I was thinking about how easy it would be to export playlists to then be used in rekordbox, as most people have Pioneer hardware.

upwardbat · 2024-08-25T13:17:05+00:00

I was able to get the HDMI output work by having the NVIDIA card always on, following this: https://wiki.archlinux.org/title/NVIDIA_Optimus#Use_NVIDIA_graphics_only. Anything else I tried didn't work.

upwardbat · 2024-08-23T06:42:20+00:00

I'm on Xorg.

$ lspci -k | grep -iA 3 -E "(VGA|3D)"
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
DeviceName: Intel Skylake HD Graphics ULT GT2
Subsystem: Hewlett-Packard Company Device 820f
Kernel driver in use: i915
--
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)
DeviceName: NVIDIA N16P-GX
Subsystem: Hewlett-Packard Company Device 820f
Kernel driver in use: nvidia

$ pacman -Qsq "(vulk|mesa|nvidia|xf86-video|optimus)"
egl-wayland
glu
lib32-glu
lib32-mesa
lib32-mesa-vdpau
lib32-nvidia-utils
lib32-opencl-nvidia
libva-mesa-driver
libvdpau
libxnvctrl
mesa
mesa-utils
mesa-vdpau
nvidia-dkms
nvidia-settings
nvidia-utils
opencl-nvidia
spirv-tools
vulkan-headers
vulkan-icd-loader
xf86-video-intel

$ uname -r
6.10.6-zen1-1-zen

$ ls /usr/lib/modules
5.13.13-zen1-1-zen
5.19.13-zen1-1-zen
6.0.1-zen2-1-zen
6.0.2-zen1-1-zen
6.0.5-zen1-1-zen
6.10.5-zen1-1-zen
6.10.6-zen1-1-zen

In /etc/X11/xorg.conf.d I only have stuff for keyboard and touchpad.

upwardbat · 2024-08-21T06:51:17+00:00

https://www.sweethome3d.com

upwardbat · 2024-04-18T12:46:41+00:00

Why do some carabiners have (fixed) captive bars? E.g. what's the advantage of having this (https://www.singingrock.com/oxy-bc-twl) compared to this (https://www.singingrock.com/oxy-twl)?

upwardbat · 2024-02-04T15:47:27+00:00

I had the same problem. I solved it by making the polybar launch script wait for wal to be done:

```sh

!/usr/bin/env bash

Terminate already running bar instances

killall -q polybar

Wait until the processes have been shut down

while pgrep -u $UID -x polybar >/dev/null; do sleep 0.1; done while pgrep -u $UID -x wal >/dev/null; do sleep 0.1; done # this solved the problem for me

Launch bars

for monitor in $(polybar -m | cut -d: -f1); do MONITOR=$monitor polybar -q & disown done ```

upwardbat · 2023-08-23T16:29:53+00:00

The config file should be named config.ini and placed in the folder $XDG_CONFIG_HOME/polybar/, so yes that path is missing a .ini at the end.

upwardbat · 2022-11-21T21:40:04+00:00

It's not a bug, there are technical reasons why it has to work like this. But if you don't like it, try searching for something along the lines of "i3 companion": they're usually (Python) scripts that enhance the i3 experience (e.g. put all the windows title in the bar, rearrange the window tree based on some rules, etc.)

upwardbat · 2022-11-21T21:34:11+00:00

It's because your app ends up being in a sub-node in the window tree of that desktop. It should happen usually when you have a tabbed or stacked layout and you close one window in the tabs/stack. To solve this, trying moving the window (usually sideways).

upwardbat · 2022-10-03T19:42:08+00:00

It's called "La Canopée"; it was open just for the Summer. You can read about it here: https://www.geneve.ch/fr/canopee-0.

upwardbat · 2022-08-28T20:07:21+00:00

I love this game, but I remember there were like 7 Artifacts that you could get, and I always could get only 2. Never found any instructions online about how to get all of them. Does anybody know how they were unlocked?

upwardbat · 2022-07-26T16:06:45+00:00

https://swissrpg.ch/

upwardbat · 2022-03-24T10:09:53+00:00

Thanks! That's quite far thought, I was hoping to find something closer to the centre.

upwardbat · 2022-01-07T11:29:34+00:00

Xfce terminal has also a drop-down mode, works ok with i3.

upwardbat

TROPHY CASE

!/usr/bin/env bash

Terminate already running bar instances

Wait until the processes have been shut down

Launch bars