[BUG] GPU summary doesn't look nice when not all GPUs report power

[RenaKunisaki]

Describe the bug

When a system has more than one GPU, but only one of them reports its power consumption, the bars in the CPU box don't look very nice.

To Reproduce

Run btop on a system with such configuration.

Expected behavior

The bars should be aligned, with the missing power information being empty.

Screenshots

Info (please complete the following information):

• btop++ version: btop version: 1.4.0; Compiled with: g++ (14.2.1); Configured with: make STATIC= FORTIFY_SOURCE=true GPU_SUPPORT=true RSMI_STATIC=
• Binary: from Artix repo
• Architecture: x86_64
• Platform: Artix Linux
• (Linux) Kernel: 6.6.69-1-lts
• Terminal used: lxterminal
• Font used: Monospace Regular 15

Additional context

Contents of ~/.config/btop/btop.log

2025/01/09 (18:31:28) | ===> btop++ v.1.4.0
2025/01/09 (18:31:28) | DEBUG: Running in DEBUG mode!
2025/01/09 (18:31:28) | INFO: Logger set to DEBUG
2025/01/09 (18:31:28) | DEBUG: Using locale en_CA.UTF-8
2025/01/09 (18:31:28) | INFO: Running on /dev/pts/5
2025/01/09 (18:31:28) | DEBUG: Failed to initialize NVML, NVIDIA GPUs will not be detected: Driver Not Loaded
2025/01/09 (18:31:28) | WARNING: ROCm SMI: Failed to get maximum GPU temperature, defaulting to 110°C
2025/01/09 (18:31:28) | WARNING: ROCm SMI: Failed to get maximum GPU power draw, defaulting to 225W
2025/01/09 (18:31:28) | WARNING: ROCm SMI: Failed to get maximum GPU temperature, defaulting to 110°C
2025/01/09 (18:31:28) | WARNING: ROCm SMI: Failed to get VRAM utilization
2025/01/09 (18:31:28) | WARNING: ROCm SMI: Failed to get GPU power usage
2025/01/09 (18:31:28) | WARNING: ROCm SMI: Failed to get PCIe throughput
2025/01/09 (18:31:28) | DEBUG: Failed to find Intel GPU sysfs path, Intel GPUs will not be detected
2025/01/09 (18:31:28) | DEBUG: Shared::init() : Initialized.
2025/01/09 (18:31:29) | DEBUG: Writing new config file
2025/01/09 (18:31:29) | INFO: Quitting! Runtime: 00:00:01

GDB Backtrace
N/A