upstream-archive/stable-diffusion.cpp
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fix: avoid generating black images when running T5 on the GPU (#882)

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leejet
2025-10-13 00:01:06 +08:00
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parent 9727c6bb98
commit 1c32fa03bc
2 changed files with 4 additions and 12 deletions
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12
stable-diffusion.cpp
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@@ -338,17 +338,7 @@ public:
bool clip_on_cpu = sd_ctx_params->keep_clip_on_cpu;
{
clip_backend = backend;
bool use_t5xxl = false;
if (sd_version_is_dit(version) && !sd_version_is_qwen_image(version)) {
use_t5xxl = true;
}
if (!clip_on_cpu && !ggml_backend_is_cpu(backend) && use_t5xxl) {
LOG_WARN(
"!!!It appears that you are using the T5 model. Some backends may encounter issues with it."
"If you notice that the generated images are completely black,"
"try running the T5 model on the CPU using the --clip-on-cpu parameter.");
}
clip_backend = backend;
if (clip_on_cpu && !ggml_backend_is_cpu(backend)) {
LOG_INFO("CLIP: Using CPU backend");
clip_backend = ggml_backend_cpu_init();