Ils proposent de modifier le GRUB dans le post que tu m'as transmis.
Je pensais que le GRUB ne gérait que le démarrage en multi-boot, mais apparemment, il a une incidence sur la mise/sortie de veille.
VOilà, pour la commande que tu m'as demandée :
03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c2) (prog-if 00 [VGA controller])
Subsystem: Huawei Technologies Co., Ltd. Picasso [19e5:3e19]
Flags: bus master, fast devsel, latency 0, IRQ 68
Memory at b0000000 (64-bit, prefetchable) [size=256M]
Memory at c0000000 (64-bit, prefetchable) [size=2M]
I/O ports at 1000 [size=256]
Memory at c0500000 (32-bit, non-prefetchable) [size=512K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [64] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/4 Maskable- 64bit+
Capabilities: [c0] MSI-X: Enable- Count=3 Masked-
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [200] Resizable BAR <?>
Capabilities: [270] Secondary PCI Express
Capabilities: [2a0] Access Control Services
Capabilities: [2b0] Address Translation Service (ATS)
Capabilities: [2c0] Page Request Interface (PRI)
Capabilities: [2d0] Process Address Space ID (PASID)
Capabilities: [320] Latency Tolerance Reporting
Kernel driver in use: amdgpu
Kernel modules: amdgpu
Merci.
Max.