DP handshake/DPMS wake-up issue

aaron16 — Tue, 12 May 2026 14:09:56 GMT

GPU: Intel Arc B580
CPU: AMD Ryzen 7 7700
Motherboard: MSI B650-B
Monitor: Hisense G5 Pro 27 inch 2K 180Hz (Connected via DisplayPort)
OS: Windows 11
Driver Version: 32.0.101.8737

Issue Description:
After the display turns off due to Windows screen timeout (or sleep), moving the mouse/keyboard wakes up the PC (fans spin, system runs), but the monitor remains black with a "No Signal" message.

Workaround used:
The only way to get the display back is to hard reboot the PC or physically unplug and re-plug the DisplayPort cable. This seems to be a DP handshake/DPMS wake-up issue with the new driver.

Re: DP handshake/DPMS wake-up issue

aaron16 — Tue, 12 May 2026 14:26:29 GMT

GPU: Intel Arc B580 (Maxsun Milestone 12G)
CPU: AMD Ryzen 7 7700
Motherboard: MSI PRO B650M-B
Memory: 32GB 16GBx2 DDR5 6000MHz
Power Supply: MSI MAG A650BNL 650W
Storage: Kingston KC3000 1TB M.2 SSD
Monitor: Hisense G5 Pro 27 inch 2K 180Hz via DisplayPort
OS: Windows 11
Driver Version: 32.0.101.8737
Issue: After the monitor enters power-saving mode, the PC fails to restore the signal. The system wakes up but the monitor shows No Signal.
Steps: 1. System is running. 2. Wait for screen timeout. 3. Wake up PC via mouse or keyboard. 4. Monitor stays black with No Signal. 5. Only replugging the DP cable restores the display.
Workaround: I have to hard reboot or replug the DP cable. Clean driver install via DDU does not fix this.

topic Re: DP handshake/DPMS wake-up issue in Intel® Arc™ Discrete Graphics

DP handshake/DPMS wake-up issue

Re: DP handshake/DPMS wake-up issue