<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - amdgpu display corruption and hang on AMD A10-9620P" href="https://bugs.freedesktop.org/show_bug.cgi?id=101387#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - amdgpu display corruption and hang on AMD A10-9620P" href="https://bugs.freedesktop.org/show_bug.cgi?id=101387">bug 101387</a> from <a class="email" href="mailto:carlo@caione.org" title="Carlo Caione <carlo@caione.org>"> Carlo Caione</a> <pre>> Looks like amdgpu_atombios_crtc_powergate_init scribbles over the stack. Yeah, and while this is causing the panic this is not related to the display corruption. The garbage lines we see at boot seem to be displayed at the same time when in the log we have: [drm] amdgpu atom DIG backlight initialized [drm] AMDGPU Display Connectors [drm] Connector 0: [drm] eDP-1 [drm] HPD1 [drm] DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b [drm] Encoders: [drm] LCD1: INTERNAL_UNIPHY [drm] Connector 1: [drm] HDMI-A-1 [drm] HPD2 [drm] DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY [drm] amdgpu atom DIG backlight initialized [drm] AMDGPU Display Connectors [drm] Connector 0: [drm] eDP-1 [drm] HPD1 [drm] DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b [drm] Encoders: [drm] LCD1: INTERNAL_UNIPHY [drm] Connector 1: [drm] HDMI-A-1 [drm] HPD2 [drm] DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY > What kind of artifacts in plymouth? <a href="https://pasteboard.co/hWu18yPj0.jpg">https://pasteboard.co/hWu18yPj0.jpg</a> > Does e.g. X work correctly? Yes, disabling the stack protection xorg works fine (no panic, but I still have the display corruption at boot and on poweroff/reboot)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>