<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Black screen when detaching HDMI cable (AMD A10-9620P)" href="https://bugs.freedesktop.org/show_bug.cgi?id=101499#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Black screen when detaching HDMI cable (AMD A10-9620P)" href="https://bugs.freedesktop.org/show_bug.cgi?id=101499">bug 101499</a> from <a class="email" href="mailto:carlo@caione.org" title="Carlo Caione <carlo@caione.org>"> Carlo Caione</a> <pre>Created <a href="attachment.cgi?id=132118" name="attach_132118" title="journal_HDMI_detaching_corruption">attachment 132118</a> <a href="attachment.cgi?id=132118&action=edit" title="journal_HDMI_detaching_corruption">[details]</a> journal_HDMI_detaching_corruption > Without seeing the corresponding Xorg log, I guess that's just > a different symptom triggered by the same issue. Attached the log. Yeah, not much different. > With an amd-staging-* kernel branch and DC enabled, you can try tweaking > dce_v11_0_crtc_do_set_base to pass AMDGPU_GEM_DOMAIN_GTT instead of / in > addition to AMDGPU_GEM_DOMAIN_VRAM to amdgpu_bo_pin. The DC code should > already handle this correctly, but we're not sure whether or not there are > additional constraints on system memory used for scanout. If there are, it > probably won't work correctly yet. I tried amd-staging-4.11 and interestingly dce_v11_0_crtc_do_set_base is called only when DC is disabled. When DRM_AMD_DC=y the function is never called. I tried also to make the s/AMDGPU_GEM_DOMAIN_VRAM/AMDGPU_GEM_DOMAIN_GTT/ change with DC disabled. What I get is that I have some kind of intermittent display corruption when _connecting_ the HDMI cable on both the screens but on detaching at least everything is fine on the laptop panel.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>