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-----Original Message----- From: Greg KH gregkh@linuxfoundation.org Sent: Tuesday, April 8, 2025 2:45 AM To: Deucher, Alexander Alexander.Deucher@amd.com Cc: stable@vger.kernel.org; sashal@kernel.org; Pillai, Aurabindo Aurabindo.Pillai@amd.com; Li, Sun peng (Leo) Sunpeng.Li@amd.com; Mohamed, Zaeem Zaeem.Mohamed@amd.com; Wheeler, Daniel Daniel.Wheeler@amd.com Subject: Re: [PATCH] drm/amd/display: Temporarily disable hostvm on DCN31
On Mon, Apr 07, 2025 at 07:43:29PM -0400, Alex Deucher wrote:
From: Aurabindo Pillai aurabindo.pillai@amd.com
With HostVM enabled, DCN31 fails to pass validation for 3x4k60. Some Linux userspace does not downgrade one of the monitors to 4k30, and the result is that the monitor does not light up. Disable it until the bandwidth calculation failure is resolved.
Reviewed-by: Sun peng Li sunpeng.li@amd.com Signed-off-by: Aurabindo Pillai aurabindo.pillai@amd.com Signed-off-by: Zaeem Mohamed zaeem.mohamed@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com (cherry picked from commit ba93dddfc92084a1e28ea447ec4f8315f3d8d3fd) Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
What tree(s) is this for?
6.10 and newer.
Thanks,
Alex