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da3baba980
The intel DRM driver is known for not being able to handle multi head setups when KMS modifiers are enabled, due to the implicitly selected modifiers, while being more suitable for single head setups, cause bandwidth issues when a certain number of monitor times resolution and refresh rate is configured. We don't yet support automatically finding a combination of modifiers that work, and have because of this disabled KMS modifiers unless the driver actually needs it. Lets flip this configuration the other way around, changing the current udev rule to decide wen to *disable* KMS modifier support, as it so that only the Intel driver has this problem, while on the other hand, there several drivers that requires modifiers to function at all. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1792>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* Copyright (C) 2018 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*/
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#ifndef META_UDEV_H
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#define META_UDEV_H
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#include <gudev/gudev.h>
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#include "backends/native/meta-backend-native-types.h"
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#define META_TYPE_UDEV (meta_udev_get_type ())
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G_DECLARE_FINAL_TYPE (MetaUdev, meta_udev, META, UDEV, GObject)
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gboolean meta_is_udev_device_platform_device (GUdevDevice *device);
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gboolean meta_is_udev_device_boot_vga (GUdevDevice *device);
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gboolean meta_is_udev_device_disable_modifiers (GUdevDevice *device);
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gboolean meta_is_udev_device_preferred_primary (GUdevDevice *device);
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gboolean meta_udev_is_drm_device (MetaUdev *udev,
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GUdevDevice *device);
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GList * meta_udev_list_drm_devices (MetaUdev *udev,
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GError **error);
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MetaUdev * meta_udev_new (MetaBackendNative *backend_native);
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#endif /* META_UDEV_H */
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