[Discuss] display

[Daniel M Gessel]

Unfortunately, you don't have a GPU with drm drivers, but are using a 
drm layer for "dumb framebuffers" (simpledrm). This replaced fbdev 
drivers in Fedora 36 (see 
https://fedoraproject.org/wiki/Changes/ReplaceFbdevDrivers).

 From what I've read, it depends on graphics config in the BIOS, and 
supports whatever mode is set up on boot, or some VESA layer.

Have you ever gone into the BIOS settings on the laptop? If not, 
resetting might help.

Dan


On 2023-12-04 10:56, dan moylan wrote:
> daniel gessel wrote:
>> The tool "drm_info" will report details on available modes
>> (and much more) if you have relatively modern graphics
>> drivers. The package name has a hyphen instead of an
>> underscore: "drm-info".
> installed drm_info and got this:
>
> Node: /dev/dri/card0
> ├───Driver: simpledrm (DRM driver for simple-framebuffer platform devices) version 1.0.0 (20200625)
> │   ├───DRM_CLIENT_CAP_STEREO_3D supported
> │   ├───DRM_CLIENT_CAP_UNIVERSAL_PLANES supported
> │   ├───DRM_CLIENT_CAP_ATOMIC supported
> │   ├───DRM_CLIENT_CAP_ASPECT_RATIO supported
> │   ├───DRM_CLIENT_CAP_WRITEBACK_CONNECTORS supported
> │   ├───DRM_CAP_DUMB_BUFFER = 1
> │   ├───DRM_CAP_VBLANK_HIGH_CRTC = 1
> │   ├───DRM_CAP_DUMB_PREFERRED_DEPTH = 24
> │   ├───DRM_CAP_DUMB_PREFER_SHADOW = 0
> │   ├───DRM_CAP_PRIME = 3
> │   ├───DRM_CAP_TIMESTAMP_MONOTONIC = 1
> │   ├───DRM_CAP_ASYNC_PAGE_FLIP = 0
> │   ├───DRM_CAP_CURSOR_WIDTH = 64
> │   ├───DRM_CAP_CURSOR_HEIGHT = 64
> │   ├───DRM_CAP_ADDFB2_MODIFIERS = 1
> │   ├───DRM_CAP_PAGE_FLIP_TARGET = 0
> │   ├───DRM_CAP_CRTC_IN_VBLANK_EVENT = 1
> │   ├───DRM_CAP_SYNCOBJ = 0
> │   └───DRM_CAP_SYNCOBJ_TIMELINE = 0
> ├───Device: platform simple-framebuffer
> │   └───Available nodes: primary
> ├───Framebuffer size
> │   ├───Width: [1024, 4096]
> │   └───Height: [768, 4096]
> ├───Connectors
> │   └───Connector 0
> │       ├───Object ID: 35
> │       ├───Type: unknown
> │       ├───Status: connected
> │       ├───Physical size: 270x203 mm
> │       ├───Subpixel: unknown
> │       ├───Encoders: {0}
> │       ├───Modes
> │       │   └───1024x768 at 60.00 preferred driver
> │       └───Properties
> │           ├───"EDID" (immutable): blob = 0
> │           ├───"DPMS": enum {On, Standby, Suspend, Off} = On
> │           ├───"link-status": enum {Good, Bad} = Good
> │           ├───"non-desktop" (immutable): range [0, 1] = 0
> │           ├───"TILE" (immutable): blob = 0
> │           └───"CRTC_ID" (atomic): object CRTC = 33
> ├───Encoders
> │   └───Encoder 0
> │       ├───Object ID: 34
> │       ├───Type: none
> │       ├───CRTCS: {0}
> │       └───Clones: {0}
> ├───CRTCs
> │   └───CRTC 0
> │       ├───Object ID: 33
> │       ├───Legacy info
> │       │   ├───Mode: 1024x768 at 60.00 preferred driver
> │       │   └───Gamma size: 0
> │       └───Properties
> │           ├───"ACTIVE" (atomic): range [0, 1] = 1
> │           ├───"MODE_ID" (atomic): blob = 39
> │           │   └───1024x768 at 60.00 preferred driver
> │           ├───"OUT_FENCE_PTR" (atomic): range [0, UINT64_MAX] = 0
> │           └───"VRR_ENABLED": range [0, 1] = 0
> └───Planes
>      └───Plane 0
>          ├───Object ID: 31
>          ├───CRTCs: {0}
>          ├───Legacy info
>          │   ├───FB ID: 38
>          │   │   ├───Object ID: 38
>          │   │   ├───Size: 1024x768
>          │   │   ├───Format: XRGB8888 (0x34325258)
>          │   │   ├───Modifier: DRM_FORMAT_MOD_LINEAR (0x0)
>          │   │   └───Planes:
>          │   │       └───Plane 0: offset = 0, pitch = 4096 bytes
>          │   └───Formats:
>          │       └───XRGB8888 (0x34325258)
>          └───Properties
>              ├───"type" (immutable): enum {Overlay, Primary, Cursor} = Primary
>              ├───"FB_ID" (atomic): object framebuffer = 38
>              │   ├───Object ID: 38
>              │   ├───Size: 1024x768
>              │   ├───Format: XRGB8888 (0x34325258)
>              │   ├───Modifier: DRM_FORMAT_MOD_LINEAR (0x0)
>              │   └───Planes:
>              │       └───Plane 0: offset = 0, pitch = 4096 bytes
>              ├───"IN_FENCE_FD" (atomic): srange [-1, INT32_MAX] = -1
>              ├───"CRTC_ID" (atomic): object CRTC = 33
>              ├───"CRTC_X" (atomic): srange [INT32_MIN, INT32_MAX] = 0
>              ├───"CRTC_Y" (atomic): srange [INT32_MIN, INT32_MAX] = 0
>              ├───"CRTC_W" (atomic): range [0, INT32_MAX] = 1024
>              ├───"CRTC_H" (atomic): range [0, INT32_MAX] = 768
>              ├───"SRC_X" (atomic): range [0, UINT32_MAX] = 0
>              ├───"SRC_Y" (atomic): range [0, UINT32_MAX] = 0
>              ├───"SRC_W" (atomic): range [0, UINT32_MAX] = 1024
>              ├───"SRC_H" (atomic): range [0, UINT32_MAX] = 768
>              ├───"IN_FORMATS" (immutable): blob = 32
>              │   └───DRM_FORMAT_MOD_LINEAR (0x0)
>              │       └───XRGB8888 (0x34325258)
>              └───"FB_DAMAGE_CLIPS" (atomic): blob = 41
>
> don't know what to do.
>
> tia,
> ole dan
>
> j. daniel moylan
> 84 harvard ave
> brookline, ma 02446-6202
> 617-777-0207 (cel)
> jdm at moylan.us
> www.moylan.us
> [BLM]
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