Fix Markdown in article about camera in Ubuntu

torrocus · Sep 23, 2024 · c089abb · c089abb
1 parent fac7852
commit c089abb
Showing 1 changed file with 76 additions and 70 deletions.
diff --git a/_posts/2024-09-23-problem-with-camera-in-ubuntu.md b/_posts/2024-09-23-problem-with-camera-in-ubuntu.md
@@ -43,7 +43,7 @@ ls: cannot access '/dev/video*': No such file or directory
 
 On my laptop, the same command looks like this:
 
-```
+```console
 $ sudo ls -l /dev/video*
 crw-rw----+ 1 root video 81, 0 /dev/video0
 crw-rw----+ 1 root video 81, 1 /dev/video1
@@ -58,8 +58,8 @@ which groups your user is directly assigned to.
 
 If needed, you can add your user to the `video` group:
 
-```
-$ sudo usermod -aG video $USER
+```console
+sudo usermod -aG video $USER
 ```
 
 Ubuntu has tools to manage video from the command line.
@@ -93,47 +93,49 @@ Cannot open device /dev/video0, exiting.
 
 For comparison, I ran the same command on my laptop:
 
+<!-- markdownlint-disable MD013 -->
 ```console
 $ sudo v4l2-ctl --list-devices -D
 USB2.0 HD UVC WebCam: USB2.0 HD (usb-0000:00:14.0-5):
-	/dev/video0
-	/dev/video1
-	/dev/media0
+  /dev/video0
+  /dev/video1
+  /dev/media0
 
 Driver Info:
-	Driver name      : uvcvideo
-	Card type        : USB2.0 HD UVC WebCam: USB2.0 HD
-	Bus info         : usb-0000:00:14.0-5
-	Driver version   : 6.8.12
-	Capabilities     : 0x84a00001
-		Video Capture
-		Metadata Capture
-		Streaming
-		Extended Pix Format
-		Device Capabilities
-	Device Caps      : 0x04200001
-		Video Capture
-		Streaming
-		Extended Pix Format
+  Driver name      : uvcvideo
+  Card type        : USB2.0 HD UVC WebCam: USB2.0 HD
+  Bus info         : usb-0000:00:14.0-5
+  Driver version   : 6.8.12
+  Capabilities     : 0x84a00001
+    Video Capture
+    Metadata Capture
+    Streaming
+    Extended Pix Format
+    Device Capabilities
+  Device Caps      : 0x04200001
+    Video Capture
+    Streaming
+    Extended Pix Format
 Media Driver Info:
-	Driver name      : uvcvideo
-	Model            : USB2.0 HD UVC WebCam: USB2.0 HD
-	Serial           : 0x0001
-	Bus info         : usb-0000:00:14.0-5
-	Media version    : 6.8.12
-	Hardware revision: 0x00005828 (22568)
-	Driver version   : 6.8.12
+  Driver name      : uvcvideo
+  Model            : USB2.0 HD UVC WebCam: USB2.0 HD
+  Serial           : 0x0001
+  Bus info         : usb-0000:00:14.0-5
+  Media version    : 6.8.12
+  Hardware revision: 0x00005828 (22568)
+  Driver version   : 6.8.12
 Interface Info:
-	ID               : 0x03000002
-	Type             : V4L Video
+  ID               : 0x03000002
+  Type             : V4L Video
 Entity Info:
-	ID               : 0x00000001 (1)
-	Name             : USB2.0 HD UVC WebCam: USB2.0 HD
-	Function         : V4L2 I/O
-	Flags            : default
-	Pad 0x01000007   : 0: Sink
-	  Link 0x02000010: from remote pad 0x100000a of entity 'Extension 4' (Video Pixel Formatter): Data, Enabled, Immutable
+  ID               : 0x00000001 (1)
+  Name             : USB2.0 HD UVC WebCam: USB2.0 HD
+  Function         : V4L2 I/O
+  Flags            : default
+  Pad 0x01000007   : 0: Sink
+    Link 0x02000010: from remote pad 0x100000a of entity 'Extension 4' (Video Pixel Formatter): Data, Enabled, Immutable
 ```
+<!-- markdownlint-enable MD013 -->
 
 The system is up to date.
 The laptop is not damaged.
@@ -152,50 +154,52 @@ crw-rw----+ 1 root video 81, 2 /dev/video2
 crw-rw----+ 1 root video 81, 3 /dev/video3
 ```
 
+<!-- markdownlint-disable MD013 -->
 ```console
 $ sudo v4l2-ctl --list-devices -D
 Chicony USB2.0 Camera: Chicony  (usb-0000:00:14.0-7):
-	/dev/video0
-	/dev/video1
-	/dev/video2
-	/dev/video3
-	/dev/media0
-	/dev/media1
+  /dev/video0
+  /dev/video1
+  /dev/video2
+  /dev/video3
+  /dev/media0
+  /dev/media1
 
 Driver Info:
-	Driver name      : uvcvideo
-	Card type        : Chicony USB2.0 Camera: Chicony
-	Bus info         : usb-0000:00:14.0-7
-	Driver version   : 6.2.16
-	Capabilities     : 0x84a00001
-		Video Capture
-		Metadata Capture
-		Streaming
-		Extended Pix Format
-		Device Capabilities
-	Device Caps      : 0x04200001
-		Video Capture
-		Streaming
-		Extended Pix Format
+  Driver name      : uvcvideo
+  Card type        : Chicony USB2.0 Camera: Chicony
+  Bus info         : usb-0000:00:14.0-7
+  Driver version   : 6.2.16
+  Capabilities     : 0x84a00001
+    Video Capture
+    Metadata Capture
+    Streaming
+    Extended Pix Format
+    Device Capabilities
+  Device Caps      : 0x04200001
+    Video Capture
+    Streaming
+    Extended Pix Format
 Media Driver Info:
-	Driver name      : uvcvideo
-	Model            : Chicony USB2.0 Camera: Chicony
-	Serial           : 01.00.00
-	Bus info         : usb-0000:00:14.0-7
-	Media version    : 6.2.16
-	Hardware revision: 0x00000002 (2)
-	Driver version   : 6.2.16
+  Driver name      : uvcvideo
+  Model            : Chicony USB2.0 Camera: Chicony
+  Serial           : 01.00.00
+  Bus info         : usb-0000:00:14.0-7
+  Media version    : 6.2.16
+  Hardware revision: 0x00000002 (2)
+  Driver version   : 6.2.16
 Interface Info:
-	ID               : 0x03000002
-	Type             : V4L Video
+  ID               : 0x03000002
+  Type             : V4L Video
 Entity Info:
-	ID               : 0x00000001 (1)
-	Name             : Chicony USB2.0 Camera: Chicony
-	Function         : V4L2 I/O
-	Flags            : default
-	Pad 0x01000007   : 0: Sink
-	  Link 0x02000013: from remote pad 0x100000a of entity 'Extension 4' (Video Pixel Formatter): Data, Enabled, Immutable
+  ID               : 0x00000001 (1)
+  Name             : Chicony USB2.0 Camera: Chicony
+  Function         : V4L2 I/O
+  Flags            : default
+  Pad 0x01000007   : 0: Sink
+    Link 0x02000013: from remote pad 0x100000a of entity 'Extension 4' (Video Pixel Formatter): Data, Enabled, Immutable
 ```
+<!-- markdownlint-enable MD013 -->
 
 It looks like a **restart** did the trick.
 The cause of the issue is unknown,
@@ -207,12 +211,14 @@ or `journalctl -xe` might provide more insight.
 
 So far I don't see anything disturbing:
 
+<!-- markdownlint-disable MD013 -->
 ```console
 $ sudo dmesg | grep video
 [    3.097705] videodev: Linux video capture interface: v2.00
 [    3.211353] usbcore: registered new interface driver uvcvideo
 [    4.791222] ACPI: video: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
 ```
+<!-- markdownlint-enable MD013 -->
 
 However, deeper research allowed me to better understand
 the possible causes of the problems.