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#1 2020-08-02 04:05:07

shadeless
Member
Registered: 2013-05-26
Posts: 83

[SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

I am trying to use an Arduino Uno, but I am unable to access the serial port, I have followed the wiki guide in installing the arduino packages.

I have installed the arduino and arduino-avr-core packages from the standard repository.

I confirm that I am in the uucp group.

[~] groups raphaelc                                                                                                                                                                                                                     
lock tty uucp docker raphaelc

Am I missing a step? I have looked at posts from others with similar issues, but comments of those posts suggest that their workaround is outdated and the arch linux arduino package should work without changing ownership of

I looked at the ownership of the lock directory and find that the contents are owned by root

[~] ls -l /var/lock/                                                                                                                                                                                                                         
total 4
-rw-r--r-- 1 root root 22 Aug  1 20:27 asound.state.lock
drwxrwxrwt 2 root root 40 Aug  1 20:26 dmraid
drwx------ 2 root root 40 Aug  1 20:26 lvm
drwxr-xr-x 2 root root 40 Aug  1 20:26 subsys

I looked at the ownership of /dev/tty*

[~] ls -l /dev/tty*                                                                                                                                                                                                                          
crw-rw-rw- 1 root     tty  5,  0 Aug  1 20:33 /dev/tty
crw--w---- 1 root     tty  4,  0 Aug  1 20:26 /dev/tty0
crw--w---- 1 root     tty  4,  1 Aug  1 20:26 /dev/tty1
crw--w---- 1 root     tty  4, 10 Aug  1 20:26 /dev/tty10
crw--w---- 1 root     tty  4, 11 Aug  1 20:26 /dev/tty11
crw--w---- 1 root     tty  4, 12 Aug  1 20:26 /dev/tty12
crw--w---- 1 root     tty  4, 13 Aug  1 20:26 /dev/tty13
crw--w---- 1 root     tty  4, 14 Aug  1 20:26 /dev/tty14
crw--w---- 1 root     tty  4, 15 Aug  1 20:26 /dev/tty15
crw--w---- 1 root     tty  4, 16 Aug  1 20:26 /dev/tty16
crw--w---- 1 root     tty  4, 17 Aug  1 20:26 /dev/tty17
crw--w---- 1 root     tty  4, 18 Aug  1 20:26 /dev/tty18
crw--w---- 1 root     tty  4, 19 Aug  1 20:26 /dev/tty19
crw--w---- 1 raphaelc tty  4,  2 Aug  1 20:27 /dev/tty2
crw--w---- 1 root     tty  4, 20 Aug  1 20:26 /dev/tty20
crw--w---- 1 root     tty  4, 21 Aug  1 20:26 /dev/tty21
crw--w---- 1 root     tty  4, 22 Aug  1 20:26 /dev/tty22
crw--w---- 1 root     tty  4, 23 Aug  1 20:26 /dev/tty23
crw--w---- 1 root     tty  4, 24 Aug  1 20:26 /dev/tty24
crw--w---- 1 root     tty  4, 25 Aug  1 20:26 /dev/tty25
crw--w---- 1 root     tty  4, 26 Aug  1 20:26 /dev/tty26
crw--w---- 1 root     tty  4, 27 Aug  1 20:26 /dev/tty27
crw--w---- 1 root     tty  4, 28 Aug  1 20:26 /dev/tty28
crw--w---- 1 root     tty  4, 29 Aug  1 20:26 /dev/tty29
crw--w---- 1 root     tty  4,  3 Aug  1 20:26 /dev/tty3
crw--w---- 1 root     tty  4, 30 Aug  1 20:26 /dev/tty30
crw--w---- 1 root     tty  4, 31 Aug  1 20:26 /dev/tty31
crw--w---- 1 root     tty  4, 32 Aug  1 20:26 /dev/tty32
crw--w---- 1 root     tty  4, 33 Aug  1 20:26 /dev/tty33
crw--w---- 1 root     tty  4, 34 Aug  1 20:26 /dev/tty34
crw--w---- 1 root     tty  4, 35 Aug  1 20:26 /dev/tty35
crw--w---- 1 root     tty  4, 36 Aug  1 20:26 /dev/tty36
crw--w---- 1 root     tty  4, 37 Aug  1 20:26 /dev/tty37
crw--w---- 1 root     tty  4, 38 Aug  1 20:26 /dev/tty38
crw--w---- 1 root     tty  4, 39 Aug  1 20:26 /dev/tty39
crw--w---- 1 root     tty  4,  4 Aug  1 20:26 /dev/tty4
crw--w---- 1 root     tty  4, 40 Aug  1 20:26 /dev/tty40
crw--w---- 1 root     tty  4, 41 Aug  1 20:26 /dev/tty41
crw--w---- 1 root     tty  4, 42 Aug  1 20:26 /dev/tty42
crw--w---- 1 root     tty  4, 43 Aug  1 20:26 /dev/tty43
crw--w---- 1 root     tty  4, 44 Aug  1 20:26 /dev/tty44
crw--w---- 1 root     tty  4, 45 Aug  1 20:26 /dev/tty45
crw--w---- 1 root     tty  4, 46 Aug  1 20:26 /dev/tty46
crw--w---- 1 root     tty  4, 47 Aug  1 20:26 /dev/tty47
crw--w---- 1 root     tty  4, 48 Aug  1 20:26 /dev/tty48
crw--w---- 1 root     tty  4, 49 Aug  1 20:26 /dev/tty49
crw--w---- 1 root     tty  4,  5 Aug  1 20:26 /dev/tty5
crw--w---- 1 root     tty  4, 50 Aug  1 20:26 /dev/tty50
crw--w---- 1 root     tty  4, 51 Aug  1 20:26 /dev/tty51
crw--w---- 1 root     tty  4, 52 Aug  1 20:26 /dev/tty52
crw--w---- 1 root     tty  4, 53 Aug  1 20:26 /dev/tty53
crw--w---- 1 root     tty  4, 54 Aug  1 20:26 /dev/tty54
crw--w---- 1 root     tty  4, 55 Aug  1 20:26 /dev/tty55
crw--w---- 1 root     tty  4, 56 Aug  1 20:26 /dev/tty56
crw--w---- 1 root     tty  4, 57 Aug  1 20:26 /dev/tty57
crw--w---- 1 root     tty  4, 58 Aug  1 20:26 /dev/tty58
crw--w---- 1 root     tty  4, 59 Aug  1 20:26 /dev/tty59
crw--w---- 1 root     tty  4,  6 Aug  1 20:26 /dev/tty6
crw--w---- 1 root     tty  4, 60 Aug  1 20:26 /dev/tty60
crw--w---- 1 root     tty  4, 61 Aug  1 20:26 /dev/tty61
crw--w---- 1 root     tty  4, 62 Aug  1 20:26 /dev/tty62
crw--w---- 1 root     tty  4, 63 Aug  1 20:26 /dev/tty63
crw--w---- 1 root     tty  4,  7 Aug  1 20:26 /dev/tty7
crw--w---- 1 root     tty  4,  8 Aug  1 20:26 /dev/tty8
crw--w---- 1 root     tty  4,  9 Aug  1 20:26 /dev/tty9
crw-rw---- 1 root     uucp 4, 64 Aug  1 20:26 /dev/ttyS0
crw-rw---- 1 root     uucp 4, 65 Aug  1 20:26 /dev/ttyS1
crw-rw---- 1 root     uucp 4, 66 Aug  1 20:26 /dev/ttyS2
crw-rw---- 1 root     uucp 4, 67 Aug  1 20:26 /dev/ttyS3

Last edited by shadeless (2020-08-15 17:10:18)

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#2 2020-08-02 14:31:41

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,740

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

I would say that your fundamental problem is that there is no /dev/USBx or [/dev/ttyACMx in that last of devices.

Any chance you have updated your kernel and not rebooted?  Check the output of uname -a and of pacman -Q linux and ensure the versions match.
If not, disconnect your device, connect your device, and post what is added to the journal when you did that.

Last edited by ewaller (2020-08-02 14:31:57)


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#3 2020-08-02 16:10:21

shadeless
Member
Registered: 2013-05-26
Posts: 83

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

I tried to look at any changes in my journal by using the command

journalctl --since "5 minutes ago" -f

I plugged and unplugged my arduino multiple times, but didn't see any activity get logged in the journal.

I have rebooted my computer multiple times.

pacman -Q and uname -a return the same linux image

[~] uname -a                                                                                                                                                                                                                                 
Linux dmsearch 5.7.11-arch1-1 #1 SMP PREEMPT Wed, 29 Jul 2020 21:38:21 +0000 x86_64 GNU/Linux
[~]  pacman -Q linux                                                                                                                                                                                                                         
linux 5.7.11.arch1-1

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#4 2020-08-02 16:35:44

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,740

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

Try a different cable.   If the Arduino does not enumerate on the USB bus, there is no way it will show up as a device node.  Since there is nothing in the journal, it is not even trying.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#5 2020-08-02 18:04:28

shadeless
Member
Registered: 2013-05-26
Posts: 83

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

I tried a different cable without any luck.

I got some arduino output to show up on my journal, but that might be due to me messing around with the IDE rather than anything that's happening with the serial port.

 remoteURL='https://downloads.arduino.cc/packages/package_index.json', localPath='/home/raphaelc/.arduino15/cache/downloads.arduino.cc/packages/package_index.json', md5='MD5:929e1256b7e2eb00eae6b0fe2e456c8e', createdAt='2020-08-01T19:54:39.054489', cacheControl=CacheControl{maxAge=3600, isMustRevalidate=false, isNoCache=false, isNoStore=false}}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.109Z INFO c.a.u.n.HttpConnectionManager:153 [Timer-0] Connect to https://downloads.arduino.cc/packages/package_index.json, method=HEAD, request id=857AA6EC135E4E84
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.252Z INFO c.a.u.n.HttpConnectionManager:157 [Timer-0] Request complete URL="https://downloads.arduino.cc/packages/package_index.json", method=HEAD, response code=206, request id=857AA6EC135E4E84, headers={null=[HTTP/1.1 206 Partial Content], Server=[cloudflare], Content-Range=[bytes 0-314013/314014], Last-Modified=[Thu, 30 Jul 2020 10:32:23 GMT], X-Amz-Cf-Id=[ykuAHSKP59vnebTft1UVKARZIjEFGMDsIIvDMQtTOj8bC9i6hJyxbQ==], Set-Cookie=[__cfduid=d3e9a0c214e465887a7e717c153e17d851596390899; expires=Tue, 01-Sep-20 17:54:59 GMT; path=/; domain=.arduino.cc; HttpOnly; SameSite=Lax], Content-Length=[314014], Age=[1390], cf-request-id=[0451e915f70000f561a9961200000001], Content-Type=[application/json], X-Cache=[RefreshHit from cloudfront], CF-Ray=[5bc9aacffe94f561-SEA], X-Amz-Cf-Pop=[SEA19-C2], Connection=[keep-alive], x-amz-version-id=[8Z.m79THtePMb8l2ZjVqj4Ipp3bRL6i3], Date=[Sun, 02 Aug 2020 17:54:59 GMT], Via=[1.1 64f86ae1c24221f3a2e4d653d6dbc416.cloudfront.net (CloudFront)], x-amz-replication-status=[COMPLETED], CF-Cache-Status=[HIT], Cache-Control=[max-age=3600], ETag=["929e1256b7e2eb00eae6b0fe2e456c8e"], Vary=[Accept-Encoding], x-amz-request-id=[1D0DC4E0D85DA96A], alt-svc=[h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400], x-amz-id-2=[uCeIvjImApY0Yy7ieYL5EHz27gRNeBd2NQ+AQ+TI/vwdhbzIC2lQbi65pwmxXCScDs0m5wVj5bY=], Expect-CT=[max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"]}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.253Z INFO c.a.u.n.FileDownloaderCache:160 [Timer-0] Update cached info of https://downloads.arduino.cc/packages/package_index.json, createdAt 2020-08-01T19:54:39.054489, previous eTag 929e1256b7e2eb00eae6b0fe2e456c8e, last eTag 929e1256b7e2eb00eae6b0fe2e456c8e, cache control header CacheControl{maxAge=3600, isMustRevalidate=false, isNoCache=false, isNoStore=false}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.270Z INFO c.a.u.n.FileDownloaderCache:226 [Timer-0] Update cache file info in /home/raphaelc/.arduino15/cache/cache.json, number of cached files is 4
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.281Z INFO c.a.u.n.FileDownloader:210 [Timer-0] No need to download using cached file: FileCached{eTag='929e1256b7e2eb00eae6b0fe2e456c8e', lastETag='929e1256b7e2eb00eae6b0fe2e456c8e', remoteURL='https://downloads.arduino.cc/packages/package_index.json', localPath='/home/raphaelc/.arduino15/cache/downloads.arduino.cc/packages/package_index.json', md5='MD5:929e1256b7e2eb00eae6b0fe2e456c8e', createdAt='2020-08-02T10:54:59.254467', cacheControl=CacheControl{maxAge=3600, isMustRevalidate=false, isNoCache=false, isNoStore=false}}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.282Z INFO c.a.u.n.FileDownloader:174 [Timer-0] The file will be taken from the cache Optional[/home/raphaelc/.arduino15/cache/downloads.arduino.cc/packages/package_index.json]
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.283Z INFO c.a.u.n.FileDownloaderCache:149 [Timer-0] Get file cached is expire true, exist true, info FileCached{eTag='bdc417257d154a27d0f79f8b0a30c182', lastETag='null', remoteURL='https://downloads.arduino.cc/packages/package_index.json.sig', localPath='/home/raphaelc/.arduino15/cache/downloads.arduino.cc/packages/package_index.json.sig', md5='MD5:bdc417257d154a27d0f79f8b0a30c182', createdAt='2020-08-01T19:54:39.175463', cacheControl=CacheControl{maxAge=3600, isMustRevalidate=false, isNoCache=false, isNoStore=false}}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.284Z INFO c.a.u.n.HttpConnectionManager:153 [Timer-0] Connect to https://downloads.arduino.cc/packages/package_index.json.sig, method=HEAD, request id=B7592A52A2814C20
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.351Z INFO c.a.u.n.HttpConnectionManager:157 [Timer-0] Request complete URL="https://downloads.arduino.cc/packages/package_index.json.sig", method=HEAD, response code=206, request id=B7592A52A2814C20, headers={null=[HTTP/1.1 206 Partial Content], Server=[cloudflare], Content-Range=[bytes 0-542/543], Last-Modified=[Thu, 30 Jul 2020 10:38:38 GMT], X-Amz-Cf-Id=[ZFXrEkcx3c6fmoZX8Z4Pi6_0N_5kUkBuAfBdOwJkwQooc2ZirEUe4Q==], Set-Cookie=[__cfduid=d3e9a0c214e465887a7e717c153e17d851596390899; expires=Tue, 01-Sep-20 17:54:59 GMT; path=/; domain=.arduino.cc; HttpOnly; SameSite=Lax], Content-Length=[543], Age=[1389], cf-request-id=[0451e916590000f561a996b200000001], Content-Type=[application/pgp-signature], X-Cache=[RefreshHit from cloudfront], CF-Ray=[5bc9aad08f91f561-SEA], X-Amz-Cf-Pop=[SEA19-C2], Connection=[keep-alive], x-amz-version-id=[7dO._uxXVvwKgf10mVqXDwCL15Y3VOEz], Date=[Sun, 02 Aug 2020 17:54:59 GMT], Via=[1.1 57a21088b36c69a83578b5a5579df58f.cloudfront.net (CloudFront)], x-amz-replication-status=[PENDING], CF-Cache-Status=[HIT], Cache-Control=[max-age=3600], ETag=["bdc417257d154a27d0f79f8b0a30c182"], Vary=[Accept-Encoding], x-amz-request-id=[25F7475C7A4668DC], alt-svc=[h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400], x-amz-id-2=[mQEWXE3A7N2dAprXmc9G/fXwQHqzhQNE+U4lWlIS1WG2c8QMB+70wAAPw5albh6OPIDfe+dugdE=], Expect-CT=[max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"]}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.352Z INFO c.a.u.n.FileDownloaderCache:160 [Timer-0] Update cached info of https://downloads.arduino.cc/packages/package_index.json.sig, createdAt 2020-08-01T19:54:39.175463, previous eTag bdc417257d154a27d0f79f8b0a30c182, last eTag bdc417257d154a27d0f79f8b0a30c182, cache control header CacheControl{maxAge=3600, isMustRevalidate=false, isNoCache=false, isNoStore=false}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.358Z INFO c.a.u.n.FileDownloaderCache:226 [Timer-0] Update cache file info in /home/raphaelc/.arduino15/cache/cache.json, number of cached files is 4
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.360Z INFO c.a.u.n.FileDownloader:210 [Timer-0] No need to download using cached file: FileCached{eTag='bdc417257d154a27d0f79f8b0a30c182', lastETag='bdc417257d154a27d0f79f8b0a30c182', remoteURL='https://downloads.arduino.cc/packages/package_index.json.sig', localPath='/home/raphaelc/.arduino15/cache/downloads.arduino.cc/packages/package_index.json.sig', md5='MD5:bdc417257d154a27d0f79f8b0a30c182', createdAt='2020-08-02T10:54:59.353542', cacheControl=CacheControl{maxAge=3600, isMustRevalidate=false, isNoCache=false, isNoStore=false}}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.362Z INFO c.a.u.n.FileDownloader:174 [Timer-0] The file will be taken from the cache Optional[/home/raphaelc/.arduino15/cache/downloads.arduino.cc/packages/package_index.json.sig]
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.378Z INFO c.a.c.DownloadableContributionsDownloader:227 [Timer-0] Signature verified. url=https://downloads.arduino.cc/packages/package_index.json.sig, signature url=https://downloads.arduino.cc/packages/package_index.json.sig, file to verify=/tmp/package_index.json18299413676573030758.tmp, signature file=/tmp/package_index.json.sig11313232088539620359.tmp
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.387Z INFO c.a.c.p.ContributionInstaller:314 [Timer-0] Downloaded package index URL=[https://downloads.arduino.cc/packages/package_index.json]
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.391Z INFO c.a.u.n.FileDownloaderCache:149 [Timer-0] Get file cached is expire true, exist true, info FileCached{eTag='37b8c572bc4a032c782e8e3763e90fed', lastETag='null', remoteURL='https://downloads.arduino.cc/libraries/library_index.json.gz', localPath='/home/raphaelc/.arduino15/cache/downloads.arduino.cc/libraries/library_index.json.gz', md5='MD5:37b8c572bc4a032c782e8e3763e90fed', createdAt='2020-08-01T19:54:39.597401', cacheControl=CacheControl{maxAge=14400, isMustRevalidate=false, isNoCache=false, isNoStore=false}}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.393Z INFO c.a.u.n.HttpConnectionManager:153 [Timer-0] Connect to https://downloads.arduino.cc/libraries/library_index.json.gz, method=HEAD, request id=FE811EB3DD2F45A7
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.454Z INFO c.a.u.n.HttpConnectionManager:157 [Timer-0] Request complete URL="https://downloads.arduino.cc/libraries/library_index.json.gz", method=HEAD, response code=206, request id=FE811EB3DD2F45A7, headers={null=[HTTP/1.1 206 Partial Content], Server=[cloudflare], Content-Range=[bytes 0-1411203/1411204], Last-Modified=[Sat, 01 Aug 2020 14:34:53 GMT], X-Amz-Cf-Id=[y5yr-lBsDTvT8Nw96KNaTQLhbT01kKxJ6GlYMQFTOLCqmABU_qN5hQ==], Set-Cookie=[__cfduid=d3e9a0c214e465887a7e717c153e17d851596390899; expires=Tue, 01-Sep-20 17:54:59 GMT; path=/; domain=.arduino.cc; HttpOnly; SameSite=Lax], Content-Length=[1411204], Age=[11502], cf-request-id=[0451e916c40000f561a9975200000001], Content-Type=[application/json], X-Cache=[Miss from cloudfront], CF-Ray=[5bc9aad138adf561-SEA], X-Amz-Cf-Pop=[SEA19-C2], Connection=[keep-alive], x-amz-version-id=[nybrX1OiMFxfG0809kA_j_U72LxhO8Pf], Date=[Sun, 02 Aug 2020 17:54:59 GMT], Via=[1.1 4c7c693b007dfce603c83f138e31bccb.cloudfront.net (CloudFront)], x-amz-replication-status=[COMPLETED], CF-Cache-Status=[HIT], Cache-Control=[private, max-age=14400], ETag=["37b8c572bc4a032c782e8e3763e90fed"], Vary=[Accept-Encoding], x-amz-request-id=[222FDD32B160F458], alt-svc=[h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400], x-amz-id-2=[nxZi9JOipbvH0km2LSeyKGBKC6vs0CUT1a2V1iG2bU1MPf9JbtTPIp0/odd0TCWCzKHHqQmNQdY=], Expect-CT=[max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"]}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.456Z INFO c.a.u.n.FileDownloaderCache:160 [Timer-0] Update cached info of https://downloads.arduino.cc/libraries/library_index.json.gz, createdAt 2020-08-01T19:54:39.597401, previous eTag 37b8c572bc4a032c782e8e3763e90fed, last eTag 37b8c572bc4a032c782e8e3763e90fed, cache control header CacheControl{maxAge=14400, isMustRevalidate=false, isNoCache=false, isNoStore=false}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.468Z INFO c.a.u.n.FileDownloaderCache:226 [Timer-0] Update cache file info in /home/raphaelc/.arduino15/cache/cache.json, number of cached files is 4
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.491Z INFO c.a.u.n.FileDownloader:210 [Timer-0] No need to download using cached file: FileCached{eTag='37b8c572bc4a032c782e8e3763e90fed', lastETag='37b8c572bc4a032c782e8e3763e90fed', remoteURL='https://downloads.arduino.cc/libraries/library_index.json.gz', localPath='/home/raphaelc/.arduino15/cache/downloads.arduino.cc/libraries/library_index.json.gz', md5='MD5:37b8c572bc4a032c782e8e3763e90fed', createdAt='2020-08-02T10:54:59.458183', cacheControl=CacheControl{maxAge=14400, isMustRevalidate=false, isNoCache=false, isNoStore=false}}
Aug 02 10:54:59 dmsearch arduino.desktop[19818]: 2020-08-02T17:54:59.492Z INFO c.a.u.n.FileDownloader:174 [Timer-0] The file will be taken from the cache Optional[/home/raphaelc/.arduino15/cache/downloads.arduino.cc/libraries/library_index.json.gz]
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Aug 02 10:55:18 dmsearch gnome-shell[2091]: Window manager warning: WM_TRANSIENT_FOR window 0x2c0005c for 0x2c00061 window override-redirect is an override-redirect window and this is not correct according to the standard, so we'll fallback to the first non-override-redirect window 0x2c0000c.
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Aug 02 10:57:32 dmsearch gnome-shell[2091]: Window manager warning: Invalid WM_TRANSIENT_FOR window 0x0 specified for 0x2c00061.
Aug 02 10:57:42 dmsearch gnome-shell[2091]: Window manager warning: WM_TRANSIENT_FOR window 0x2c0005c for 0x2c00061 window override-redirect is an override-redirect window and this is not correct according to the standard, so we'll fallback to the first non-override-redirect window 0x2c0000c.
Aug 02 10:57:45 dmsearch gnome-shell[2091]: Window manager warning: WM_TRANSIENT_FOR window 0x2c0005c for 0x2c00061 window override-redirect is an override-redirect window and this is not correct according to the standard, so we'll fallback to the first non-override-redirect window 0x2c0000c.
Aug 02 10:57:47 dmsearch gnome-shell[2091]: Window manager warning: WM_TRANSIENT_FOR window 0x2c0005c for 0x2c00061 window override-redirect is an override-redirect window and this is not correct according to the standard, so we'll fallback to the first non-override-redirect window 0x2c0000c.
Aug 02 10:57:51 dmsearch gnome-shell[2091]: Window manager warning: WM_TRANSIENT_FOR window 0x2c0005c for 0x2c00061 window override-redirect is an override-redirect window and this is not correct according to the standard, so we'll fallback to the first non-override-redirect window 0x2c0000c.
Aug 02 10:58:01 dmsearch pcloud.desktop[2333]: Update for linux-x64-prod-v1.8.6 is not available

Perhaps the problem is my power management settings? But I can't see why that would be because I can plug a keyboard and mouse just fine.

I can perhaps test if my arduino is actually working properly. It seems to power up just fine. I'll have to figure out a way to test it.

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#6 2020-08-02 18:13:15

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,740

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

Do you have another Arduino?  Can you test your Arduino on another system?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#7 2020-08-04 02:52:49

shadeless
Member
Registered: 2013-05-26
Posts: 83

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

I tried it on my Windows partition and it didn't seem to work, so I'm guessing its my board. I ordered a new one and it might come in a week.

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#8 2020-08-04 14:30:39

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,740

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

What kind of Arduino is it?   Does it have a FTDI chip or second processor to do the serial to USB conversion (UNO, Mega, Nano)? or does it AtMega processor have integral USB (Leonardo)?
I have seen the Leonardo go stupid if a program is uploaded that does no serial I/O; you just cannot get the attention of the boot loader unless your are lucky.  Once you get the second Arduino, you can rig it as a ISP (In Circuit Programmer) and reflash the dead Arduino through the Atmel ISP header.  Or, you can get a dedicated IVR ICE or Kanda programmer too.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#9 2020-08-04 15:16:19

shadeless
Member
Registered: 2013-05-26
Posts: 83

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

I am using the Arduino Uno. Thanks for the tip about reflashing it. I'll look into it!

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#10 2020-08-15 17:09:02

shadeless
Member
Registered: 2013-05-26
Posts: 83

Re: [SOLVED] Arduino Uno: Serial Port greyed out, but I am in uucp group

Yup. It was definitely a damaged arduino. My new one works great.

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