【鼎革‧革鼎】︰ Raspbian Stretch 《六之 A 》

既然說是探險,恐怕沒有地圖哩!

樹莓派論壇或可為導引︰

RASPBIAN STRETCH PROBLEMS

Wed Sep 27, 2017 9:26 pm

The Raspberry Pi is a ground-breaking computer that has been adapted for many purposes ranging from education to industrial control. I have successfully used various Raspberry Pis (original, 2, 3, Zero and Zero-W) for the past 3+ years for a variety of purposes. Until recently the OS has been stable and with minimal OS problems, and the process of installing and configuration has been simple and fool-proof. Unfortunately that was in the past.

I have tried the various “Stretch” release and found each to have significant problems that should have been easily identified, even with minimal testing. The latest release includes what is apparently an old driver for WiFi dongles and incorrect libraries for Apache2 and MySQL. After solving these problems I ran into another problem with a SQL connector to which i was unable to resolve. Upon re-flashing the SD card and starting a new implementation to verify my notes, I encountered a new problem with apt-get unable to find the “mirror server”. Where did this new problem come from and why didn’t it appear a few hours earlier? The next day the problem continued. Has the OS changed, without a corresponding change to the version number or date? Or is the mirror server down and no one noticed?

Reviewing the comments and problems on your Forums and other web sites reveal many other problems that have occurred and reoccured multiple times. Unfortunately there is a pattern here and it is not a positive one.

Attempting to find information about how to correct these problems is both time consuming and frustrating as there are many people searching for answers which are few and far between. And few of these are address on the Raspberry Pi site. That should be the MAIN site these problems are reported, discussed and addressed! But that is not the case.

As a result users are forced to reinstall older version of our OS. While this solves an immediate problem it does not address the fundamental problem. It provides only a temporary solution which will cease to function when one adds new products or functions to their Pi or make other changes that entail new drivers.

Is this the new norm for the Raspberry Pi organisation? I hope not. I recognise you are (mostly) a volunteer organisation and your software is open source. However that does not relieve you of the responsibility to your supporters and those you serve of providing fully tested and functional hardware and software products. Releasing products, be they hardware or software, that are inoperative will quickly dissipate the store of good will you have accrued over the past few years.

Jim Scott :cry:

……

Re: RASPBIAN STRETCH PROBLEMS

Thu Sep 28, 2017 9:27 am

A number of points to cover…

Stretch was tested, and was available as a beta for external testing for months. However, we cannot cover everything (we don’t have access to every USB dongle supported for example, and we don’t have a testing department the size of Microsoft – there are 26 thousand packages in Stretch…). It is worth noting that the vast majority of the Stretch release was straight from Debian, where it received a huge amount of testing. The RPF(T) just make a few changes to tailor it to the Raspberry Pi Hardware. Just as an addendum, I have been using Stretch on multiple devices and have not seen a SINGLE problem, as have many others. To say that Stretch was untested or had little testing is untrue.

MySQL was dropped by Debian in favour of MariaDB, and we follow Debian. Not sure about problems with Apache, not heard of any.

We have a github system for reporting issues, but this is for modules we have changed, i.e. Pi specific. So Desktop, kernel, userland etc. Other bugs should be reported to the appropriate developers (or Debian) because they are nothing to do with us. https://github.com/raspberrypi/

Mirror servers are exactly that, mirrors of our server. If our servers are down that is a problem, but this is very rare. It should also be noted that the Raspbian server itself is not run by the RPF, so we are limited in how much control we have, however, the guy who runs it is generally very responsive so downtime is minimal.

One thing to note, you state that answers to your problems are few and far between. This to me indicates that the problems you are seeing are quite rare, or there would be more posts about them.

Now some questions in return.

Which bugs have been flagged time and time again and, apparently, are unfixed?
Which bugs are you seeing on Stretch that are Raspberry Pi related?
Have you encountered any HW bugs?
Where have you reported the issues you have seen so I can check them out.

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Raspberry Pi

Pinned repositories

  1. linux

    Kernel source tree for Raspberry Pi Foundation-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://www.raspberrypi.org/forum

    C 4.1k 2.2k

  2. firmware

    This repository contains pre-compiled binaries of the current Raspberry Pi kernel and modules, userspace libraries, and bootloader/GPU firmware.

    C 2.3k 851

  3. documentation

    Official documentation for the Raspberry Pi

    Python 1.6k 887

  4. noobs

    NOOBS (New Out Of Box Software) – An easy Operating System install manager for the Raspberry Pi

    Makefile 1.3k 298

  5. userland

    Source code for ARM side libraries for interfacing to Raspberry Pi GPU.

    C 1.2k 730

 

其餘也許祇能仰賴谷歌 google ,最好可以依靠自己實力呦!

因此這個 Raspbian Stretch 學習機始於選擇小巧、高清 fHD、便宜之顯示器,

pi@raspberrypi:~ tvservice -s state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive pi@raspberrypi:~ 
pi@raspberrypi:~ edidparser edid.dat  Enabling fuzzy format match... Parsing edid.dat... HDMI:EDID version 1.3, 1 extensions, screen size 70x39 cm HDMI:EDID features - videodef 0x80 standby suspend active off; colour encoding:RGB444|YCbCr422; sRGB is not default colourspace; preferred format is native; does not support GTF HDMI:EDID found monitor range descriptor tag 0xfd HDMI:EDID monitor range offsets: V min=0, V max=0, H min=0, H max=0 HDMI:EDID monitor range: vertical is 49-72 Hz, horizontal is 30-83 kHz, max pixel clock is 170 MHz HDMI:EDID monitor range does not support GTF HDMI:EDID found monitor name descriptor tag 0xfc HDMI:EDID monitor name is K3A8F_HDMI HDMI:EDID found preferred CEA detail timing format: 1920x1080p @ 60 Hz (16) HDMI:EDID found DMT detail timing format: 1366x768p @ 60 Hz (81) HDMI:EDID established timing I/II bytes are A1 08 00 HDMI:EDID found DMT format: code 4, 640x480p @ 60 Hz in established timing I/II HDMI:EDID found DMT format: code 9, 800x600p @ 60 Hz in established timing I/II HDMI:EDID found DMT format: code 16, 1024x768p @ 60 Hz in established timing I/II HDMI:EDID standard timings block x 8: 0x8180 B300 D1C0 A9C0 9500 0101 0101 0101  HDMI:EDID found DMT format: code 35, 1280x1024p @ 60 Hz (5:4) in standard timing 0 HDMI:EDID found DMT format: code 58, 1680x1050p @ 60 Hz (16:10) in standard timing 1 HDMI:EDID found DMT format: code 82, 1920x1080p @ 60 Hz (16:9) in standard timing 2 HDMI:EDID found DMT format: code 83, 1600x900p @ 60 Hz (16:9) in standard timing 3 HDMI:EDID found DMT format: code 47, 1440x900p @ 60 Hz (16:10) in standard timing 4 HDMI:EDID parsing v3 CEA extension 0 HDMI:EDID monitor support - underscan IT formats:yes, basic audio:yes, yuv444:yes, yuv422:yes, #native DTD:1 HDMI:EDID found CEA detail timing format: 1920x1080p @ 60 Hz (16) HDMI:EDID found CEA detail timing format: 1920x1080i @ 60 Hz (5) HDMI:EDID found CEA detail timing format: 1280x720p @ 60 Hz (4) HDMI:EDID found CEA detail timing format: 720x480p @ 60 Hz (2) HDMI:EDID found CEA format: code 16, 1920x1080p @ 60Hz (native) HDMI:EDID found CEA format: code 5, 1920x1080i @ 60Hz  HDMI:EDID found CEA format: code 4, 1280x720p @ 60Hz  HDMI:EDID found CEA format: code 3, 720x480p @ 60Hz  HDMI:EDID found CEA format: code 2, 720x480p @ 60Hz  HDMI:EDID found CEA format: code 7, 1440x480i @ 60Hz  HDMI:EDID found CEA format: code 22, 1440x576i @ 50Hz  HDMI:EDID found CEA format: code 1, 640x480p @ 60Hz  HDMI:EDID found CEA format: code 31, 1920x1080p @ 50Hz  HDMI:EDID found CEA format: code 18, 720x576p @ 50Hz  HDMI:EDID found CEA format: code 19, 1280x720p @ 50Hz  HDMI:EDID found CEA format: code 20, 1920x1080i @ 50Hz  HDMI:EDID found CEA format: code 32, 1920x1080p @ 24Hz  HDMI:EDID found CEA format: code 21, 1440x576i @ 50Hz  HDMI:EDID found CEA format: code 17, 720x576p @ 50Hz  HDMI:EDID found CEA format: code 6, 1440x480i @ 60Hz  HDMI:EDID found audio format 2 channels PCM, sample rate: 32|44|48 kHz, sample size: 16|20|24 bits HDMI:EDID found HDMI VSDB length 7 HDMI:EDID HDMI VSDB has physical address 1.0.0.0 HDMI:EDID HDMI VSDB supports AI:no, dual link DVI:no HDMI:EDID HDMI VSDB deep colour support - 48-bit:no 36-bit:yes 30-bit:yes DC_yuv444:yes HDMI:EDID HDMI VSDB max TMDS clock 225 MHz HDMI:EDID HDMI VSDB has no latency information HDMI:EDID extended data block tag 0x05 length 3 not supported HDMI:EDID filtering formats with pixel clock > 162 MHz or h. blanking > 1023 HDMI:EDID best score mode initialised to CEA (1) 640x480p @ 60 Hz with pixel clock 25 MHz (score 0) HDMI:EDID best score mode is now CEA (1) 640x480p @ 60 Hz with pixel clock 25 MHz (score 61864) HDMI:EDID best score mode is now CEA (2) 720x480p @ 60 Hz with pixel clock 27 MHz (score 2566472) HDMI:EDID CEA mode (3) 720x480p @ 60 Hz with pixel clock 27 MHz has a score of 66472 HDMI:EDID best score mode is now CEA (4) 1280x720p @ 60 Hz with pixel clock 74 MHz (score 3135592) HDMI:EDID DMT mode (4) 640x480p @ 60 Hz with pixel clock 25 MHz has a score of 18432 HDMI:EDID best score mode is now CEA (5) 1920x1080i @ 60 Hz with pixel clock 74 MHz (score 3773832) HDMI:EDID CEA mode (6) 1440x480i @ 60 Hz with pixel clock 27 MHz has a score of 45736 HDMI:EDID CEA mode (7) 1440x480i @ 60 Hz with pixel clock 27 MHz has a score of 45736 HDMI:EDID DMT mode (9) 800x600p @ 60 Hz with pixel clock 40 MHz has a score of 28800 HDMI:EDID best score mode is now CEA (16) 1920x1080p @ 60 Hz with pixel clock 148 MHz (score 5398248) HDMI:EDID DMT mode (16) 1024x768p @ 60 Hz with pixel clock 65 MHz has a score of 47185 HDMI:EDID CEA mode (17) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 66472 HDMI:EDID CEA mode (18) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 66472 HDMI:EDID CEA mode (19) 1280x720p @ 50 Hz with pixel clock 74 MHz has a score of 117160 HDMI:EDID CEA mode (20) 1920x1080i @ 50 Hz with pixel clock 74 MHz has a score of 128680 HDMI:EDID CEA mode (21) 1440x576i @ 50 Hz with pixel clock 27 MHz has a score of 45736 HDMI:EDID CEA mode (22) 1440x576i @ 50 Hz with pixel clock 27 MHz has a score of 45736 HDMI:EDID CEA mode (31) 1920x1080p @ 50 Hz with pixel clock 148 MHz has a score of 232360 HDMI:EDID CEA mode (32) 1920x1080p @ 24 Hz with pixel clock 74 MHz has a score of 124532 HDMI:EDID DMT mode (35) 1280x1024p @ 60 Hz with pixel clock 108 MHz has a score of 103643 HDMI:EDID DMT mode (47) 1440x900p @ 60 Hz with pixel clock 106 MHz has a score of 102760 HDMI:EDID DMT mode (58) 1680x1050p @ 60 Hz with pixel clock 146 MHz has a score of 130840 HDMI:EDID DMT mode (81) 1366x768p @ 60 Hz with pixel clock 85 MHz has a score of 4562945 HDMI:EDID DMT mode (82) 1920x1080p @ 60 Hz with pixel clock 148 MHz has a score of 149416 HDMI:EDID DMT mode (83) 1600x900p @ 60 Hz with pixel clock 108 MHz has a score of 111400 HDMI:EDID preferred mode remained as CEA (16) 1920x1080p @ 60 Hz with pixel clock 148 MHz HDMI:EDID has HDMI support and audio support edid_parser exited with code 0 pi@raspberrypi:~ 

 

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