I think there is a lot of confusion about "black screen' bugs so I thought I would lay them out for review.
As far as I can tell I know of 3 bugs and 2 of them are documented in the Catalog of HR20 bugs
If there are more varieties or better descriptions please add that info to this post.
I have added the Black Screen Bug AKA BSB to the bottom of this post (number 3) and if we can come to consensus on the description, I will add to the catalog of bugs. I don't have much background on this Black Screen Bug, I have not experienced this one yet (knock on wood) so if anyone can help document it might help others.
If there is agreement on these bugs and their description I would recommend that we use one name to reference each unique bug to reduce confusion.
1. Black Screen of Death (BOSD) or Black Death
2. Unwatchable Bug
3. Black Screen Bug (BSB)
Here are the descriptions:
Bug Name: Black Screen of Death (BSOD), AKA: Black Death, Black Screen, Black Screen Lockup
Black Screen can happen at any time, typically caused when triggering an event but the HR20 can be found to just have a black screen and completely locked up, no interaction from the remote or front panel will restore functionality.
Fatal, Requires Rebooting
Currently active in 0x10b, Black death has been experienced in every release of code, the frequency of the occurrence of this bug has appeared to vary depending on the release and perhaps active users reporting the defect.
First Identified Report:
Unknown Many early lockups were not clearly documented, First Called BSOD 10-04-06, 05:53 PM by LameLefty to describe the Unwatchable bug but later became adopted to describe a black screen with a total lockup of the HR20. There are reports of total system lockups and freezes going back to Aug 06, for example
Postings of interest on the subject:
Black Screen no response from remote, HR20 unusable.
Bug Name: Unwatchable Bug
or negative number recording, Older names include BSOD and Black Screen, these older usages of the names did not describe lockups in the HR20, rather just a black screen associated with playback and the death of that recording. These older names should not be confused with the newer more lethal bug now called the black screen bug these usages are listed here for historic reasons.
First Identified Report: 08-30-06, 05:17 PM by Wally_Gator
Loss of recording, no recovery
History/Status: Currently active in 0x10b
has been in every release of code, bug may be on decline, fewer reports noted. For a period of time some users called the unwatchable bug the Black Screen of Death
Postings of interest on the subject:
When a recording is selected for playback, user will experience a black screen. User can use trick plays but there will be no change in video status, if the trick play has a counter, it will increment but screen will continue to be black. Users may notice that the time code may contain a negative number but it may also contain just zeros, example 0:-59 or -1:-29 or 0:00. Click here for many examples of the negative time code.
If a recording is currently in progress and trick plays do not work, it is highly likely that this recording will suffer the Unwatchable Bug, this same symptom was also experienced with the Partial Bug (potentially eliminated under latest versions of the code). A reboot will remove all recordings with the Unwatchable bug
Example post of the Unwatchable Bug in 0x10b
Delete the recording or reboot the HR20, your recording is lost.
Bug Name: Black Screen Bug aka BSB
Prognosis: Fatal, Requires Rebooting
History/Status: Currently in 0x10b may of been in 0xFA
Symptoms: HR20 menus, guide, channel change, signal stength of the satellite, all work normal but every channel is black video
If you have more data or recommended changes to the description please add your posts below.
Additionally if anyone can provide a screen shot of the BSB, please attach a photo to this post and I will merge it in and move it to the Catalog of HR20 Bug post.