[K12OSN] Repost: KStars downloaded images blank

[Terrell Prude', Jr.]

I have replicated your results w/ K12LTSP 3.1.1; KStars doesn't itself 
show anything but blackness in the "image" window, but I can save it and 
view it in, say, Eye of Gnome.  I wanted to try it w/o any updates to 
3.1.2, just in case that was it.

I've also tried it after updating to 3.1.2 (apt-get update, apt-get 
upgrade).  My results now are less positive, because now KStars dies 
with ASSERT statements in qvaluelist.h (some Qt header).

Have you reported what you've found to the KStars maintaner(s)?

--TP

Terrell Prude', Jr. wrote:

> I'll try it out this weekend and let you know what I find; I've got a 
> server box handy that I can use for this purpose.  I've just been so 
> swamped this last week, otherwise I'd have this done for you by now.
>
> --TP
>
> Robert Arkiletian wrote:
>
>> ***** Has anyone gotten KStars show image to work on a client ? *******
>>
>> Update:
>> I stuck in a S3 virge gx2 and the same problem persists. I asked a 
>> friend about this and he asked a friend and he replied:
>> ===========================================
>> - This sort of problem is often due to inadequate support for graphics
>> acceleration.  KStars as provided by Debian is dynamically linked to the
>> GL libraries.  Perhaps he should check what package he's using to 
>> provide
>> libGL on his server; in an LTSP setup, something software-only like 
>> mesag3
>> might be worth trying.
>>
>> - FWIW, I tried running KStars through an SSH tunnel (a possibly similar
>> scenario) and did observe the problem described (but with the DSS query
>> feature - a star with the SEDS option wasn't immediately handy): image
>> downloaded but only a blank image-viewer window appearing.  At the time
>> the image-viewer window appeared I got the following errors on the
>> console:
>>
>> kstars: WARNING: KDE detected X Error: BadAccess (attempt to access 
>> private resource denied) \x0a
>>  Major opcode:  \x92
>> kstars: WARNING: KDE detected X Error: BadShmSeg (invalid shared 
>> segment parameter) \xab
>>  Major opcode:  \x92
>> kstars: WARNING: KDE detected X Error: BadShmSeg (invalid shared 
>> segment parameter) \xab
>>  Major opcode:  \x92
>> ============================================
>>
>> I can't figure out why KStars would need opengl support when it's 
>> only displaying jpg's and gif's.
>> ***** Has anyone gotten KStars show image to work on a client ? *******
>>
>> Robert Arkiletian
>>
>> On Friday 04 June 2004 11:45 pm, Robert Arkiletian wrote:
>>  
>>
>>> Well all 30 of them use nvidia riva 128's but I do have a S3 trio64+ 
>>> and an
>>> old matrox sitting around. Thanks for the idea Terrell. I will pop 
>>> out an
>>> nvidia card on one of them and test it out on monday. But I doubt it 
>>> will
>>> make any difference because if I SAVE the image with KStars I can 
>>> then view
>>> it with any image viewer (gimp, eog, web browsers). It's a real 
>>> showstopper
>>> if you have to save and then open the image with another viewer 
>>> though. I
>>> still think it has something to do with kdeinit and/or the XF86config
>>> settings in lts.conf. What I am looking for from this listserve is just
>>> some people to take a couple of seconds and try KStars from a client 
>>> and
>>> see if they experience the same problem.
>>> If they do, then I'm going to contact the developers and see if I can
>>> report it as a bug.
>>>
>>> Thanks for your reply Terrell, I appreciate it.
>>>
>>> Robert Arkiletian
>>> Eric Hamber Secondary
>>>
>>> On Friday 04 June 2004 7:15 pm, Terrell Prude', Jr. wrote:
>>>   
>>>
>>>> Do you by any chance have a thin client with any other type of video
>>>> card?  You're right; if they're just GIFs and JPEGs, they should 
>>>> display
>>>> just fine.  Also, if you go Web surfing on your clients, do the 
>>>> GIFs and
>>>> JPEGs display properly?  When you save these images from within 
>>>> KStars,
>>>> can you view them with, say, Kuickshow, Electric Eyes, or The GIMP on
>>>> your clients?
>>>>
>>>> --TP
>>>>
>>>> Robert Arkiletian wrote:
>>>>     
>>>>
>>>>> Right clicking on a heavenly body in KStars will usually bring up the
>>>>> "Show SEDS image" option. The image downloads but it will not display
>>>>> with KStars. The image window is blank.
>>>>>
>>>>> I can save the image okay, though. This problem only exists on my
>>>>> clients. They are all nvidia riva 128's. However, on the server which
>>>>> has an on board ATI rage pro chip the images appear properly
>>>>> (regardless if I log in as root or a user). However, on the clients,
>>>>> even as root I do not get an image (just black space in the image
>>>>> window)
>>>>>
>>>>> So it's not a permission problem. I figure it must be a problem with
>>>>> XF86Config for the clients and server being different.
>>>>>
>>>>> I have enabled 24 bit color (as the riva 128 can't do 16 with xfree86
>>>>> 4.3) and set XSERVER = auto in lts.conf. I even tried XSERVER = 
>>>>> nv, no
>>>>> luck. The damn images are just gif's and jpg's. Any video card should
>>>>> be able to display them.
>>>>>
>>>>> I looked at top (interactive A option) and I found the program was
>>>>> ----------kdeinit------------ that was trying to display the images.
>>>>> I don't know anything about kdeinit but it must somehow call an image
>>>>> viewing mechanism. Somehow the client xserver is not able to display
>>>>> the downloaded image with kdeinit.
>>>>>
>>>>> Can someone try to view these celestial SEDS images on their 
>>>>> clients and
>>>>> confirm this behavior??? KStars is an awsome program worth the 
>>>>> effort.
>>>>>
>>>>> Do I need any modules loaded with Xfree86? Anyone have any ideas to
>>>>> solve this issue.
>>>>>
>>>>> BTW I'm using k12ltsp 3.1.2
>>>>>
>>>>> Robert Arkiletian
>>>>> Eric Hamber Secondary
>>>>