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Problemi: Framebuffer wide 1280x800
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MaTz
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PostPosted: Thu Jan 25, 2007 8:40 pm    Post subject: Problemi: Framebuffer wide 1280x800 Reply with quote

Ho provato diverse soluzioni per far andare il framebuffer in modalità 1280x800

1a opzione:
vesa-tng
non riesco ad ottenere la risoluzione desiderata (passandola sia da grub sia da config del kernel).
Il massimo che riesco ad ottenere è 1024x768

2a opzione:
radeonfb
con questo riesco ad ottenere la risoluzione desiderata ma in compenso ottengo una serie di errori grafici (linee random di pixel colorati)

questo è il risultato di vbe test
Code:

VBE Version 2.0
ATI MOBILITY RADEON 9200
[386] 320x200 (256 color palette)
[269] 320x200 (5:5:5)
[270] 320x200 (5:6:5)
[271] 320x200 (8:8:8)
[288] 320x200 (8:8:8)
[402] 320x240 (256 color palette)
[403] 320x240 (5:5:5)
[404] 320x240 (5:6:5)
[405] 320x240 (8:8:8)
[406] 320x240 (8:8:8)
[418] 400x300 (256 color palette)
[419] 400x300 (5:5:5)
[420] 400x300 (5:6:5)
[421] 400x300 (8:8:8)
[422] 400x300 (8:8:8)
[434] 512x384 (256 color palette)
[435] 512x384 (5:5:5)
[436] 512x384 (5:6:5)
[437] 512x384 (8:8:8)
[438] 512x384 (8:8:8)
[450] 640x350 (256 color palette)
[451] 640x350 (5:5:5)
[452] 640x350 (5:6:5)
[453] 640x350 (8:8:8)
[454] 640x350 (8:8:8)
[256] 640x400 (256 color palette)
[387] 640x400 (5:5:5)
[388] 640x400 (5:6:5)
[389] 640x400 (8:8:8)
[390] 640x400 (8:8:8)
[257] 640x480 (256 color palette)
[272] 640x480 (5:5:5)
[273] 640x480 (5:6:5)
[274] 640x480 (8:8:8)
[289] 640x480 (8:8:8)
[259] 800x600 (256 color palette)
[275] 800x600 (5:5:5)
[276] 800x600 (5:6:5)
[277] 800x600 (8:8:8)
[290] 800x600 (8:8:8)
[261] 1024x768 (256 color palette)
[278] 1024x768 (5:5:5)
[279] 1024x768 (5:6:5)
[280] 1024x768 (8:8:8)
[291] 1024x768 (8:8:8)
[263] 1280x1024 (256 color palette)
[281] 1280x1024 (5:5:5)
[282] 1280x1024 (5:6:5)
[283] 1280x1024 (8:8:8)
[292] 1280x1024 (8:8:8)
[320] 1400x1050 (256 color palette)
[321] 1400x1050 (5:5:5)
[322] 1400x1050 (5:6:5)
[323] 1400x1050 (8:8:8)
[324] 1400x1050 (8:8:8)
[370] 1600x1200 (256 color palette)
[371] 1600x1200 (5:5:5)
[372] 1600x1200 (5:6:5)
[373] 1600x1200 (8:8:8)
[374] 1600x1200 (8:8:8)


avete qualche consiglio da darmi?
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skypjack
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Joined: 05 Aug 2006
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PostPosted: Thu Jan 25, 2007 9:39 pm    Post subject: Re: Problemi: Framebuffer wide 1280x800 Reply with quote

MaTz wrote:
Ho provato diverse soluzioni per far andare il framebuffer in modalità 1280x800

1a opzione:
vesa-tng
non riesco ad ottenere la risoluzione desiderata (passandola sia da grub sia da config del kernel).
Il massimo che riesco ad ottenere è 1024x768

Non la supporta, vedi documentazione del kernel...
Sull'altro non so dirti...
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djinnZ
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PostPosted: Thu Jan 25, 2007 9:48 pm    Post subject: Reply with quote

:twisted:
_________________
scita et risus abundant in ore stultorum sed etiam semper severi insani sunt:wink:
mala tempora currunt...mater stultorum semper pregna est :evil:
Murpy'sLaw:If anything can go wrong, it will - O'Toole's Corollary:Murphy was an optimist :wink:


Last edited by djinnZ on Mon Feb 23, 2009 9:25 pm; edited 1 time in total
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MaTz
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Joined: 28 Aug 2005
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Location: Genova (IT)

PostPosted: Thu Jan 25, 2007 10:33 pm    Post subject: Reply with quote

djinnZ wrote:
solo con video=radeon:etc (vedi la doc del kernel per le opzioni esatte non posso riavviare) se non erro.

io ho provato con
Code:

video=radeon:1280x800-32@60


come ho scritto sopra ottengo la risoluzione di 1280x800 il problema sono gli artefatti video ovvero una serie di pixel che si colorano in modo random
(N.B.: il sistema non si freeza)

la risoluzione sembra corretta:
Code:

mode "1280x800-60"
    # D: 83.472 MHz, H: 49.686 kHz, V: 59.791 Hz
    geometry 1280 800 1280 800 8
    timings 11980 208 64 24 1 128 6
    hsync high
    vsync high
    rgba 8/0,8/0,8/0,0/0
endmode

cmq per quanto riguarda i parametri sono molto dubbioso in quanto non trovo nulla in merito in:
Code:

ls /usr/src/linux/Documentation/fb/
00-INDEX         imacfb.txt       pvr2fb.txt       tgafb.txt
aty128fb.txt     intel810.txt     pxafb.txt        tridentfb.txt
cirrusfb.txt     intelfb.txt      sa1100fb.txt     vesafb.txt
cyblafb/         internals.txt    sisfb.txt
fbcon.txt        matroxfb.txt     splash.txt
framebuffer.txt  modedb.txt       sstfb.txt


Secondo voi da cosa possono dipendere gli artefatti?
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djinnZ
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PostPosted: Thu Jan 25, 2007 10:44 pm    Post subject: Reply with quote

:twisted:
_________________
scita et risus abundant in ore stultorum sed etiam semper severi insani sunt:wink:
mala tempora currunt...mater stultorum semper pregna est :evil:
Murpy'sLaw:If anything can go wrong, it will - O'Toole's Corollary:Murphy was an optimist :wink:


Last edited by djinnZ on Mon Feb 23, 2009 9:27 pm; edited 1 time in total
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MaTz
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PostPosted: Thu Jan 25, 2007 10:52 pm    Post subject: Reply with quote

http://thesapphirecat.iwarp.com/present/program/radeonfb.html

se non fosse per gli artefatti andrebbe tutto ok.
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