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* [9front] trident cyber 9525 graphics glitches
@ 2021-09-05 17:30 lyndsay lastname
  2021-09-05 22:52 ` qwx
  0 siblings, 1 reply; 10+ messages in thread
From: lyndsay lastname @ 2021-09-05 17:30 UTC (permalink / raw)
  To: 9front

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hi all,

sorry if this is out of place, i'm new to 9front and plan 9 in general. i'd 
appreciate it if you directed me to the appropriate venue for asking this 
question if this isn't the right one.

i'm trying to install 9front on an old toshiba satellite 2250cdt, which has 
a trident cyber 9525 gpu. it seems like that device is supported, as 
there's an entry for it in /lib/vgadb under the cyber938x controller, but 
i'm having some issues with this particular configuration seemingly not 
wanting to play nice with 9front and it's made it impossible to get the 
system up and running.

first of all, the vanilla /lib/vgadb does not have an entry with the right 
BIOS identifier for this device, so it wasn't giving me any graphical 
output regardless of the settings i chose at first. i was able to revise 
the cyber938x entry in /lib/vgadb to add the appropriate line (diff) and 
inject that into the install ISO, and it now does produce some output with 
`aux/vga -m xga -l 1024x768x16`. (it does not work with -m vesa.) this gpu 
technically supports 24-bit color modes, but vga dies telling me there's 
not enough memory if i try to use one, which is also a known problem on 
solaris that they say to fix by using a 16-bit mode.  

the issue now is that although i can get the display to load, the screen 
output is garbled. it properly renders the cursor, including its movement, 
and responds to my keyboard too, but everything else is totally broken. it 
IS clear where the things displayed on the screen are coming from, so it's 
not like it's just dumping nonsense from memory. i'll link two pictures 
showing what this looks like - the first is the initial screen the 
installer drops to where it asks for mouse type, the second is the default 
rio layout after hitting enter on that screen:

https://i.imgur.com/z9fauzt.jpeg

https://i.imgur.com/ND9THHP.jpeg

i have absolutely no idea how to fix this and i can't really find anything 
clear in the FQA. any suggestions?
------sinikael-?=_1-16308630216640.2992016441892944
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<html><head></head><body><p>hi all,</p>
<p>sorry if this is out of place, i'm new to 9front and plan 9 in general. 
i'd appreciate it if you directed me to the appropriate venue for asking 
this question if this isn't the right one.</p><p>i'm trying to 
install 9front on an old toshiba satellite 2250cdt, which 
has a trident cyber 9525 gpu. it seems like that device is supported, as 
there's an entry for it in /lib/vgadb under the cyber938x controller, but 
i'm having some issues with this particular configuration seemingly not 
wanting to play nice with 9front and it's made it impossible to get the 
system up and running.</p><p>first of all, the vanilla /lib/vgadb does not 
have an entry with the right BIOS identifier for this device, so it wasn't 
giving me any graphical output regardless of the settings i chose at first. 
i was able to revise the cyber938x entry in /lib/vgadb to add the 
appropriate line (<a class="" 
href="https://pastebin.com/YQsyWZnH">diff</a>) and inject that into the 
install ISO, and it now does produce some output with `aux/vga -m xga -l 
1024x768x16`. (it does not work with -m vesa.) this gpu technically 
supports 24-bit color modes, but vga dies telling me there's not enough 
memory if i try to use one, which is also a <a class="" 
href="https://www.oracle.com/webfolder/technetwork/hcl/data/components/details/trident/sol_10_01_06/1291.html">known 
problem on solaris</a>&nbsp;that they say to fix by using a 16-bit 
mode.&nbsp;&nbsp;</p><p>the issue now is that although i can get the 
display to load, the screen output is garbled. it properly renders the 
cursor, including its movement, and responds to my keyboard too, but 
everything else is totally broken. it IS clear where the things displayed 
on the screen are coming from, so it's not like it's just dumping nonsense 
from memory. i'll link two pictures showing what this looks like - the 
first is the initial screen the installer drops to where it asks for mouse 
type, the second is the default rio layout after hitting enter on that 
screen:</p><p>https://i.imgur.com/z9fauzt.jpeg</p><p>https://i.imgur.com/ND9THHP.jpeg</p><p>i 
have absolutely no idea how to fix this and i can't really find anything 
clear in the FQA. any suggestions?</p></body></html>
------sinikael-?=_1-16308630216640.2992016441892944--

^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2021-09-21 15:17 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-05 17:30 [9front] trident cyber 9525 graphics glitches lyndsay lastname
2021-09-05 22:52 ` qwx
2021-09-05 23:18   ` lyndsay
2021-09-06  0:08     ` qwx
2021-09-06  0:53       ` lyndsay
2021-09-06 21:29         ` qwx
2021-09-21  4:11       ` lyndsay
2021-09-21  5:06         ` unobe
2021-09-21  9:17         ` qwx
2021-09-21 14:45           ` lyndsay

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