* [9fans] 16:9 display and freeze
@ 2012-10-14 13:09 tlaronde
2012-10-17 0:07 ` erik quanstrom
0 siblings, 1 reply; 7+ messages in thread
From: tlaronde @ 2012-10-14 13:09 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
Hello,
Since my previous monitor died, I bought a new LCD one with 16:9 ratio,
running under X11 at 1600x900.
Nothing but the monitor has changed. The graphic card has not
changed, it is still a ATI Technologies Radeon 9200SE. My configuration
for Plan9 has not changed either for the video stuff (whether
800x600 or 1024x768, I will have to check; but the monitor "auto
adapts" so some discrepancy between what the monitor and the card
agree to use and the size of the software buffer is not impossible).
When testing a new get_mk_install.rc and compilation for kerTeX,
a couple of seconds after switching to scroll mode (for kerTeX
compilation) under Plan9 (native), the machine froze hard. I had
to cold reboot, since simply rebooting, the BIOS had problems:
something has been trashed.
Had anyone already encountered such behavior? Hints about the
"whodunit"? And a cure?
TIA
--
Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
http://www.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [9fans] 16:9 display and freeze
2012-10-14 13:09 [9fans] 16:9 display and freeze tlaronde
@ 2012-10-17 0:07 ` erik quanstrom
2012-10-17 4:58 ` Matthew Veety
0 siblings, 1 reply; 7+ messages in thread
From: erik quanstrom @ 2012-10-17 0:07 UTC (permalink / raw)
To: 9fans
> Nothing but the monitor has changed. The graphic card has not
> changed, it is still a ATI Technologies Radeon 9200SE. My configuration
> for Plan9 has not changed either for the video stuff (whether
> 800x600 or 1024x768, I will have to check; but the monitor "auto
> adapts" so some discrepancy between what the monitor and the card
> agree to use and the size of the software buffer is not impossible).
>
> When testing a new get_mk_install.rc and compilation for kerTeX,
> a couple of seconds after switching to scroll mode (for kerTeX
> compilation) under Plan9 (native), the machine froze hard. I had
> to cold reboot, since simply rebooting, the BIOS had problems:
> something has been trashed.
>
> Had anyone already encountered such behavior? Hints about the
> "whodunit"? And a cure?
no. i used a 16:9 monitor for a short while. no ill effects. other than
an ugly picture.
- erik
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [9fans] 16:9 display and freeze
2012-10-17 0:07 ` erik quanstrom
@ 2012-10-17 4:58 ` Matthew Veety
2012-10-17 10:50 ` tlaronde
0 siblings, 1 reply; 7+ messages in thread
From: Matthew Veety @ 2012-10-17 4:58 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
On 10/16/2012 8:07 PM, erik quanstrom wrote:
>> Nothing but the monitor has changed. The graphic card has not
>> changed, it is still a ATI Technologies Radeon 9200SE. My configuration
>> for Plan9 has not changed either for the video stuff (whether
>> 800x600 or 1024x768, I will have to check; but the monitor "auto
>> adapts" so some discrepancy between what the monitor and the card
>> agree to use and the size of the software buffer is not impossible).
>>
>> When testing a new get_mk_install.rc and compilation for kerTeX,
>> a couple of seconds after switching to scroll mode (for kerTeX
>> compilation) under Plan9 (native), the machine froze hard. I had
>> to cold reboot, since simply rebooting, the BIOS had problems:
>> something has been trashed.
>>
>> Had anyone already encountered such behavior? Hints about the
>> "whodunit"? And a cure?
>
> no. i used a 16:9 monitor for a short while. no ill effects. other than
> an ugly picture.
>
> - erik
>
This sounds more like a hardware problem in your machine (not display)
than a bug in Plan 9. Plan 9 crashing hard shouldn't do anything to the
bios (unless it did something *really* nasty in /dev/realmode, but I
can't think of anything that would trash the bios).
--
Veety
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [9fans] 16:9 display and freeze
2012-10-17 4:58 ` Matthew Veety
@ 2012-10-17 10:50 ` tlaronde
2012-10-17 10:53 ` erik quanstrom
0 siblings, 1 reply; 7+ messages in thread
From: tlaronde @ 2012-10-17 10:50 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
In answer to the description of my problems with display and a hard
freeze:
On Wed, Oct 17, 2012 at 12:58:03AM -0400, Matthew Veety wrote:
> On 10/16/2012 8:07 PM, erik quanstrom wrote:
> >
> >no. i used a 16:9 monitor for a short while. no ill effects. other than
> >an ugly picture.
> >
> >- erik
> >
>
> This sounds more like a hardware problem in your machine (not display)
> than a bug in Plan 9. Plan 9 crashing hard shouldn't do anything to the
> bios (unless it did something *really* nasty in /dev/realmode, but I
> can't think of anything that would trash the bios).
Thanks to both for your reply. I will have to investigate (and see what
is producing this).
Best,
--
Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
http://www.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [9fans] 16:9 display and freeze
2012-10-17 10:50 ` tlaronde
@ 2012-10-17 10:53 ` erik quanstrom
2012-10-17 11:02 ` tlaronde
2012-10-23 11:59 ` tlaronde
0 siblings, 2 replies; 7+ messages in thread
From: erik quanstrom @ 2012-10-17 10:53 UTC (permalink / raw)
To: 9fans
> > This sounds more like a hardware problem in your machine (not display)
> > than a bug in Plan 9. Plan 9 crashing hard shouldn't do anything to the
> > bios (unless it did something *really* nasty in /dev/realmode, but I
> > can't think of anything that would trash the bios).
>
> Thanks to both for your reply. I will have to investigate (and see what
> is producing this).
i would recommend using aux/realemu. it provides a measure of safety
when doing mode setting. it could be that the vesa bios does go off
into the woods when it detects a 16:9 monitor. the vesa bios has access
to this information through the edid sideband communication, which
is available on almost every video interconnect, including vga.
- erik
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [9fans] 16:9 display and freeze
2012-10-17 10:53 ` erik quanstrom
@ 2012-10-17 11:02 ` tlaronde
2012-10-23 11:59 ` tlaronde
1 sibling, 0 replies; 7+ messages in thread
From: tlaronde @ 2012-10-17 11:02 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
On Wed, Oct 17, 2012 at 06:53:17AM -0400, erik quanstrom wrote:
>
> i would recommend using aux/realemu. it provides a measure of safety
> when doing mode setting. it could be that the vesa bios does go off
> into the woods when it detects a 16:9 monitor. the vesa bios has access
> to this information through the edid sideband communication, which
> is available on almost every video interconnect, including vga.
Thank you. I will try to investigate.
--
Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
http://www.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [9fans] 16:9 display and freeze
2012-10-17 10:53 ` erik quanstrom
2012-10-17 11:02 ` tlaronde
@ 2012-10-23 11:59 ` tlaronde
1 sibling, 0 replies; 7+ messages in thread
From: tlaronde @ 2012-10-23 11:59 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
For the record, I haven't been able to reproduce it now. (I have opened
the box to verify connections and so on; and to be exhaustive, the
only modification was to simply move a IDE loose end cable further
from the motherboard---I always wonder, with the increase of speed, what
the electromagnetic noise impact is, and how shielded are MB components
from such perturbations...).
--
Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
http://www.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2012-10-23 11:59 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-10-14 13:09 [9fans] 16:9 display and freeze tlaronde
2012-10-17 0:07 ` erik quanstrom
2012-10-17 4:58 ` Matthew Veety
2012-10-17 10:50 ` tlaronde
2012-10-17 10:53 ` erik quanstrom
2012-10-17 11:02 ` tlaronde
2012-10-23 11:59 ` tlaronde
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).