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From: "Måns Rullgård" <mans@mansr.com>
To: gentoo-alpha@lists.gentoo.org
Subject: [gentoo-alpha] Re: radeon questions
Date: Sat, 13 Dec 2014 22:22:11 +0000	[thread overview]
Message-ID: <yw1xwq5vgpgs.fsf@unicorn.mansr.com> (raw)
In-Reply-To: 548CB972.2010906@gt.rr.com

Don Wilburn <bodhisattva@gt.rr.com> writes:

> Thanks for your replies.  Building the radeon driver into the kernel
> seems to work, but trying to make it a module does not (for me
> anyway).
> It makes me wonder if nouveau could work in a similar fashion.

Try and find out. :)

> My X crashes were hardware problems.  The early DEC Personal
> Workstation has a DMA problem with its 64-bit PCI slots. 

Yes, the older ones have a problem where a bus-master DMA transfer
crosses a page boundary may get corrupted.  The more recent SRM versions
include a whitelist of known-good devices, and will refuse to boot if an
unknown card is found in an affected slot (though there is an override).
The slots behind the PCI-PCI bridge have DMA transactions split on page
boundaries anyway, so those are not affected.

> Some well-behaved cards work fine, apparently.  This Visiontek card
> doesn't make that list. This is the first time I've had objective
> proof.  Switching to a 32-bit PCI slot fixed my crashes.  Once I found
> out those 64-bit slots were ordinary PCI. there was no reason to put
> the vido card there anyway.  If they were PCI-X (not express), I could
> have gotten a 66MHz bus at least, but mine are fixed at 33.  Boo hoo.
>
> My PNY GeForce 5200 did not cause problems in the bad slot.  Maybe the
> nv driver is too timid to cause a similar problem.  Maybe the hardware
> is less troublesome.  The question is moot.
>
> I let X default to my 17" non-widescreen LCD monitor's 1280x1024 and
> 24-bit color.  My first successful start of glxgears yielded about
> 60fps.  I'm happy just to see those gears turn at all.

60fps could simply be the vertical refresh rate.

-- 
Måns Rullgård
mans@mansr.com



  reply	other threads:[~2014-12-13 22:22 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-10 20:51 [gentoo-alpha] Xorg installation Don Wilburn
2013-05-10 21:18 ` Brian Parkhurst
2013-05-10 22:30   ` Don Wilburn
2013-05-10 22:55     ` Brian Parkhurst
2013-05-11  0:43       ` Don Wilburn
2013-05-11  2:03       ` Don Wilburn
2013-05-11  4:57         ` Brian Parkhurst
2013-05-11 20:11           ` Don Wilburn
2013-05-12  2:30             ` Brian Parkhurst
2013-05-12 18:07               ` Don Wilburn
2013-05-12 20:41                 ` Don Wilburn
2013-05-15  1:56               ` Don Wilburn
2013-05-15 16:41                 ` Matt Turner
2013-05-15 20:56                   ` Don Wilburn
2013-05-16  2:31                   ` [gentoo-alpha] Xorg installation- SOLVED! Don Wilburn
2013-05-16  2:46                     ` [gentoo-alpha] suggestion for the Alpha handbook Don Wilburn
2013-05-16 18:46                     ` [gentoo-alpha] Xorg installation- SOLVED! Matt Turner
2013-05-16 23:44                       ` Don Wilburn
2013-05-23 19:12                   ` [gentoo-alpha] emerge gentoo-sources fails Don Wilburn
2013-05-23 19:39                     ` Brian Parkhurst
2013-05-23 21:30                       ` Don Wilburn
2013-05-24 18:59                         ` Brian Parkhurst
2013-05-24 20:16                           ` Brian Parkhurst
2013-05-24 20:23                             ` Brian Parkhurst
2013-05-24 20:56                             ` Don Wilburn
2013-05-24 20:58                               ` Brian Parkhurst
2013-05-24 21:12                                 ` Brian Parkhurst
2013-05-24 22:29                                 ` Brian Parkhurst
2013-05-27  4:12                                   ` [gentoo-alpha] emerge gentoo-sources fails FINISHED Don Wilburn
2013-05-27  4:25                                   ` [gentoo-alpha] one more thing Don Wilburn
2013-05-29  1:39                                     ` [gentoo-alpha] es1888 audio and PWS500au Don Wilburn
2013-05-29  4:47                                       ` Brian Parkhurst
2013-06-06 22:33                                         ` [gentoo-alpha] Alpha boot CD has no jfs tools Don Wilburn
2013-06-12  6:43                                           ` Matt Turner
2013-06-13  0:27                                             ` Don Wilburn
2013-06-13  7:17                                               ` Matt Turner
2013-06-14  3:27                                                 ` [gentoo-alpha] Alpha boot CD has no jfs tools bug report Don Wilburn
2014-09-26 20:51                                             ` [gentoo-alpha] install cd won't boot Don Wilburn
2014-10-06 23:41                                               ` Don Wilburn
2014-10-07 14:32                                                 ` Don Wilburn
2014-10-25 16:19                                                   ` Raúl Porcel
2013-05-24 20:46                           ` [gentoo-alpha] emerge gentoo-sources fails Don Wilburn
2013-07-11  2:41                       ` [gentoo-alpha] emerge failure revisited Don Wilburn
2013-07-11 14:37                         ` Andrew Gaylard
2013-07-11 18:42                           ` Don Wilburn
2014-11-30 22:20                           ` [gentoo-alpha] radeon questions Don Wilburn
2014-12-09  7:17                             ` Matt Turner
2014-12-09 12:28                               ` [gentoo-alpha] " Måns Rullgård
2014-12-09 18:56                                 ` Don Wilburn
2014-12-11 14:39                                   ` Alex Deucher
2014-12-10  0:54                               ` [gentoo-alpha] " Don Wilburn
2014-12-13 22:10                               ` Don Wilburn
2014-12-13 22:22                                 ` Måns Rullgård [this message]
2014-12-13 22:25                                   ` [gentoo-alpha] " Matt Turner
2014-12-14 20:50                                     ` Don Wilburn
2014-12-14 21:21                                       ` Måns Rullgård
2014-12-26 22:33                                         ` [gentoo-alpha] radeonfb question Don Wilburn
2014-12-27 21:09                                           ` [gentoo-alpha] radeonfb question solved Don Wilburn
2015-02-01 20:31                                             ` [gentoo-alpha] bug filed, probably happens to Alpha alone Don Wilburn
2015-02-04  0:14                                               ` Don Wilburn
2015-06-16  0:22                                   ` [gentoo-alpha] nouveau question Don Wilburn
2015-06-16 15:40                                     ` [gentoo-alpha] nouveau question -follow up Don Wilburn
2015-06-16 21:17                                       ` Alan Young
2013-07-21  4:10                         ` [gentoo-alpha] emerge failure revisited Matt Turner
2013-07-23  0:26                           ` Don Wilburn

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