[mythtv-users] Nvidia Upgrade Agony

Calvin Dodge caldodge at gmail.com
Sun Dec 28 22:34:26 UTC 2014


I've encountered enough inconveniences with Nvidia cards that I now
avoid the brand.  For my purposes ATI or Intel chipsets work well
enough with stock Linux drivers.

Calvin Dodge

On Sun, Dec 28, 2014 at 3:59 PM, Larry Kennedy <lunchtimelarry at gmail.com> wrote:
> On Dec 28, 2014 4:56 PM, "Saul" <jaglover at gmail.com> wrote:
>>
>> On Sun, 28 Dec 2014 16:08:35 -0500
>> Larry Kennedy <lunchtimelarry at gmail.com> wrote:
>>
>> > I'm running myth 0.26.1-296 on EL6 (2.6.32-431.el6.i686) with a GT210
>> > card and the nvidia 319.32 driver.
>> >
>> > About a week ago, I accidentally took an update to my Xorg server
>> > (now I have xorg-x11-server-Xorg-1.15.0-25.el6.centos.i686), and
>> > after that I started getting a driver mismatch error (ABI 15 I seem
>> > to recall).  Anyway, I've seen this before, and I believe this means
>> > the nvidia 319 driver is at a lower version than is needed, so I
>> > figured all I need is an nvidia upgrade. If I remember right, the
>> > driver from atrpms was still far enough behind to cause the ABI 15
>> > error, so I tried kmod-nvidia from elrepo. After removing the old
>> > nvidia 319 driver, this update pulled in these nvidia libraries:
>> >
>> > nvidia-x11-drv-340.65-1.el6.elrepo.i686
>> > kmod-nvidia-340.65-1.el6.elrepo.i686
>> >
>> > There is no nvidia kmdl rpm installed now (as was the case before),
>> > so I am not sure if this is a problem or not.  When I start the
>> > desktop, everything seems fine, and apps like Mozilla work, but none
>> > of the myth GUIs will start.  I get a segmentation fault with both
>> > the mythfrontend and mythtv-setup. Even with --verbose, mythfrontend
>> > gives me nothing to work with.
>> >
>> > As a test, I also tried doing the nvidia upgrade using scrpms.  With
>> > this upgrade, I was forced to move up to
>> > kernel-2.6.32-504.3.3.el6.i686, so at least I know this update is
>> > pulling in an nvidia-kmdl, unlike kmod.  In the end, this upgrade
>> > attempt was less successful than the kmod upgrade in that the nvidia
>> > driver is never able to load, so the desktop never starts. At the
>> > bottom of Xorg.0.log it shows this:
>> >
>> > [    20.723] (II) LoadModule: "nvidia"
>> > [    20.723] (WW) Warning, couldn't open module nvidia
>> > [    20.723] (II) UnloadModule: "nvidia"
>> > [    20.723] (II) Unloading nvidia
>> > [    20.723] (EE) Failed to load module "nvidia" (module does not
>> > exist, 0) [    20.723] (EE) No drivers available.
>> > [    20.723] (EE) Fatal server error:
>> > [    20.723] (EE) no screens found(EE)
>> > [    20.723] (EE) Please consult the CentOS support at
>> > http://wiki.centos.org/Documentation
>> >
>> > This seems odd since "modprobe nvidia" succeeds.  I tried
>> > nvidia-xconfig to recreate the xorg.conf, but no go. Of course I am
>> > rebooting every time to get a clean start.  After many attempts, it
>> > looks like kmod-nvidia 340.65 may be my best option.
>> >
>> > Is anyone aware of an issue with mythtv 0.26 and the nvidia 340.xx
>> > driver? Alternatively, if anyone has ideas on how to get the scrpms
>> > nvidia driver to work, I am open to trying that again too.
>> >
>> > I have options, but nothing looks good.  Downgrading Xorg seems
>> > problematic, so I didn't go there. I suppose I could upgrade myth to
>> > version 0.27 and see what happens, but that presents some difficulty
>> > on EL6 (although I know that scrpms has compiled both myth 0.27 and
>> > the compatible version of Qt). It also triggers multiple myth
>> > upgrades for BE-FE compatibility. Another option is to go to EL7, but
>> > that requires a decent effort too since there is no good
>> > upgrade-in-place from EL6 32-bit to EL7).
>> >
>> > I apologize in advance if this post is somewhat schizophrenic.  I can
>> > provide more details if anyone can lend a hand.
>>
>> Check out if your new driver supports your card. Times of widely
>> advertised unified nVidia drivers are over.
>
> It does.
>
>>
>> --
>> Cheers, Saul
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