On 1/15/19 3:20 PM, Dick Steffens wrote:
I'm trying to downgrade from the nVidia legacy 390 driver to the
legacy 340 driver. To do so I first downloaded the
nvidia-legacy340-kernel.tar.gz, and unpacked it. Then I downloaded
NVIDIA-Linux-x86_64-340.104.run and moved it to the
nvidia-legacy340-kernel directory. Then I downloaded
NVIDIA-Linux-x86_64-390.87.run from the nVidia site. I ran
nvidia-legacy340-kernel.SlackBuild
Next I downloaded and unpacked nvidia-legacy340-driver.tar.gz. I
downloaded nvidia-modprobe-340.104.tar.bz2,
nvidia-persistenced-340.104.tar.bz2, nvidia-settings-340.104.tar.bz2,
nvidia-xconfig-340.104.tar.bz2, NVIDIA-Linux-x86_64-340.104.run and
moved them all into nvidia-legacy340-driver. Then I ran
nvidia-legacy340-driver.SlackBuild.
Before installing the packages I ran nvidia-switch --remove
Next I ran installpkg
/tmp/nvidia-legacy340-kernel-340.104_4.4.157-x86_64-1_SBo.tgz . It
reported Package
nvidia-legacy340-kernel-340.104_4.4.157-x86_64-1_SBo.tgz installed.
Then I ran installpkg
/tmp/nvidia-legacy340-driver-340.104-x86_64-1_SBo.tgz. It reported
Package nvidia-legacy340-driver-340.104-x86_64-1_SBo.tgz installed.
When I run startx I get the error:
(EE)
Fatal server error:
(EE) no screens found(EE)
(EE)
<...>
In dmesg I find:
[257997.749754] NVRM: API mismatch: the client has the version
340.104, but
NVRM: this kernel module has the version 390.87. Please
NVRM: make sure that this kernel module and all NVIDIA
driver
NVRM: components have the same version.
I thought nvidia-switch --remove should have removed the old kernel.
What did I miss this time?
I neglected to restart. Once I did that I was able to startx. However, I
had hoped the downgrade to version 340 would solve my problem of not
getting the two monitors in the positions I want them.
I noticed some nvidia_modeset messages running by when I was restarting.
Here's what I see in dmesg:
[ 15.457662] nvidia_modeset: Unknown symbol nv_kthread_q_flush (err 0)
[ 15.457683] nvidia_modeset: Unknown symbol
nv_kthread_q_schedule_q_item (err 0)
[ 15.457711] nvidia_modeset: Unknown symbol nvidia_get_rm_ops (err 0)
[ 15.457728] nvidia_modeset: Unknown symbol nv_kthread_q_item_init (err 0)
[ 15.457740] nvidia_modeset: Unknown symbol nv_kthread_q_stop (err 0)
[ 15.457759] nvidia_modeset: Unknown symbol nv_kthread_q_init (err 0)
And near the end:
[ 39.326881] NVRM: Your system is not currently configured to drive a
VGA console
[ 39.326884] NVRM: on the primary VGA device. The NVIDIA Linux
graphics driver
[ 39.326886] NVRM: requires the use of a text-mode VGA console. Use of
other console
[ 39.326888] NVRM: drivers including, but not limited to, vesafb, may
result in
[ 39.326889] NVRM: corruption and stability problems, and is not
supported.
[ 67.447694] NVRM: API mismatch: the client has the version 390.87, but
NVRM: this kernel module has the version 340.104. Please
NVRM: make sure that this kernel module and all NVIDIA
driver
NVRM: components have the same version.
[ 67.447710] NVRM: nvidia_frontend_ioctl: minor 255, module->ioctl
failed, error -22
Do those messages have anything to do with my positioning problem? And
if not, are they significant for my regular operation?
--
Regards,
Dick Steffens
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