Hello.
After being on Ubuntu 14.1 LTS for years, I tried to update to 16.1. Install media Would. Not. See. workstation's RAID so switched to CentOS 7 (all my production stuff uses that anyway). Immediately installed TDE, of course, 14.04 I think.
Two issues with Konsole, possibly related to the video driver (card is an "AMD FirePro V4900" with their drivers).
First is that it seems to have trouble rendering the _ (underbar) character. No problem leaving random underbars on the screen as text advances, but can't seem to put them in the right spot. This is most noticeable on the last line of a screen full of text.
Second, and much more annoying is that when I start Chrome (not my primary browser but necessary for some sites), Konsole becomes very sluggish. Not 2400-baud modem slow, but that was the first thing I thought of. Maybe more like 9600 ... or 14.4 ...
Ideas?
I do run yum update regularly.
-- Peter Laws, BS, MRCP / N5UWY National Weather Center / Network Operations Center University of Oklahoma Information Technology plaws@ou.edu
Peter Laws wrote:
Two issues with Konsole, possibly related to the video driver (card is an "AMD FirePro V4900" with their drivers).
I recently had an experience with older ATI card - the drivers do not work with newer kernels. Especially I tried ubuntu 16 LTS, but had to roll back to 12. check if your card is supported in newer kernel.
As of the other issues someone might be more helpful. I am on debian.
regards
Peter Laws composed on 2017-04-10 12:01 (UTC-0500):
After being on Ubuntu 14.1 LTS for years, I tried to update to 16.1. Install media Would. Not. See. workstation's RAID so switched to CentOS 7 (all my production stuff uses that anyway). Immediately installed TDE, of course, 14.04 I think.
Two issues with Konsole, possibly related to the video driver (card is an "AMD FirePro V4900" with their drivers).
First is that it seems to have trouble rendering the _ (underbar) character. No problem leaving random underbars on the screen as text advances, but can't seem to put them in the right spot. This is most noticeable on the last line of a screen full of text.
Second, and much more annoying is that when I start Chrome (not my primary browser but necessary for some sites), Konsole becomes very sluggish. Not 2400-baud modem slow, but that was the first thing I thought of. Maybe more like 9600 ... or 14.4 ...
Ideas?
The 1.17.2 CentOS 7 Xorg server has a built-in driver "modeset(0)" that works for most of the big 3 gfxchips. Some distros have made the internal driver the preferred driver for certain gfxchips. To try it can be as simple as removing all Xorg driver packages applicable specifically to your gfxchip and restart the server. If you have xorg.conf* configured to use a specific driver, or use an xrandr startup script to configure Xorg, then it would need to be removed or adjusted accordingly.
On Mon, Apr 10, 2017 at 3:27 PM, Felix Miata mrmazda@earthlink.net wrote:
The 1.17.2 CentOS 7 Xorg server has a built-in driver "modeset(0)" that works for most of the big 3 gfxchips. Some distros have made the internal driver the preferred driver for certain gfxchips. To try it can be as simple as removing all Xorg driver packages applicable specifically to your gfxchip and restart the server. If you have xorg.conf* configured to use a specific driver, or use an xrandr startup script to configure Xorg, then it would need to be removed or adjusted accordingly.
My problem is that I'm a "install it and forget it" person so I don't have much experience poking around in xorg.conf.
AMD helpfully provides an uninstall script, which seems to have worked but may have left some items installed (uninstall log was decidedly unhelpful). It left me without an xorg.conf at all so the driver picked a generic config. Problem is that I have displays on both DVI connectors and the HDMI connector. The default doesn't see that. I tried using aticonfig to generate an initial config but that leads to no display and a warning about "kernel module (fglrx.ko) may be missing or incompatible ".
Really not sure where to go from here which is why, initially, I'd installed all the AMD/ATI stuff (including their GUI control panel).
But I can confirm that the AMD drivers aren't very good. The problem with konsole exists when I run Opera, too, in addition to Chrome. And I'm really tired of Firefox. :-)
-- Peter Laws, BS, MRCP / N5UWY National Weather Center / Network Operations Center University of Oklahoma Information Technology plaws@ou.edu
On Fri, 21 Apr 2017 12:54:20 -0500 Peter Laws plaws@ou.edu wrote:
On Mon, Apr 10, 2017 at 3:27 PM, Felix Miata mrmazda@earthlink.net wrote:
The 1.17.2 CentOS 7 Xorg server has a built-in driver "modeset(0)" that works for most of the big 3 gfxchips. Some distros have made the internal driver the preferred driver for certain gfxchips. To try it can be as simple as removing all Xorg driver packages applicable specifically to your gfxchip and restart the server. If you have xorg.conf* configured to use a specific driver, or use an xrandr startup script to configure Xorg, then it would need to be removed or adjusted accordingly.
My problem is that I'm a "install it and forget it" person so I don't have much experience poking around in xorg.conf.
AMD helpfully provides an uninstall script, which seems to have worked but may have left some items installed (uninstall log was decidedly unhelpful). It left me without an xorg.conf at all so the driver picked a generic config. Problem is that I have displays on both DVI connectors and the HDMI connector. The default doesn't see that. I tried using aticonfig to generate an initial config but that leads to no display and a warning about "kernel module (fglrx.ko) may be missing or incompatible ".
fglrx is the AMD-proprietary module for their older cards (I understand it to be unmaintained, by the way). The open-source driver is radeon. Sifting through the output from the lsmod or lspci -v commands should tell you what driver you're using now if you're not sure.
aticonfig probably expects fglrx for your card and won't work with the other drivers.
Really not sure where to go from here which is why, initially, I'd installed all the AMD/ATI stuff (including their GUI control panel).
The Gentoo wiki page on multiple monitors gives some instructions on how to hand-roll appropriate configurations if you want to go there:
https://wiki.gentoo.org/wiki/Xorg/Multiple_monitors#Configuration
Use xrandr -q to get a list of attached displays. You'll need to know what driver your video card is using to write a valid xorg.conf for this.
But I can confirm that the AMD drivers aren't very good. The problem with konsole exists when I run Opera, too, in addition to Chrome. And I'm really tired of Firefox. :-)
In general, the Intel drivers and the nVidia proprietary drivers seem to be the most reliable ones. The nVidia open-source drivers (nouveau) are reverse-engineered and not very reliable at all. The AMD drivers (both sets) are supposed to be somewhere in between. I've stuck with nVidia cards and have had no problems (well, until the one in my laptop got end-of-lifed).
It makes sense that Opera and Chrome would react in the same way, since they use the same rendering engine. You could try a pure Webkit browser like Vivaldi or Midori and see if that's any better (it might not be, though).
E. Liddell
On Fri, Apr 21, 2017 at 6:36 PM, E. Liddell ejlddll@googlemail.com wrote:
In general, the Intel drivers and the nVidia proprietary drivers seem to be the most reliable ones. The nVidia open-source drivers (nouveau) are reverse-engineered and not very reliable at all. The AMD drivers (both sets) are supposed to be somewhere in between. I've stuck with nVidia cards and have had no problems (well, until the one in my laptop got end-of-lifed).
We lease systems and this one expires soon, actually. Next one will have nVidia!
I played with this some more but got frustrated. Did a --force reinstall of the AMD drivers and am back to where I was. Evidently I've been living right or something because the issues I saw before with Konsole being a slug when Opera was running are GONE. The underbar artifact is gone as well. I am content not knowing why and am just glad I have all ...
Dangit, it's back. Apparently the driver doesn't like me opening an Opera window with GMail.
Well, regardless. nVidia next time.
Thanks, all, for all the help and suggestions!
Peter
-- Peter Laws, BS, MRCP / N5UWY National Weather Center / Network Operations Center University of Oklahoma Information Technology plaws@ou.edu
On 2017/04/11 02:01 AM, Peter Laws wrote:
Hello.
After being on Ubuntu 14.1 LTS for years, I tried to update to 16.1. Install media Would. Not. See. workstation's RAID so switched to CentOS 7 (all my production stuff uses that anyway). Immediately installed TDE, of course, 14.04 I think.
Two issues with Konsole, possibly related to the video driver (card is an "AMD FirePro V4900" with their drivers).
First is that it seems to have trouble rendering the _ (underbar) character. No problem leaving random underbars on the screen as text advances, but can't seem to put them in the right spot. This is most noticeable on the last line of a screen full of text.
Second, and much more annoying is that when I start Chrome (not my primary browser but necessary for some sites), Konsole becomes very sluggish. Not 2400-baud modem slow, but that was the first thing I thought of. Maybe more like 9600 ... or 14.4 ...
Ideas?
I do run yum update regularly.
--
Hi, not sure if this can be helpful, but I noticed that if I build TDE locally within a VM (debian) without using a clean chroot build environment, I have similar issues with the refresh of Konsole (_ left randomly here and there, I actually believe they are not underbars but part of characters which is not cleared properly). Building in the same VM but in clean build environment does not cause this issue. The difference between the two is that when building locally packages are linked against the VM video driver. All this to point out that perhaps the issue is indeed related to video card support.
Cheers Michele
Michele Calgaro wrote:
Hi, not sure if this can be helpful, but I noticed that if I build TDE locally within a VM (debian) without using a clean chroot build environment, I have similar issues with the refresh of Konsole (_ left randomly here and there, I actually believe they are not underbars but part of characters which is not cleared properly). Building in the same VM but in clean build environment does not cause this issue. The difference between the two is that when building locally packages are linked against the VM video driver. All this to point out that perhaps the issue is indeed related to video card support.
This somehow reminds me of my question about build environments. I created a chroot build environment for debugging and testing and no such issue is visible. Perhaps we could work out a "standard" that would be valid for all, based on our experience.
What do you mean by clean build environment BTW?
regards
On 2017/04/12 01:55 AM, deloptes wrote:
Michele Calgaro wrote:
Hi, not sure if this can be helpful, but I noticed that if I build TDE locally within a VM (debian) without using a clean chroot build environment, I have similar issues with the refresh of Konsole (_ left randomly here and there, I actually believe they are not underbars but part of characters which is not cleared properly). Building in the same VM but in clean build environment does not cause this issue. The difference between the two is that when building locally packages are linked against the VM video driver. All this to point out that perhaps the issue is indeed related to video card support.
This somehow reminds me of my question about build environments. I created a chroot build environment for debugging and testing and no such issue is visible. Perhaps we could work out a "standard" that would be valid for all, based on our experience.
What do you mean by clean build environment BTW?
regards
Hi Emanoil, by "clean build environment" I mean a chroot build environment that is independent of what packages are installed in my system. Basically what you get by using pbuilder or debuild. My next thing to do in TDE is publishing building scripts for Debian/Ubuntu as I mentioned a couple of months ago. I am currently under very heavy work load and have had no time for TDE for a few weeks. Will let you know when the scripts are ready for testing ;-)
cheers Michele
Michele Calgaro wrote:
My next thing to do in TDE is publishing building scripts for Debian/Ubuntu as I mentioned a couple of months ago. I am currently under very heavy work load and have had no time for TDE for a few weeks. Will let you know when the scripts are ready for testing
Thanks, no worry, same situation here.
regards
Am Montag, 10. April 2017 schrieb Peter Laws:
Hello.
After being on Ubuntu 14.1 LTS for years, I tried to update to 16.1. Install media Would. Not. See. workstation's RAID so switched to CentOS 7 (all my production stuff uses that anyway). Immediately installed TDE, of course, 14.04 I think.
Two issues with Konsole, possibly related to the video driver (card is an "AMD FirePro V4900" with their drivers).
First is that it seems to have trouble rendering the _ (underbar) character. No problem leaving random underbars on the screen as text advances, but can't seem to put them in the right spot. This is most noticeable on the last line of a screen full of text.
Second, and much more annoying is that when I start Chrome (not my primary browser but necessary for some sites), Konsole becomes very sluggish. Not 2400-baud modem slow, but that was the first thing I thought of. Maybe more like 9600 ... or 14.4 ...
Ideas?
I do run yum update regularly.
"Possibly related to the video driver" is a valid assumption :-)
Please check, if you can get the open source drivers working at a decent speed first. If that fails, try the proprietary drivers.
Nik
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deloptes -
Dr. Nikolaus Klepp -
E. Liddell -
Felix Miata -
Michele Calgaro -
Peter Laws