Discuss October 2020

discuss@lists.centos.org

71 participants
52 discussions

02 Oct '20

I now have an older laptop with a display problem. I installed Centos 7 on it in February and had to install the xorg-x11-drv-ati and evdev drivers because the docking station has an ATI Radeon card. Everything worked fine with a dual display setup. I probably after that ran a system update but did not reboot while in this office. Today, when I got to the office again for the first time in seven months it does not boot into the desktop but fails after displaying ”Started Light Display Manager” with a mouse pointer on one display that can be moved but no desktop at all. The keyboard works and I can start a terminal session. If I remove the laptop from the docking station everything works as expected but not in the station, presumably because it now uses the docking station card. Futzing around I see that systemctl --failed lists nothing, nor did dmesg immediately suggest a reason. In the yum history I see that this driver was updated to 19.0.1-3 from the 19.0.1-2 that installed with. Yum downgrade to 19.0.1-2 did not change the issue. Nor has booting an older kernel helped so far. Although when I remove quiet from the grub command line it seems to stop after ”Started Load CPU microcode update” following the ”Started Light Display Manager” already mentioned, I strongly suspect some issue with the graphics driver. Since the computer boots and seems to run fine with the internal display when removed from the docking station it seems that there are no hardware issues in the unit itself. My understanding is that the ATI driver can be a problem and needs to match the kernel etc - perhaps there is something wrong here? Any suggestions for how to attack this? I need to use it in the docking station and have no alternative. Thank you.

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No sound after latest Firefox update (firefox-78.3.0-1.el6.centos.x86_64)
by Robert Nichols 02 Oct '20

02 Oct '20

With Firefox updated to firefox-78.3.0-1.el6.centos.x86_64, I cannot get sound from Firefox. I've tried restarting pulseaudio, also logging out and logging back in. No help. Other A/V apps work just fine. Downgrading to firefox-68.12.0-1.el6.centos.x86_64 makes sound work again. For now, I've excluded version firefox-78.3.0-1 from yum updates. Anyone else seeing this? Any hints? -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.

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Discuss October 2020