[opensuse] Help with VGA display on laptop.
![](https://seccdn.libravatar.org/avatar/7ec4c6d48964b25c3232ec6b29240b2a.jpg?s=120&d=mm&r=g)
I have just begun researching this problem, so pardon me if I missed the obvious again;-) I have a Dell 1721 laptop with an AMD/ATI RD690M {Radeon Express 1200/1250/1270] graphics controller. OpenSuse 13.2 functions perfectly on the internal UXGA laptop screen. But when I connect an external monitor (Dell 2405FPW also UXGA) and boot the system the graphics are trashed. Both are UXGA, and I tried Unified Outputs. And this also happens when the monitor is turned off during the boot. So I assume it is the presence of the VGA plug that is causing the corruption during boot. If I plug the monitor in after the system has been booted the monitor does not detect the computer, suggesting that the computer is in a sleep mode. But if I look at System Settings/Display Configuration GUI both screens are shown. The laptop monitor is working great and the external monitor sees nothing. I have successfully used this pair of devices since 2008 under Fedora?? So I assume it is a setup problem. Tomorrow I will try a fresh install from the distribution disk with the monitor connected to see if there are any variations. I also tried to make a VGA connection from my laptop that provides HDMI connections. It has an Intel graphics chipset. I used an HDMI to VGA adapter and achieved similar results. But if I connect this unit via the HDMI cable rather than the VGA cable it functions correctly. Tomorrow I will also try connecting the this computer through the VGA cable to the HDMI monitor, as opposed to the UXGA monitor. Is there a guide to setting up X under openSuse 13.2? Since the system works in single monitor mode, I am assuming that the kernel modules etc. are correct. Nothing obvious was present in my dmesg file, but I am not sure what to look for. I have edited xorg.conf files since the 90s, but I believe that is discouraged now. Any suggestions would be appreciated. Thanks, Don -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
![](https://seccdn.libravatar.org/avatar/27aacf61a13c66fcc083fcf8a84823bc.jpg?s=120&d=mm&r=g)
On 04/09/2015 09:29 PM, don fisher wrote:
I have successfully used this pair of devices since 2008 under Fedora?? So I assume it is a setup problem. Tomorrow I will try a fresh install from the distribution disk with the monitor connected to see if there are any variations.
Post your results back here. I have run into similar problems with similar Radeon card that worked fine under 11.4 only to find that the re-write in X that took place during the 12.2/12.3 timeframe removed/lost a number of capabilities regarding my card (backlight control, internal/external monitor switch via hotkeys, etc..) I'm interested in what you find. You can look at my bug (WONTFIX) on the issue and see if you have any similar symptoms: https://bugzilla.novell.com/show_bug.cgi?id=887629 -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (2)
-
David C. Rankin
-
don fisher