- Jan 16, 2014
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I recently picked up a Gigabyte Windforce x3 R9 280X and am having a problem with the output over DVI. Here's what I have done so far:
- Monitor (Viewsonic VX2739wm) is connected via DVI at this point.
- Uninstalled old drivers from system, shut down and pulled card (PowerColor Myst 7870XT) out.
- Installed Windforce, booted in to Win7, installed latest beta drivers, rebooted afterward.
- On reboot after driver install, the screen remained in power saving mode and wouldn't light back up.
- Waited until POST beep (comp at Grub boot menu) and cut the power. Powered back up and the computer booted fine into Win7 without any display issues. I ran the card through some tests and it behaves fine, good temps and performance. I then rebooted to head into Linux and install the AMD drivers on that side.
- On reboot the screen did the same thing, stayed in power saving mode and would not come back on. I waited for the beep and cut the power again. Powered back up and it booted up just fine (went in to Windows again, not ready to install Linux drivers with this problem).
- I then rebooted several times and it was like roulette; sometimes the DVI output would come right up at the start of POST and other times it wouldn't. More than 50% of the time it wouldn't light up though. On one reboot that failed to power the monitor back up I hit my arrow-up key on the keyboard at the POST beep (to stop the Grub timer from loading the default OS (Win7) and walked away from the computer for a moment. When I returned the Grub menu was on the screen, the DVI signal had finally woke the monitor up.
- Intrigued by this I rebooted and again the screen remained black throughout the POST cycle. I again hit the arrow key at the Grub menu and then sat there watching. About 20 seconds later the monitor came to life! Strange...
- I shut the system down and swapped out the DVI cable with a known good one and got the same results.
- I shut the system down again, pulled the DVI cable and connected the monitor via HDMI. Repeated testing shows that the HDMI to HDMI connection behaves normally, no problems at all with rebooting to a lagging signal like the DVI side does.
- I then tested the system with a DVI cable and a DVI to HDMI adapter on one end (video card end, DVI end at monitor). The monitor behaves the same way as DVI to DVI, the screen frequently will not power up until about 20 seconds after POST completes.
I stopped there but will later test DVI out at card to HDMI in at monitor to see how it behaves. The card works great other than this issue. Any thoughts?
- Monitor (Viewsonic VX2739wm) is connected via DVI at this point.
- Uninstalled old drivers from system, shut down and pulled card (PowerColor Myst 7870XT) out.
- Installed Windforce, booted in to Win7, installed latest beta drivers, rebooted afterward.
- On reboot after driver install, the screen remained in power saving mode and wouldn't light back up.
- Waited until POST beep (comp at Grub boot menu) and cut the power. Powered back up and the computer booted fine into Win7 without any display issues. I ran the card through some tests and it behaves fine, good temps and performance. I then rebooted to head into Linux and install the AMD drivers on that side.
- On reboot the screen did the same thing, stayed in power saving mode and would not come back on. I waited for the beep and cut the power again. Powered back up and it booted up just fine (went in to Windows again, not ready to install Linux drivers with this problem).
- I then rebooted several times and it was like roulette; sometimes the DVI output would come right up at the start of POST and other times it wouldn't. More than 50% of the time it wouldn't light up though. On one reboot that failed to power the monitor back up I hit my arrow-up key on the keyboard at the POST beep (to stop the Grub timer from loading the default OS (Win7) and walked away from the computer for a moment. When I returned the Grub menu was on the screen, the DVI signal had finally woke the monitor up.
- Intrigued by this I rebooted and again the screen remained black throughout the POST cycle. I again hit the arrow key at the Grub menu and then sat there watching. About 20 seconds later the monitor came to life! Strange...
- I shut the system down and swapped out the DVI cable with a known good one and got the same results.
- I shut the system down again, pulled the DVI cable and connected the monitor via HDMI. Repeated testing shows that the HDMI to HDMI connection behaves normally, no problems at all with rebooting to a lagging signal like the DVI side does.
- I then tested the system with a DVI cable and a DVI to HDMI adapter on one end (video card end, DVI end at monitor). The monitor behaves the same way as DVI to DVI, the screen frequently will not power up until about 20 seconds after POST completes.
I stopped there but will later test DVI out at card to HDMI in at monitor to see how it behaves. The card works great other than this issue. Any thoughts?
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