Hey there,
So I bought one of these cheap 2560x1440 korean monitors, the "X-Star" IPS panel.
It has one DVI-D input, and my laptop (Lenovo G510) has one HDMI output. I naively bought an HMDI - DVI adapter cable, and when I plug in the monitor using the cable my computer immediately bluescreens with "bad pooling call," 0x00C2.
My laptop has Intel HD 4600 graphics, but also a discrete Radeon HD8750m. When I disable the intel GPU in the hardware manager, I can plug in the screen without the BSOD, but I can't get a signal over to it; all the software for extended displays is on the intel side.
I've experimented with drivers, but I can't seem to find any solution. I would hate to have to buy a USB 3.0 DVI/HDMI adapter for 50 bucks...
Please no responses telling me that I can't put 2560x1400 through an HDMI cable - read this: http://www.notebookcheck.net/2560x1440-or-2560x1600-via-HDMI.92840.0.html
Any ideas? I'm sure this is a driver issue...
Thanks!
Does the HDMI output have any form of HDCP on it?
You have to use dual link DVI for the X-Star. It's your only option.
Update the intel drivers. Dual link DVI is your only options. The intel drivers are such crap that they used to BSOD even on the surface 3 when there wasn't enough bandwidth for the monitor. This is probably same kind of deal. Update the intel drivers.. probably also the mobile radeon drivers too.
Some monitors can do higher-clock-rate hdml (hdmi 1.4) which is like 2560x1440 over single-link dvi
the Xstars are not that, though.
Ah! I didn't have the most recent drivers! (Had been downloading them from the support page of this Lenovo laptop...)
Ok, so no more bluescreens, it's even recognizing the monitor... kindof.
I can go into Intel's control panel and set a custom resolution, however it gives the error "the custom resolution exceeds the maximum bandwidth capacity."
hmmm...
(Thanks for the insight, Wendell! Keep up the good work with Logan and the team! ;-P)
It's also giving the bandwidth error for 1920x1080p at 30hz....
Got it.
So the blue screen was caused by crappy old intel drivers - the newest ones allowed me to plug in the screen but not change it's resolution, claiming the maximum bandwidth had been exceeded.
The solution to this was a registry hack using a tool called DTD calcuator, explained here:
http://www.avsforum.com/forum/26-home-theater-computers/947830-custom-resolution-tool-intel-graphics-easier-overscan-correction.html
I'm a happy camper!